The embodiments of the present disclosure provide a fingerprint template update method and apparatus, and an electronic device. The fingerprint template update method comprises: obtaining a fingerprint image generated by a fingerprint sensor on the basis of an input fingerprint of a user, and determining whether or not a matching relationship is present between the fingerprint image and a fingerprint template in a fingerprint template library; if a matching relationship is present between the fingerprint image and the fingerprint template, on the basis of the matching relationship, using fingerprint feature information of the fingerprint image to perform fingerprint feature expansion on the fingerprint template; and updating the fingerprint template library with the fingerprint template that has undergone fingerprint feature expansion. The embodiments of the present disclosure enable effective expansion of baseline fingerprint feature information of fingerprint templates in a fingerprint template library, thereby effectively improving fingerprint recognition performance and accuracy and enhancing user experience.
Provided in the embodiments of the present application are a signal generation circuit, a chip and an active stylus. The signal generation circuit comprises: a boost circuit, a charge pump and an encoding circuit, wherein an input end of the boost circuit is connected to a power supply, an output end of the boost circuit is connected to an input end of the charge pump, and an output end of the charge pump is connected to the encoding circuit; the boost circuit is used for boosting a power supply voltage, which is provided by the power supply, to a preset voltage; the charge pump is used for raising the preset voltage by a preset integer factor to generate a target voltage; and the encoding circuit is used for receiving the target voltage and generating an encoding signal at least on the basis of the target voltage. On the basis of the above solution, the signal generation circuit provided in the embodiments of the present application can have relatively low design and use costs and a relatively high working efficiency.
Embodiments of the present disclosure provide a vision processing system, a visual data processing method, a chip, and a computer storage medium. The vision processing system comprises: a plurality of nodes connected to form a network, the plurality of nodes at least comprising a first node and a second node. The second node comprises a second transmission unit, and the second node is used to: obtain first visual data, and, on the basis of a first transmission protocol and by means of the second transmission unit, transmit the first visual data to the first node. The first node comprises a first image signal processing unit and a first transmission unit, and the first node is used to: on the basis of the first transmission protocol and by means of the first transmission unit, receive the first visual data from the second node, and perform image signal processing on the first visual data by means of the first image signal processing unit, to obtain second visual data.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
4.
METHOD FOR SYNCHRONIZATION BETWEEN ACTIVE STYLUS AND TOUCH SCREEN, ACTIVE STYLUS
A method for synchronization between an active stylus and a touch screen, and an active stylus are provided, which can improve the synchronization speed between the touch screen and the active stylus. The method includes: transmitting a pre-synchronization signal to the touch screen, wherein the pre-synchronization signal is used to determine a target region where the active stylus is located on the touch screen, so that the touch screen transmits an uplink signal in the target region; detecting the uplink signal; and performing, in response to the uplink signal being detected, time synchronization with the touch screen based on the uplink signal.
The embodiments of the present disclosure belong to the technical field of fingerprint recognition. Provided are a fingerprint image processing method and apparatus, and an electronic device. The fingerprint image processing method comprises: acquiring a first fingerprint image generated by means of a fingerprint sensor; and using global information of the first fingerprint image as an input to predict fingerprint image extension information beyond at least part of the boundary of the first fingerprint image, and using the fingerprint image extension information to perform corresponding image growth, so as to generate a second fingerprint image. By means of the embodiments of the present disclosure, a fingerprint image generated by a fingerprint sensor can be fully utilized to acquire a more accurate prediction result, thereby facilitating an improvement in the correct recognition rate of fingerprint recognition tasks. Moreover, a process can be simplified, and the efficiency can be improved.
A drive circuit, a touch drive apparatus, and an electronic device are provided. The circuit comprises a first node, a second node, a ground node, a switch circuit, and an energy storage capacitor. The first node is configured to provide a first positive voltage. The second node is configured to provide a first negative voltage. The switch circuit is configured to control a first terminal of the energy storage capacitor to be selectively connected to the ground node or the drive electrode, and control a second terminal of the energy storage capacitor to be selectively connected to the ground node or the drive electrode. In one phase, the first terminal of the energy storage capacitor receives charges released from the drive electrode. In another phase, the second terminal of the energy storage capacitor charges the drive electrode using stored charges.
Provided in the embodiments of the present application are a touch controller integrated circuit, a touch control driving apparatus and a vehicle-mounted touch control screen. An output end of the touch controller integrated circuit is connected to a filtering module, and the output end of the touch controller integrated circuit outputs a driving square-wave signal, wherein the output end of the touch controller integrated circuit comprises pins of the touch controller integrated circuit. The filtering module receives the driving square-wave signal and performs filtering processing on the driving square-wave signal, so as to output a touch control driving signal of a sinusoidal waveform. The touch controller integrated circuit provided by the present application can generate a touch control driving signal of a sinusoidal waveform, thus producing less electromagnetic radiation interference compared with using a square wave signal to perform driving in the prior art, such that electromagnetic radiation interference of a vehicle-mounted touch control screen can satisfy automotive standards.
Provided are a fingerprint image processing method and apparatus, an electronic device, and a storage medium. The fingerprint image processing method comprises: acquiring a plurality of fingerprint sub-images respectively collected by a plurality of pixel units of an optical fingerprint sensor at a current moment, and performing fusion processing on the plurality of fingerprint sub-images, to obtain a fusion image; from within the fusion image, determining a first image area corresponding to the position of a first target sub-image among the plurality of fingerprint sub-images, and expanding the edge of the first image area according to the fusion image, to obtain a first expanded image; determining an input image according to at least one fingerprint sub-image, and expanding the edge of the input image according to the fusion image, to obtain a second expanded image, wherein the at least one fingerprint sub-image comprises the first target sub-image; and determining one of the first expanded image and the second expanded image to be an output image used for performing fingerprint recognition.
Provided in the present application are a fingerprint image processing method and apparatus, an electronic device, and a storage medium. The fingerprint image processing method comprises: acquiring a plurality of fingerprint sub-images respectively collected by a plurality of pixel units of an optical fingerprint sensor at a current moment, and determining an optimum quality sub-image amongst the plurality of fingerprint sub-images; for each fingerprint sub-image other than the optimum quality sub-image amongst the plurality of fingerprint sub-images, on the basis of reference offset data, determining the similarity between an overlapping part of the fingerprint sub-image and the optimum quality sub-image and, on the basis of the similarity, determining a real-time offset of the current moment between the fingerprint sub-image and the optimum quality sub-image; on the basis of the real-time offset of the current moment between each fingerprint sub-image and the optimum quality sub-image, aligning the plurality of fingerprint sub-images, and fusing the plurality of aligned fingerprint sub-images to obtain a fused image for fingerprint recognition.
Disclosed in the present application are an optical sensing module and an electronic device. The optical sensing module comprises a substrate, a light-shielding layer, one or more optical sensing chips, a light-transmitting layer and a transparent conductive layer, wherein the one or more optical sensing chips are arranged above the substrate; the light-shielding layer covers the portion of the one or more optical sensing chips that is not attached to the substrate and the light-transmitting layer, and the light-shielding layer covers the portion of the light-transmitting layer that excludes a second surface and is not attached to the one or more optical sensing chips; the transparent conductive layer is attached to the second surface of the light-transmitting layer, and the transparent conductive layer is electrically connected to a ground wire in the substrate; and the transparent conductive layer is used for shielding interference signals affecting the one or more optical sensing chips. By means of providing a transparent conductive layer, the present application can improve the precision of electrical signals generated by an optical sensing module.
G06F 3/042 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
11.
VOICE CONTROL METHOD AND APPARATUS CHIP, EARPHONES, AND SYSTEM
A voice control method and apparatus, a chip, earphones, and a system. The method includes: recognizing (001) whether a voice signal includes a keyword; in response to the voice signal including the keyword, executing (001a) an instruction corresponding to the keyword or sending the instruction; before recognizing whether the voice signal includes the keyword, determining (002) whether the voice signal is from a target user and, in response to the voice signal being from the target user, starting to recognize (001) whether the voice signal includes the keyword; or during recognizing whether the voice signal includes the keyword, determining (002) whether the voice signal is from the target user and, in response to the voice signal being from a non-target user, stopping recognizing (003a) whether the voice signal includes the keyword. The voice control method reduces the power consumption of voice control and improves the endurance.
Embodiments of the present application provide a touch detection method and touch detection circuit for a touch display panel, a touch chip, and an electronic device. The touch display panel comprises a display layer and a touch layer, and the touch layer comprises a plurality of sensing electrodes. The method comprises: separately detecting signals on a plurality of sensing electrodes to obtain pieces of original detection data respectively corresponding to the plurality of sensing electrodes, the signals on the plurality of sensing electrodes comprising display interference signals; for a target sensing electrode among the plurality of sensing electrodes, determining a display interference compensation value corresponding to the target sensing electrode, the target sensing electrode comprising at least one of the plurality of sensing electrodes, and the display interference compensation value being used for indicating the interference intensity of the display interference signal on the target sensing electrode; and, on the basis of the display interference compensation value corresponding to the target sensing electrode, correcting original detection data corresponding to the target sensing electrode to obtain target detection data corresponding to the target sensing electrode for determining the result of touch detection.
The present application provides a networking data transmission method, a chip, and a communication system, used for realizing more flexible networking data transmission, improving the efficiency and bandwidth of data transmission, and reducing the time delay of data transmission. The networking data transmission method comprises: a first node initiates transmission of a first common packet, wherein the first common packet comprises first common data; an i-th child node receives the first common packet sequentially transmitted in networking, and adds first node data to the first common packet; and a termination node receives the first common packet sequentially transmitted by N child nodes in the networking, wherein at this time, the first common packet comprises the first common data and the first node data, or a k-th child node receives the first common packet sequentially transmitted in the networking, and acquires the first node data in the first common packet, and then the termination node receives the first common packet sequentially transmitted by the N child nodes in the networking, wherein at this time, the first common packet comprises the first common data, and i is less than k in a transmission direction.
Provided in the embodiments of the present application are a ranging positioning method, a positioning system, a chip and a storage medium. The method comprises: receiving a first key sent by a device to be positioned, and determining a second key on the basis of the first key; sending the second key to N broadcast receiving devices, such that each of the N broadcast receiving devices decrypts, on the basis of the second key, an encrypted broadcast sent by the device to be positioned, so as to determine ranging calculation information, wherein the ranging calculation information of a broadcast receiving device comprises the signal strength of the encrypted broadcast on the corresponding broadcast receiving device, or a ranging result of the corresponding broadcast receiving device; and receiving the ranging calculation information sent by each broadcast receiving device, and calculating, on the basis of the received ranging calculation information, position information of the device to be positioned. By means of the embodiments of the present application, ranging positioning can be conveniently realized while a security attack problem is avoided, that is, the position information of the device to be positioned can be conveniently determined.
Provided in the present application are an intelligent card switching method and apparatus, a storage medium and an electronic device. The method comprises: when a card selection requirement is detected, selecting a target card from M cards by means of a card management application, and sending a card switching instruction to a security unit, the card switching instruction carrying a target primary application identifier of the target card; by means of the security unit, determining the target primary application identifier according to the card switching instruction, and setting a logic mark for the target primary application identifier in an application identifier set, the logic mark being used for indicating that the target card is in an activated state; and, according to the card switching instruction, sending a target non-contact protocol parameter of the target card to a near-field communication controller, such that the near-field communication controller uses the target non-contact protocol parameter to perform anti-collision interaction with a card reading device. The embodiments of the present application can conveniently achieve intelligent card switching, thereby improving the efficiency of intelligent card switching.
H04B 5/40 - Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
16.
CARD RECOMMENDATION METHOD AND APPARATUS, ELECTRONIC DEVICE, SECURITY CHIP, AND STORAGE MEDIUM
The present invention provides a card recommendation method and apparatus, an electronic device, a security chip, and a storage medium. The method comprises: detecting a card preference setting operation, and on the basis of cards indicated by the card preference setting operation, updating a preferred card list, so as to add or remove, into or from the preferred card list, any card among the cards indicated by the card preference setting operation; on the basis of the preferred card list, determining N cards, wherein the N cards comprise each card in the preferred card list, and N is a positive integer; and performing card recommendation sorting on the N cards to obtain a first card recommendation sorting result, and using the first card recommendation sorting result as a target card recommendation sorting result, wherein the target card recommendation sorting result supports sequential recommendation of the cards, i.e., supporting that the cards in the target card recommendation sorting result can be recommended on the basis of a recommendation sequence. The embodiments of the present invention can perform card commendation on the basis of the target card recommendation sorting result, thereby improving the intelligent card selection performance.
H04B 5/40 - Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
17.
INTELLIGENT CARD SELECTION METHOD AND APPARATUS AND ELECTRONIC DEVICE
Embodiments of the present disclosure relate to the technical field of near-field communications, and provide an intelligent card selection method and apparatus and an electronic device. A specific implementation of the method comprises: the method is applied to an electronic device, and the electronic device comprises a security element and a near-field communication controller; and the method comprises: the security element inputting a card selection data group into an intelligent card selection model, selecting a first target card from a first recommendation table output by the intelligent card selection model, reading a first non-contact protocol parameter of the first target card, and writing the first non-contact protocol parameter into the near-field communication controller; the near-field communication controller receiving a first card swiping request triggered by a card reading device; and the near-field communication controller responding to the first card swiping request by using the first non-contact protocol parameter. The implementation can achieve high card switching efficiency and sensitive response, intelligent card switching can still be performed even in a shutdown state, the card switching convenience and card switching experience of a user are improved, and the application scenario is wide.
H04B 5/40 - Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
18.
FINGERPRINT ARRAY STRUCTURE, FINGERPRINT SENSOR CHIP, AND ELECTRONIC DEVICE
Disclosed in the present application is a fingerprint array structure, a fingerprint sensor chip, and an electronic device and relates to the technical field of fingerprint identification. The fingerprint array structure comprises a pixel array, a circuit layer and a plurality of connecting line groups, where the pixel array comprises a plurality of pixel groups, each pixel group comprises at least two pixel units, the circuit layer comprises a plurality of pixel circuits and a plurality of non-pixel circuits, at least one portion of a projection of the circuit layer perpendicularly facing the pixel array overlaps the pixel array, each pixel circuit is electrically connected to one pixel group through one connecting line group. According to the present application, the proportion of the pixel array of the present application is higher and the chip area is smaller on the condition that the size specifications of pixel arrays are the same.
Embodiments of the present application provide a touch signal-to-noise ratio amplifier circuit, a chip, and an electronic device. The touch signal-to-noise ratio amplifier circuit is provided with a first bias resistor and a first-stage operational amplifier module after an output end of a touch sensor, a first end of the first bias resistor is connected to a preset voltage, and a second end of the first bias resistor is connected to the output end of the touch sensor and is connected to an in-phase input end of a first-stage operational amplifier. In this way, it is possible to achieve voltage-based in-phase amplification of electrical signals outputted by a touch sensor electrical signal receiving module, thus discarding traditional current-based amplification methods, and hence the noise gain will not increase along with an increase in load capacitance, thus reducing the attenuation of signals outputted by the touch sensor due to a change in a cathode panel, reducing the influence of the increased size of a capacitive screen on the signal-to-noise ratio (SNR), amplifying the SNR of the capacitive screen, and improving the precision of signals of the touch sensor of the capacitive screen.
Provided in the embodiments of the present application are data communication monitoring methods, which are applied to a data monitoring terminal. A first data transmitting end and a second data transmitting end send data packets to each other to realize data communication, and the data monitoring terminal receives the data packets to realize data communication monitoring. A method comprises: receiving a first data packet in the current connection event; and, according to whether at least one bit amongst reserved bits of the first data packet is a first flag, determining the sender of the first data packet in the current connection event, the first data transmitting end setting at least one bit amongst reserved bits of the first first data packet in each connection event as the first flag. The embodiments of the present application improve the data communication monitoring stability.
The present application provides a node configuration method, a communication apparatus, and a communication system, which can achieve simple and efficient node configuration to establish a reliable and stable networking link. The node configuration method is used for a host to configure a plurality of nodes in a networking link, and the node configuration method comprises: the host sends a first configuration packet to a first node, so that a first PHY module and/or a second PHY module of the first node are/is a master device role(s) in a communication link; the host confirms, when the first PHY module of the first node is connected to a first PHY module of a second node, that the first node establishes a link with the second node; the host sends a third configuration packet to the second node, so that a second PHY module of the second node is a master device role in the communication link; and the host confirms, when the second PHY module of the second node is connected to a first PHY module of a third node, that the second node establishes a link with the third node.
A touch-control detection method, a touch-control chip (100), a touch-control detection system (10), and an electronic device. The touch-control detection method comprises: applying a driving signal to a touch-control sensor (200), wherein the driving signal comprises N first signal segments of equal length, the difference between initial phases of two adjacent first signal segments among the N first signal segments is a preset phase value, and the preset phase value is greater than 0 and less than or equal to π, N being an integer greater than or equal to 2; acquiring, from the touch-control sensor (200), a touch-control sensing signal corresponding to the driving signal, wherein the touch-control sensing signal comprises N second signal segments corresponding to the N first signal segments on a one-to-one basis; demodulating the N second signal segments by using a demodulation signal having a phase synchronized with the driving signal, so as to obtain N pieces of demodulated data corresponding to the N second signal segments; and performing accumulation processing on the N pieces of demodulated data to obtain a demodulation result of the touch-control sensing signal, so as to determine a touch-control detection result.
An electrode device (100), a sensor, and a method for manufacturing the electrode device (100). The electrode device (100) comprises: a flexible substrate (20) comprising a first plate portion (21) and a second plate portion (22) that are folded along a symmetry line (201) and coincide with each other; and an electrode structure (40), the electrode structure (40) comprising at least one first electrode (41) and at least one second electrode (42), wherein the at least one first electrode (41) is located on the side of the first plate portion (21) facing away from the second plate portion (22), and the at least one second electrode (42) is located on the side of the second plate portion (22) facing away from the first plate portion (21). By means of the embodiment, the manufacturing precision of the electrode device (100) can be improved, and the manufacturing difficulty of the electrode device (100) can be reduced.
An optical packaging chip and a manufacturing method therefor, and an electronic device. The optical packaging chip comprises: a packaging substrate; a plurality of dies, provided on one side of the packaging substrate and comprising at least one photosensitive die; a colloidal structure, connected to the packaging substrate and the sides of the plurality of bare chips away from the packaging substrate and comprising a light-transmitting portion covering the at least one photosensitive die; and a light-transmitting shielding plate, connected to the side of the colloidal structure away from the packaging substrate and grounded. According to the optical packaging chip and the manufacturing method therefor, the signal-to-noise ratio of the optical packaging chip can be improved.
H01L 23/552 - Protection against radiation, e.g. light
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer programs, downloadable; microprocessors; notebook
computers; computers; computer software, recorded; computer
peripheral devices; interactive touchscreen terminals;
tablet computers; data processing apparatus; integrated
circuit cards [smart cards]; computer programs, recorded;
chip cards; smart cards [integrated circuit cards]; smart
card readers; electronic tags for goods; computer software
for use in processing semiconductor wafers; handprint
checking machine; telephone exchange apparatus;
intercommunication apparatus; mobile telephones; network
communication devices; radio frequency receivers; radio
frequency transmitters; earphones; audio amplifiers;
biochips; integrated circuits; printed circuits; sensors;
electronic chips; chips [integrated circuits]; printed
circuit boards; electronic integrated circuits; resistances,
electric; biochip sensors; semiconductors; wafers for
integrated circuits; electronic semiconductors. Design of integrated circuits; design of optical components;
research in the field of semiconductor processing
technology; consultancy services in the field of
technological development; technological research; research
and development of new products for others; development of
circuit manufacturing technologies for wireless
communications, electronic data processing, consumer
electronics and automotive electronics; design and
development of computer hardware and software; consultancy
in the design and development of computer hardware; computer
hardware testing; design and development of computer
software; installation, repair and maintenance of computer
software; computer technology consultancy; design and
development of software in the field of mobile applications;
updating of smartphone software; electronic data storage;
apparatus and instruments functionality testing; design and
development of multimedia products.
26.
METHOD FOR MEASURING LENS PARAMETER AND DEVICE FOR MEASURING LENS PARAMETER
The present disclosure provides a method for measuring a lens parameter and a device for measuring a lens parameter. The measuring method includes: acquiring an imaged image of the at least single-sided test pattern of the measuring member formed by the imaging module; obtaining a central imaged image and an edge imaged image based on the imaged image, wherein the central imaged image and the edge imaged image are at least partially non-overlapping, and the central imaged image is closer to a center of the imaged image than the edge imaged image; acquiring a central imaging quality parameter based on the central imaged image, and acquiring an edge imaging quality parameter based on the edge imaged image; and determining the lens parameter of the to-be-measured lens based on the central imaging quality parameter and the edge imaging quality parameter.
Disclosed in the embodiments of the present application are an ultrasonic fingerprint module and an electronic device. The ultrasonic fingerprint module comprises an ultrasonic sensor and a circuit board, wherein the ultrasonic sensor comprises a base, and an acoustic layer and a first electrical connection area electrically connected to the acoustic layer are formed on the base; the circuit board comprises a substrate, and a second electrical connection area is formed on the substrate; a soldering layer is provided between the first electrical connection area and the second electrical connection area; and the first electrical connection area and the second electrical connection area are electrically connected by means of the soldering layer. In the present application, a first electrical connection area on an ultrasonic sensor and a second electrical connection area on a circuit board are electrically connected by means of a soldering layer; and compared with the method of using an ACF to realize an electrical connection, a soldering layer connection has better reliability and electrical connection performance, thereby helping to improve the overall reliability and performance of the ultrasonic fingerprint module.
Embodiments of the present disclosure provide a control method, a control apparatus, an electronic device, a storage medium, and a computer program product. The control method is used for an ultrasonic fingerprint sensor of a terminal device. The control method includes: determining whether the terminal device has entered an underwater operating mode; and determining, in response to the terminal device having entered the underwater operating mode, a target operating mode of the ultrasonic fingerprint sensor, and controlling the ultrasonic fingerprint sensor to enter the target operating mode for operation.
An optical sensing apparatus, a method for manufacturing an optical sensing apparatus, and an electronic device can improve the optical detection accuracy and user experience. The optical sensing apparatus includes: a sensor chip configured to receive an incident light signal for optical detection; and a transparent conductive layer provided above the sensor chip and connected to a grounding terminal of the sensor chip, where the transparent conductive layer is configured to be coupled with an electromagnetic wave in an environment, and transmit the electromagnetic wave to the grounding terminal of the sensor chip.
H10F 55/00 - Radiation-sensitive semiconductor devices covered by groups , or being structurally associated with electric light sources and electrically or optically coupled thereto
Embodiments of the present application provide a synchronization method, apparatus and system for data communication, applied to a data listening end. The method comprises: receiving a first data packet sent by a first data sending end at a first packet sending moment, the first data packet comprising a first Bluetooth clock of the first data sending end, and enabling the first data sending end to record a first packet sending completion moment of the first data packet; receiving a second data packet sent by the first data sending end, the second data packet comprising a difference between the first packet sending completion moment and the first packet sending moment; and on the basis of the received difference between the first packet sending completion moment and the first packet sending moment, and the first Bluetooth clock, obtaining an offset between the first data sending end and the data listening end, and on the basis of the offset, performing synchronization processing on the first data sending end and the data listening end in a preset period. The embodiments of the present application enhance the stability of data communication monitoring.
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Provided is a continuous blood glucose monitoring system, including a container shell, and a spring, a continuous blood glucose detection apparatus and a trigger structure which are arranged inside the container shell. One end of the spring is connected to an interior of the container shell, and the other end of the spring is connected to the continuous blood glucose detection apparatus. The trigger structure is arranged on a side edge of the interior of the container shell, a protruding portion is arranged on the trigger structure, which is unlockably locked with the continuous blood glucose detection apparatus. The continuous blood glucose detection apparatus includes: an apparatus shell and a circuit board arranged in the apparatus shell; a probe assembly being connected to the circuit board; and a pressure detection sensor connected to the circuit board, which being configured to detect a pressure change signal on the apparatus shell.
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
32.
DATA COMMUNICATION MONITORING METHOD, APPARATUS, AND SYSTEM
Embodiments of the present application provide a data communication monitoring method, apparatus, and system, applied to a first data sending end. The method comprises: sending at least one first data packet, wherein the at least one first data packet and at least one second data packet sent by a second data sending end are separately sent by means of a first access address; and when the current connection event ends, sending a third data packet by means of a second access address, wherein the third data packet is used for enabling a data monitoring end to determine a sender of the received first data packet of the current connection event on the basis of the payload of the third data packet, wherein the second access address, a packet sending moment of the third data packet, and the payload of the third data packet are configured by the first data sending end. According to the embodiments of the present application, the stability of data communication monitoring is improved.
Provided in the embodiments of the present application are an optical fingerprint recognition module and apparatus, and an electronic device. The optical fingerprint recognition module is arranged on a first printed circuit board under a cover plate, and an upper surface of the cover plate is provided with a fingerprint imaging region. The optical fingerprint recognition module comprises: an optical lens, which is arranged under the cover plate and corresponds to the fingerprint imaging region, wherein the optical lens is used for converging fingerprint detection signals, which are formed by means of a through hole of a light guide element, the light guide element is used for making light, which is emitted by a light source, uniformly irradiate onto a human finger in the fingerprint imaging area after the light is scattered, and making the light reflected by the human finger to form reflected light, and the reflected light is transmitted through the cover plate in the fingerprint imaging region, and forms the fingerprint detection signals by means of the through hole; and an optical sensor, which is arranged on the first printed circuit board and is located under the optical lens, wherein the optical sensor is used for receiving the fingerprint detection signals converged by the optical lens, and the fingerprint detection signals are used for detecting fingerprint information of the human finger.
Provided in the embodiments of the present application are a fingerprint module and an electronic device. The fingerprint module comprises an ultrasonic sensor which comprises a substrate, an acoustic layer, a first electrode layer and a protective layer, a second electrode layer being provided on the substrate, one side of the acoustic layer being electrically connected to the second electrode layer, the other side of the acoustic layer being electrically connected to one side of the first electrode layer, and the protective layer covering the other side of the first electrode layer; a first electric connection area is provided on the substrate, the first electrode layer and the second electrode layer being electrically connected to the first electric connection area separately; a second electric connection area is provided on a circuit board, the first electric connection area being electrically connected to the second electric connection area by means of a conductive bonding layer; the circuit board is electrically connected to a processing unit outside the fingerprint module, the acoustic layer is used for transmitting an ultrasonic signal and receiving an ultrasonic signal reflected by an external structure, and the ultrasonic sensor is used for converting the ultrasonic signal received by the acoustic layer into an electric signal and sending the electric signal to the processing unit by means of the circuit board. The fingerprint module has relatively high applicability.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer programs, downloadable; microprocessors; notebook
computers; computers; computer software, recorded; computer
peripheral devices; interactive touchscreen terminals;
tablet computers; data processing apparatus; integrated
circuit cards [smart cards]; computer programs, recorded;
chip cards; smart cards [integrated circuit cards]; smart
card readers; electronic tags for goods; computer software
for use in processing semiconductor wafers; handprints
testing machine; telephone exchange apparatus;
intercommunication apparatus; mobile telephones; network
communication devices; radio frequency receivers; radio
frequency transmitters; earphones; audio amplifiers;
biochips; integrated circuits; printed circuits; sensors;
electronic chips; chips [integrated circuits]; printed
circuit boards; electronic integrated circuits; resistances,
electric; biochip sensors. Design of integrated circuits; design of optical components;
research in the field of semiconductor processing
technology; consultancy services in the field of
technological development; technological research; research
and development of new products for others; development of
circuit manufacturing technologies for wireless
communications, electronic data processing, consumer
electronics and automotive electronics; design and
development of computer hardware and software; consultancy
in the design and development of computer hardware; computer
hardware testing; design and development of computer
software; installation, repair and maintenance of computer
software; computer technology consultancy; design and
development of software in the field of mobile applications;
updating of smartphone software; electronic data storage.
36.
DATA TRANSMISSION METHOD, CHIP, AND STORAGE MEDIUM
Embodiments of the present application relate to the technical field of electronic communications, and provide a data transmission method, a chip, and a storage medium. The data transmission method is applied to a target node, and the method comprises: obtaining a first data packet transmitted at a physical layer; and on the basis of a physical transmission medium configured to connect a first interface of the target node and a second interface of a downstream node, sending the first data packet to the physical layer of the downstream node by means of the physical layer of the target node. Transmission of the first data packet in the present solution is performed at the physical layer, and data to be transmitted in the first data packet accounts for a large proportion, so that the bandwidth utilization rate of the target node for data transmission is increased. In addition, the first data packet is directly transmitted to the downstream node by means of the physical layer of the target node, no switches are needed for the transmission, and therefore complex encapsulation by means of an MCU of the target node does not need to be performed. Therefore, the transmission latency of data transmission by the target node can be reduced and the transmission efficiency can be improved.
The present application provides a chip, a networking system and an electronic device. The chip is used for a target node of a networking system to realize data transmission, wherein the networking system comprises a plurality of connected nodes, and the target node is any one of the plurality of nodes. The chip comprises a data scheduling unit and at least one data transmission unit, wherein the data scheduling unit is used for obtaining a data packet and processing the data packet on the basis of a physical layer; and the at least one data transmission unit is used for receiving the data packet on the basis of the physical layer and transmitting the data packet to the data scheduling unit for processing, and/or, transmitting, on the basis of the physical layer, the data packet processed by the data scheduling unit to a node adjacent to the target node in the networking system.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
38.
DATA FORWARDING METHOD, CHIP, AND ELECTRONIC DEVICE
The present application provides a data forwarding method, a physical layer chip, and an electronic device, capable of achieving high-rate, high-bandwidth, high-precision and low-latency data transmission. The data forwarding method is used for physical layer devices of child nodes in networking transmission, the networking comprises a head node and multiple child nodes, the head node is connected to the multiple child nodes by means of a physical transmission medium, and each child node further comprises a transmission processing device. The forwarding method comprises: a physical layer device comprising a first branch, and by means of a physical transmission medium, the first branch receiving a first downlink signal sent by a head node or a previous adjacent child node; the physical layer device comprising a forwarding module and a second branch, and by means of the forwarding module, the first branch enabling the second branch to acquire the first downlink signal; and the second branch sending the first downlink signal to a next adjacent child node by means of the physical transmission medium.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
A touchpad (1) and an electronic device (3), capable of achieving full-area press of the touchpad (1) and providing a short press actuation travel. The touchpad (1) comprises: a first touch module (10), arranged on the left side of the touchpad (1), the first touch module (10) comprising a first travel switch (101); a second touch module (20), arranged on the right side of the touchpad (1), the second touch module (20) comprising a second travel switch (301); a flexible printed circuit (600), used for electrically connecting the first touch module (10) and the second touch module (20); and a fixed platform (500), arranged below the first touch module (10) and the second touch module (20) and provided with a fist contact (501) and a second contact (502). When the first touch module (10) is pressed by a user, the first contact (501) on the fixed platform (500) triggers the first travel switch (101), or when the second touch module (20) is pressed by the user, the second contact (502) on the fixed platform (500) triggers the second travel switch (301).
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G06F 1/16 - Constructional details or arrangements
40.
DATA TRANSMISSION METHOD, AND CHIP AND STORAGE MEDIUM
The embodiments of the present application relate to the field of data processing, and particularly relate to a data transmission method, and a chip and a storage medium. The method is applied to a target node, and comprises: during the reception of a target data packet, receiving indication data comprised in any target data group among at least one data group comprised in the target data packet, and then determining whether the indication data meets a matching condition; if the indication data meets the matching condition, updating the target data group; and if the indication data does not meet the matching condition, normally receiving the target data group. In the solution, it is only necessary for a target node to succeed in caching indication data, such that whether a target data group is to be updated can be determined; and after it is determined that the target data group is to be updated, the target data group is updated during the reception of a target data packet, without it being necessary to cache data other than the indication data, such that data transmission can be quickly and efficiently performed on the basis of the target node, thereby reducing the time delay when data transmission is performed on the basis of the target node.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
A continuous glucose monitor, comprising a housing and a circuit board arranged in the housing, wherein an electronic component is carried on the circuit board; a probe assembly configured to penetrate skin and connected to the circuit board; and an auxiliary sensor connected to the circuit board and configured to detect a compressed state of the continuous glucose monitor. The continuous glucose monitor provided in the present disclosure can identify its own compressed state, thereby improving the accuracy of glucose measurement.
XYY in a second direction of the display screen, and the first direction of the display screen is perpendicular to the second direction of the display screen; and the angle setting range of the deflection angle of the first direction of the optical sensor relative to the first direction of the display screen is formula (I) or formula (II) or formula (III) or formula (IV). In this way, the deflection angle between the optical sensor and the display screen can be adjusted, so that the frequency distribution of the screen structure in the frequency domain is changed, thereby reducing the moire pattern risk.
The present disclosure provides an ambient light sensor and an electronic device. The ambient light sensor includes: a light filter unit array including a red filter unit, a green filter unit, and a blue filter unit; and a pixel unit array located below the light filter unit array and including a plurality of pixel units, the plurality of pixel units being configured to receive a light signal of ambient light after passing through the display screen and the light filter unit array; the number of blue filter units is larger than the number of red filter units, and a gravity center of a pattern formed by the red filter unit, a gravity center of a pattern formed by the green filter unit, and a gravity center of a pattern formed by the blue filter unit among the plurality of light filter units coincide with each other.
A display apparatus and an electronic device. The display apparatus (100) comprises a display screen (101). The display screen (101) comprises an optical detection module (102), which is disposed below the display screen (101), wherein a receiving end (1021) of the optical detection module (102) is used for receiving an incident light signal; and a transparent conductive film (103), which is disposed between the receiving end (1021) and the display screen (101) and is connected to a grounding end of the display apparatus (100). The transparent conductive film (103) can couple electromagnetic waves below the display screen (101) or in the environment and transmit the electromagnetic waves to the grounding end of the display apparatus (100), thereby blocking interference signals, and thus improving the signal-to-noise ratio of the display apparatus (100).
G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
45.
BIOLOGICAL FEATURE DETECTION APPARATUS AND ELECTRONIC DEVICE
Provided in the embodiments of the present application are a biological feature detection apparatus and an electronic device. The biological feature detection apparatus comprises an ultrasonic detection module and a touch assembly, wherein the ultrasonic detection module is used for detecting a biological feature signal through the touch assembly and sending the biological feature signal to a processing unit, so that the processing unit performs fingerprint inspection and/or heart rate measurement according to the biological feature signal; and the distance between an ultrasonic transceiving plane in the ultrasonic detection module and a finger contact surface on the touch assembly is less than or equal to 2 mm. The solution can improve the design freedom degree of electronic devices having the requirements for fingerprint inspection and heart rate measurement.
Embodiments of the present application provide an ultrasonic fingerprint recognition apparatus and an electronic device. The recognition apparatus is arranged on a side middle frame of the electronic device to implement ultrasonic fingerprint recognition. The side middle frame is provided with a mechanical press-key or a hidden press-key. The ultrasonic fingerprint recognition apparatus comprises an ultrasonic fingerprint sensor chip, a flexible circuit board, and a bonding wire. The ultrasonic fingerprint sensor chip is attached to the inner surface of a cover plate of the mechanical press-key or the inner surface of the middle frame where the hidden press-key is located. The ultrasonic fingerprint sensor chip is used for sending an ultrasonic signal to a finger, the finger presses the outer surface of the cover plate or the hidden press-key, and the ultrasonic fingerprint sensor chip receives an ultrasonic fingerprint signal returned by the finger. The ultrasonic fingerprint sensor chip is electrically connected to the flexible circuit board by means of the bonding wire, and the ultrasonic fingerprint sensor chip is connected to a motherboard of the electronic device by means of a wire of the flexible circuit board.
The present application relates to an electronic device and an ultrasonic fingerprint recognition apparatus. The electronic device comprises: a middle frame assembly arranged in a circumferential direction; and an ultrasonic detection module, mounted in the middle frame assembly and used for detecting fingerprint information. By means of such design, a side fingerprint detection function of the electronic device can be achieved, and the ultrasonic detection module detects a fingerprint by means of an ultrasonic signal. Because the ultrasonic signal has good penetration, the high detection precision is achieved, and the actual use requirements are better met.
A Bluetooth ranging method and system, and a chip, which can reduce the ranging complexity and improve the bandwidth and ranging accuracy. The method is applied to a central device in a ranging terminal. The ranging terminal further comprises multiple anchor devices. The method comprises: the central device establishing a Bluetooth connection with at least one mobile terminal, and the central device establishing a connection with each of the multiple anchor devices and completing clock synchronization with the multiple anchor devices; the central device interacting with the at least one mobile terminal, such that the central device acquires a CS parameter and a time parameter; the central device sending the CS parameter and the time parameter to each of the multiple anchor devices; the central device receiving identification information sent by each anchor device, wherein the identification information is used for indicating that the anchor device has received the CS parameter and the time parameter; and the central device receiving first ranging information sent by each anchor device and second ranging information sent by the mobile terminal.
H04W 4/02 - Services making use of location information
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
H04W 76/15 - Setup of multiple wireless link connections
The present application provides a lens parameter measurement method and measurement device. The measurement method is applied to a lens module. A measurement member is arranged on an object side of a lens to be measured in the lens module. The measurement member is provided with at least one single-sided test pattern. An imaging module is arranged on an image side of said lens. The method comprises: acquiring an imaging image of an imaging module for at least one single-sided test pattern of a measurement member; obtaining a central imaging image and an edge imaging image on the basis of the imaging image, wherein the central imaging image and the edge imaging image are at least partially not overlapped, and the central imaging image is closer to the center of the imaging image than the edge imaging image; acquiring a central imaging quality parameter on the basis of the central imaging image, and acquiring an edge imaging quality parameter on the basis of the edge imaging image; and on the basis of the central imaging quality parameter and the edge imaging quality parameter, determining lens parameters of said lens. By means of the technical solution, the lens parameters can be accurately measured by utilizing the difference between the imaging quality parameters of the central imaging image and the edge imaging image.
A method, a device and an electronic equipment for determining the drop depth of screen leakage light, the method comprising: obtaining a sampling data based on a vertical synchronization signal; determining a first sampling sequence, as well as a second sampling sequence and/or a third sampling sequence based on the sampling data, the first sampling sequence is the sampling sequence of the drop zone of the screen leakage light drop waveform, the second sampling sequence is the sampling sequence on the left side of the drop zone of the screen leakage light drop waveform, and the third sampling sequence is the sampling sequence on the right side of the drop zone of the screen leakage light drop waveform; determining the drop depth based on the first sampling sequence, as well as the second sampling sequence and/or the third sampling sequence.
A biometric information measurement apparatus, comprising a finger sleeve, a pulse wave sensor, an analog front end, and a microcontroller unit. The finger sleeve comprises a mechanical structure or an air bag. The pulse wave sensor comprises a light emitter and a photodiode. The analog front end is electrically connected to the pulse wave sensor, and the analog front end is used for receiving an electrical signal and outputting an analog front end signal. The microcontroller unit is electrically connected to the analog front end, and the microcontroller unit is used for receiving the analog front end signal and outputting biometric information, said biometric information comprising a blood pressure value. The described biometric information measurement apparatus realizes the miniaturization of blood pressure measurement apparatuses, is convenient for users to carry around, and enables users to monitor blood pressure in a non-home environment.
Disclosed herein is an apparatus for detecting biometric information, including a finger stall, a pulse wave sensor, an analog front end, and a microcontroller unit. The finger stall includes a mechanical structure or a gasbag. The pulse wave sensor includes a light emitter and a photodiode. The analog front end is electrically connected to the pulse wave sensor, and is configured to receive an electrical signal and output an analog front end signal. The microcontroller unit is electrically connected to the analog front end, and is configured to receive the analog front end signal and output the biometric information, the biometric information including a blood pressure value. The apparatus for detecting biometric information can enable a miniaturization of a blood pressure measuring apparatus, facilitate offering portability for users, and achieve blood pressure monitoring for the users in a non-household environment.
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
53.
METHOD FOR DETECTING COLOR TEMPERATURE, APPARATUS FOR DETECTING COLOR TEMPERATURE, AND ELECTRONIC DEVICE
Provided is a method and apparatus for detecting a color temperature, and an electronic device, which can accurately detect a color temperature of a light source. The method includes: determining, based on multi-channel data of a to-be-tested light source and multi-channel data of a first standard light source group, proportional coefficients corresponding to the first standard light source group, where the proportional coefficients corresponding to the first standard light source group is used to represent a ratio between multi-channel data of each standard light source in the first standard light source group and the multi-channel data of the to-be-tested light source; determining a tristimulus value of the to-be-tested light source based on the multi-channel data of the first standard light source group and the proportional coefficients corresponding to the first standard light source group; and determining a color temperature of the to-be-tested light source based on the tristimulus value.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer programs, downloadable; microprocessors; notebook computers; computers; computer software, recorded; computer peripheral devices; interactive touchscreen terminals; tablet computers; data processing apparatus; integrated circuit cards [smart cards]; computer programs, recorded; chip cards; smart cards [integrated circuit cards]; smart card readers; electronic tags for goods; computer software for use in processing semiconductor wafers; handprint checking machine; telephone exchange apparatus; intercommunication apparatus; mobile telephones; network communication devices; radio frequency receivers; radio frequency transmitters; earphones; audio amplifiers; biochips; integrated circuits; printed circuits; sensors; electronic chips; chips [integrated circuits]; printed circuit boards; electronic integrated circuits; resistances, electric; biochip sensors; semiconductors; wafers for integrated circuits; electronic semiconductors. Design of integrated circuits; design of optical components; research in the field of semiconductor processing technology; consultancy services in the field of technological development; technological research; research and development of new products for others; development of circuit manufacturing technologies for wireless communications, electronic data processing, consumer electronics and automotive electronics; design and development of computer hardware and software; consultancy in the design and development of computer hardware; computer hardware testing; design and development of computer software; installation, repair and maintenance of computer software; computer technology consultancy; design and development of software in the field of mobile applications; updating of smartphone software; electronic data storage; apparatus and instruments functionality testing; design and development of multimedia products.
55.
OPTICAL SENSING DEVICE, PREPARATION METHOD AND ELECTRONIC DEVICE
An optical sensing device, a preparation method and an electronic device, capable of improving the accuracy of optical detection and the user experience. The optical sensing device comprises: a sensor chip, used for receiving an incident light signal for optical detection; and a transparent conductive layer, arranged above the sensor chip and connected to a grounding end of the sensor chip, wherein the transparent conductive layer is used for coupling electromagnetic waves in the environment and transmitting the electromagnetic waves to the grounding end of the sensor chip.
A lens system (200), an optical fingerprint apparatus (300) and an electronic device (400). The lens system (200) comprises: a first lens (210), a second lens (220) and a third lens (230) that are provided in sequence from an object side to an image side, wherein the first lens (210) is a lens having negative focal power, and the first lens (210) has a concave surface facing the object side and a concave surface facing the image side; the second lens (220) is a lens having positive focal power, and the second lens (220) has a convex surface facing the object side and a convex surface facing the image side; and the third lens (230) is a lens having positive focal power, and the third lens (230) has a convex surface facing the object side. The maximum image height Y', the focal length f and the optical length CTL of the lens system (200) on the imaging surface satisfy 1.25<|Y'/(f*CTL)|<1.45, wherein the optical length CTL is the distance from the surface of the first lens (210) facing the object side to the imaging surface. By designing the maximum image height Y', the focal length f and the optical length CTL of the lens system (200) on the imaging surface to satisfy 1.25<|Y'/(f*CTL)|<1.45, while reducing the overall thickness of the lens system (200), it can be ensured that the lens system (200) has better imaging quality.
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only
57.
FILTERING METHOD, FILTER APPARATUS, CHIP, AND EARPHONE
The present application provides a filtering method, a filter apparatus, a chip, and an earphone, which are capable of improving the transparency effect of the earphone. The earphone comprises an extra-aural microphone, sound signals collected by the extra-aural microphone comprising signals of a first frequency band and signals of a second frequency band, and the first frequency band being lower than the second frequency band. The method comprises: processing a sound signal on the basis of a first transparent filter so as to obtain a first filtered signal of the sound signal, wherein the first transparent filter causes a greater gain in a signal of a first frequency band than in a signal of a second frequency band; performing noise reduction processing on the sound signal, and on the basis of a second transparent filter, processing the noise-reduced sound signal so as to obtain a second filtered signal of the sound signal, wherein the second transparent filter causes a greater gain in a signal of the second frequency band than in a signal of the first frequency band; and according to the first filtered signal and the second filtered signal, determining a compensation signal for the earphone.
Embodiments of the present application provide a touch detection method, a touch detection apparatus, and an electronic device. The touch detection method is applied to a button touch apparatus, and the button touch apparatus comprises a plurality of touch buttons. The touch detection method comprises: sending a first coding signal to a first touch button in a plurality of touch buttons; when the first coding signal is sent to the first touch button, sending a second coding signal to a second touch button in the plurality of touch buttons, wherein the second coding signal and the first coding signal are inverted to each other; receiving a first sensing signal generated by the first touch button on the basis of the first coding signal and a second sensing signal generated by the second touch button on the basis of the second coding signal; and performing touch detection on the basis of the first sensing signal and the second sensing signal. By means of the technical solution, the EMI margin and performance of the button touch apparatus can be effectively improved.
Embodiments of the present application provide a touch detection method, a touch detection apparatus, and an electronic device. The touch detection method comprises: sending a coding signal to a touch sensing apparatus; receiving a sensing signal generated by the touch sensing apparatus on the basis of the coding signal; and performing touch detection on the basis of the sensing signal, wherein a fundamental frequency of the coding signal is outside a preset frequency range, at least one of a third harmonic frequency and a fifth harmonic frequency of the coding signal is outside the preset frequency range, and the preset frequency range is related to EMI performance of the touch sensing apparatus. By means of the technical solution, the fundamental frequency of the coding signal, and at least one of the third harmonic frequency and the fifth harmonic frequency of the coding signal are designed outside the preset frequency range related to the EMI performance of the touch sensing apparatus, so that the EMI effect caused by the coding signal can be reduced, and the EMI performance of the touch sensing apparatus and of the electronic device where the touch sensing apparatus is located are improved.
The invention discloses a method for processing image data provided by an image sensor, the image data comprising an array of pixels, wherein the method comprises the steps of:
a) Determining the respective local brightness difference between a selected pixel and a set of pixels located adjacent to the respective pixel and assigned to the same colour of the respective pixel; and
b) Identifying the selected pixel as a defect pixel when the local brightness difference for the selected pixel exceeds an upper threshold value and/or is less than an lower threshold value, and when the local brightness difference for the selected pixel exceeds an weighted maximum local brightness difference determined for the set of pixels located adjacent to the selected pixels and/or is less than an weighted minimum local brightness difference determined for the set of pixels located adjacent to the selected pixel.
H04N 25/683 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects by defect estimation performed on the scene signal, e.g. real time or on the fly detection
61.
SELF-CAPACITOR SENSING USING ALTERNATING-CURRENT-MODE BRIDGE FOR CAPACITIVE TOUCH PANELS
Techniques are described for using an alternating-current-mode (AC-mode) bridge for low-noise self-capacitor sensing in a capacitive touch panel array integrated with a display panel. Each channel of the array has a self-capacitance that changes responsive to presence or absence of a local touch event local. Pairs of channels are read out differentially by coupling pairs of channels to branches of an AC-mode bridge. The AC-mode bridge includes current sources that driveeach branch with a sinusoidal current, manifesting a branch voltage on each branch based on the self-capacitance of the branch. The branch voltages are used to generate an output voltage.The sinusoidal current is controlled by comparing a driver signal with feedback from the branches, so that common-mode noise on the channels becomes a common-mode component of the sinusoidal currents and is rejected in the generation of the output voltage.
G06F 3/045 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
62.
FINGERPRINT RECOGNITION APPARATUS AND ELECTRONIC DEVICE
Provided in the embodiments of the present application are a fingerprint recognition apparatus and an electronic device. The fingerprint recognition apparatus is configured to be arranged below a display screen of an electronic device, so as to realize under-screen optical fingerprint recognition. The fingerprint recognition apparatus comprises: a plurality of fingerprint recognition units distributed in an array, each fingerprint recognition unit comprising a microlens, at least two light-blocking layers and a plurality of pixel units, wherein light-passing small holes in the at least two light-blocking layers form a plurality of light guide channels corresponding to the plurality of pixel units, and the plurality of pixel units are correspondingly arranged below the plurality of light guide channels on a one-to-one basis; and the plurality of light guide channels comprise a first light guide channel and a second light guide channel, the included angle between the direction of the first light guide channel and a first direction is a first included angle, and the included angle between the direction of the second light guide channel and the first direction is a second included angle, the first included angle being different from the second included angle, and the first direction being the normal direction of the plane where the plurality of pixel units are located. The fingerprint recognition apparatus can realize high fingerprint recognition performance.
The embodiments of the present application provide a signal amplification circuit, a touch-control chip and an electronic device. The signal amplification circuit is applied to a touch screen comprising detection electrodes, and is configured to perform amplification processing on detection signals of the detection electrodes. The signal amplification circuit comprises: a plurality of first-stage operational amplifiers, input ends of which are configured to be connected to the detection electrodes, and output ends of which output amplified signals; a plurality of second-stage operational amplifiers, input ends of which are configured to be connected to the output ends of the first-stage operational amplifiers; an averaging circuit, which is configured to obtain an average voltage of the amplified signals outputted by the plurality of first-stage operational amplifiers; and a feedforward circuit. The feedforward circuit generates a feedforward signal according to the average voltage and provides the feedforward signal for the input ends of the second-stage operational amplifiers. The feedforward circuit reduces the impact of public noise on the signal amplification circuit.
Embodiments of the present application provide a signal amplification circuit, a touch chip, and an electronic device. The signal amplification circuit is applied to a touch screen comprising a plurality of detection electrodes. The signal amplification circuit comprises: a plurality of detection operational amplifiers and a feedback circuit. A first input end of each detection operational amplifier is connected to a corresponding detection electrode, a second input end is connected to a common mode voltage, a first output end outputs a first amplification signal, and a second output end outputs a second amplification signal. The feedback circuit generates a feedback signal according to the first amplification signals and the second amplification signals of the plurality of detection operational amplifiers, and provides the feedback signal to the first input ends of the detection operational amplifiers. The feedback circuit reduces the impact of noise on the signal amplification circuit.
Provided in the present application are a near-field communication apparatus and an electronic device, which can improve the near-field communication performance. The NFC apparatus comprises: an NFC chip, comprising a first transmitting end and a second transmitting end, the first transmitting end being used for outputting a first transmitted signal, and the second transmitting end being used for outputting a second transmitted signal; a first impedance matching circuit, connected between the first transmitting end and a first antenna, the first impedance matching circuit being used for regulating the impedance of the first antenna and the first impedance matching circuit, receiving the first transmitted signal and outputting a first excitation signal to the first antenna; and a second impedance matching circuit, connected between the second transmitting end and a second antenna, the second impedance matching circuit being used for regulating the impedance of the second antenna and the second impedance matching circuit, receiving the second transmitted signal and outputting a second excitation signal to the second antenna.
A touchpad includes a touch assembly and a support assembly. The touch assembly is disposed on the support assembly. The support assembly includes: a main support component, disposed at an edge of a bottom surface of the touch assembly; a fixed platform, on which a boss is integrally formed; and first and second elastic components, where the first and second elastic components are symmetrically connected to the main support component along a plane in which the main support component is located, an opening for accommodating the fixed platform is formed between the first and second elastic components, the fixed platform is connected between the first and second elastic components, and the support assembly has a sheet-like structure; and a travel switch is disposed on the bottom surface of the touch assembly, and the boss is configured to touch and trigger the travel switch when the touch assembly is pressed.
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
G06F 1/16 - Constructional details or arrangements
67.
DRIVING CIRCUIT, TOUCH DRIVING APPARATUS, AND ELECTRONIC DEVICE
Embodiments of the present application provide a driving circuit, a touch driving apparatus, and an electronic device. The driving circuit is applied to a touch screen comprising a driving electrode. The driving circuit comprises a first node, a second node, a ground node, a switching circuit, and an energy storage capacitor. The first node is used for providing a first positive voltage. The second node is used for providing a first negative voltage. The energy storage capacitor comprises a first end and a second end. The switching circuit is used for controlling the first end of the energy storage capacitor to be selectively connected to the ground node or the driving electrode, and controlling the second end of the energy storage capacitor to be selectively connected to the ground node or the driving electrode. In a period of time, the first end of the energy storage capacitor receives charges released by the driving electrode. In another period of time, the second end of the energy storage capacitor charges the driving electrode by using the stored charges. The driving circuit has relatively low driving power consumption.
A pressure touch pad, a pressure touch pad assembly, and an electronic device are provided. The pressure touch pad includes a printed circuit board, a pressure sensor, a pressure sensor bracket, and a touch controller. The printed circuit board is stacked on the pressure sensor bracket, a touch electrode layer is provided on the printed circuit board, the touch electrode layer is configured to output a touch sensing signal when a finger touches the touch pad; the pressure sensor is configured to deform and output a pressure sensing signal when the finger presses the pressure touch pad; and the pressure sensor bracket includes a reinforced region, a non-reinforced region, and a flexible arm, the reinforced region is fixedly connected to the printed circuit board, the non-reinforced region is fixedly connected to an outer case, and the flexible arm is connected to the reinforced region and the non-reinforced region.
The present patent application discloses a touch detection circuit and method, a touch chip, and a display device. The circuit comprises: a driving circuit, used for providing a touch driving signal for a driving electrode in a touch sensor; differential operational amplifier modules, used for receiving a signal outputted by a sensing electrode in the touch sensor and performing differential operation on the signal outputted by the sensing electrode and a signal outputted by a common electrode in the touch sensor, the common electrode being one of sensing electrodes in the touch sensor; and a touch detection module, used for calculating a touch position according to differential operation results of the differential operational amplifier modules. According to the present application, differential operation is performed according to the sensing electrode and the common electrode, so that the noise of a display is eliminated as a common mode component, the impact of the noise interference of the display on touch detection is greatly inhibited, and the touch performance is significantly optimized.
Embodiments of the present invention provide a driving circuit, a touch chip, and an electronic device. The driving circuit is applied to a touch screen, and the touch screen comprises a driving electrode. The driving circuit comprises a first end, an output end, and a plurality of first charging switches. The first end is used for providing a first target voltage and is used for charging the driving electrode to the first target voltage. The output end is connected to the driving electrode. The plurality of first charging switches are connected in parallel between the first end and the output end. In the process of charging the driving electrode to the first target voltage, the number of turned-on first charging switches is gradually increased, and the driving impedance of the driving circuit is gradually reduced. The driving impedance of the driving circuit is dynamically adjusted by adjusting the number of turned-on first charging switches, such that the voltage change rate of the driving electrode is not too large, thereby avoiding the influence of the voltage of the driving electrode on a display screen.
Techniques are described for touch event sensing in a capacitive touch panel that is integrated with a display. In some such environments, a large amount of display noise is capacitively coupled with the touch sensing signals. This can degrade performance of conventional sensing approaches, which tend to use a buffering stage followed by a difference amplifier stage. Embodiments provide a single-stage, differential-difference-amplifier-based touch event sensing approach that pre-cancels coupled display noise from adjacent channels by common-mode rejection prior to amplifying, thereby generating amplified differential output signals that include substantially only the desired touch sensing information.
The embodiments of the present invention provide a touch apparatus, a touch panel, and an electronic device. The touch apparatus is arranged below a cover plate to form a touch panel, wherein the touch apparatus comprises: a travel switch, arranged below a central area of the cover plate; a frame-shaped reinforcing part, arranged below an edge area of the cover plate; multiple linkage structural parts, connected to the frame-shaped reinforcing part by means of a rotatable connecting part, so that the multiple linkage structural parts can rotate around the frame-shaped reinforcing part; a fixing platform, arranged below the multiple linkage structural parts and supporting the multiple linkage structural parts by means of multiple fulcrums; when the cover plate is pressed, the cover plate drives the travel switch and the multiple linkage structural parts to move, so that the multiple linkage structural parts trigger the travel switch to detect pressing on the cover plate. By means of using the touch apparatus provided by the embodiments of the present invention, full-domain pressing of the touch panel can be effectively realized, thereby improving user experience.
12122＜-2.61. The design of the surface profiles and distribution of the focal power of the two lenses (210, 220) in the lens system (200) enables the lens system (200) to achieve high imaging quality. Therefore, the lens system (200) has low cost, low structural complexity, and small size while having high imaging quality, thus facilitating the popularization and use of the lens system (200) in fingerprint imaging apparatuses or other imaging apparatuses.
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
The present application provides a lens system, a fingerprint recognition apparatus, and a terminal device. The lens system comprises: a first lens and a second lens that are successively arranged from an object side to an image side; the first lens is a lens having negative focal power, the first lens has a concave surface facing the object side and a convex surface facing the image side, and at least one surface of the first lens is an aspheric surface; and the second lens is a lens having positive focal power, the second lens has a convex surface facing the image side, and at least one surface of the second lens is an aspheric surface. The maximum image height Y', the focal length f, and the optical length CTL of the lens system on an imaging surface satisfy: 0.85<|Y'/(f*CTL)|<1.32, wherein the optical length CTL represents the distance from the surface of the first lens facing the object side to the imaging surface. By means of the technical solution, the surface types of two lenses and the relationship of the maximum image height Y', the focal length f, and the optical length CTL in the lens system are designed, such that the lens system has excellent imaging quality and takes into account the overall thickness of the lens system.
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
75.
ULTRASONIC DETECTION APPARATUS AND ELECTRONIC DEVICE
The present application provides an ultrasonic detection apparatus and an electronic device. The turn-off control of a boost circuit of a signal generation chip is realized for an ultrasonic detection apparatus having a double-chip structure. The ultrasonic detection apparatus comprises a signal generation chip and an ultrasonic sensor chip, wherein the ultrasonic sensor chip comprises an ultrasonic transducer and a control module, and the signal generation chip comprises a boost circuit and a switch circuit; the switch circuit is used for outputting a first excitation pulse signal under the action of a first excitation signal output by the boost circuit, so as to drive the ultrasonic transducer to transmit an ultrasonic signal; and the control module is used for generating a first synchronization signal, so as to control the boost circuit to output the first excitation signal on the basis of the first synchronization signal. The controllability of the first excitation signal output by the signal generation chip is improved, and by effectively controlling the first excitation signal, the noise in echo signals collected by the ultrasonic transducer is reduced, and the detection accuracy is improved.
Embodiments of the present application provide a capacitance measurement circuit, a touch display apparatus, and an electronic device. The capacitance measurement circuit is applied to a touch display apparatus comprising a measurement electrode and a cathode. The capacitance measurement circuit comprises a measurement channel, a reference channel, and a signal adjustment module. The measurement channel is configured to receive a capacitance measurement signal outputted by the measurement electrode and output the capacitance measurement signal to the signal adjustment module. The reference channel is configured to receive an interference signal outputted by the cathode and output the interference signal to the signal adjustment module. The signal adjustment module is configured to amplify the capacitance measurement signal, amplify the interference signal on the basis of a historical denoising capacitance measurement signal, such that the amplified interference signal matches a noise signal in the amplified capacitance measurement signal, and then differentiate the amplified interference signal and the amplified capacitance measurement signal to output a denoising capacitance measurement signal, such that noise reduction processing is performed on the noise signal in the amplified capacitance measurement signal.
G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
77.
ULTRA-WIDEBAND RANGING METHOD, APPARATUS, AND SYSTEM
An ultra-wideband ranging method, an apparatus, and a system. The method is applied in a first ultra-wideband (UWB) module in a first electronic device, the first UWB module is used for implementing ranging with a plurality of second electronic devices, and the ultra-wideband ranging method comprises: determining that the plurality of second electronic devices are more than a preset number X (S210); dividing the plurality of second electronic devices into N groups (S220), where the number of second electronic devices in each group of second electronic devices is less than or equal to X, X and N being positive integers; within a single ranging time period, sequentially sending a ranging control message (RCM) to the N groups of electronic devices (S231, S232); and sequentially executing ranging communication with each group of second electronic devices among the N groups of second electronic devices according to the N RCMs, so as to obtain the distance from each group of second electronic devices (S241, S242). The present method has high ranging capacity.
Embodiments of the present application provide an ultra-wideband ranging method, an apparatus, and a system. The ultra-wideband ranging method is applied to a first ultra-wideband (UWB) module in a first electronic device, and the ultra-wideband ranging method comprises: in a first ranging time period, executing a single round of ranging communication with a plurality of second electronic devices to obtain initial distances from the second electronic devices; and in a second ranging time period, given that the initial distance from a target electronic device among the plurality of second electronic devices is less than or equal to a preset threshold, repeatedly performing ranging communication with the target electronic device to repeatedly obtain real-time distances from the target electronic device, wherein the duration of the first ranging time period is equal to the duration of the second ranging time period. According to the present solution, the first electronic device has a high rate of ranging with the target electronic device during the second ranging time period, and ranging precision can be improved, so as to improve UWB ranging performance.
The present disclosure provides a method for wireless communication, which is applicable to wireless communication between the active pen and the plurality of touch screens, the plurality of touch screens respectively correspond to a plurality of wireless channels, a respective wireless channel is used for wireless communication between a touch screen and the active pen, and the method includes: the active pen sends a coding signal to the first touch screen; the active pen receives a wireless signal sent by the first touch screen, the wireless signal carries identification information of the first touch screen; the active pen identifies the first touch screen that is currently close to or in contact with the active pen according to the identification information of the first touch screen; and the active pen sends a wireless message to the first touch screen through the wireless channel corresponding to the first touch screen.
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
80.
ULTRA-WIDEBAND RANGING METHOD, APPARATUS AND SYSTEM
Provided in the embodiments of the present application are an ultra-wideband ranging method, apparatus and system. The ultra-wideband ranging method is applied to a first electronic device, and the first electronic device comprises: a main ultra-wideband (UWB) module and an auxiliary ultra-wideband (UWB) module. The ultra-wideband ranging method comprises: a main UWB module sending trigger information to an auxiliary UWB module; the main UWB module executing first ranging communication with at least one second electronic device, such that the at least one second electronic device determines a first distance from the main UWB module; the auxiliary UWB module executing second ranging communication with the at least one second electronic device according to the trigger information, such that the at least one second electronic device determines a second distance from the auxiliary UWB module; and the main UWB module and/or the auxiliary UWB module receiving the first distance and the second distance, which are sent by the at least one second electronic device. By means of the technical solution, the ranging precision between a first electronic device and a second electronic device can be improved.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
H04W 4/02 - Services making use of location information
Techniques are described for optical sightline tracking in a wearable system. Embodiments include a wearable structure that includes at least one integrated illuminator and at least one integrated imaging array. Each illuminator and imaging array is disposed in the periphery of an eye of a user wearing the structure. From the peripheral viewpoint, embodiments measure a three-dimensional origin point of one or both eyes and can compute angular coordinate measurements for one or both eyes based on the imaging to indicate the direction in which the user's eyes are looking (a sightline). Embodiments can track changes in the sightline to support various applications, such as positioning of display of virtual objects in virtual or augmented reality environments. Some embodiments can also use the obtained imagery for biometric verification and/or identification, detection of changes in pupillary response, etc.
Provided in the present application are a driving circuit, an active stylus and a touch chip, which can increase the amplitude of signals output by the driving circuit without increasing the power consumption. The driving circuit is used for providing a driving voltage for a capacitive load, and comprises a first voltage generation circuit, at least one energy storage element and a switching circuit. The first voltage generation circuit and the at least one energy storage element are connected to the load via the switching circuit; the first voltage generation circuit is used for outputting a first supply voltage; the switching circuit is used for controlling in a first time period the first voltage generation circuit to charge the load until the voltage of the load is the first supply voltage, controlling in a second time period the load to successively discharge to the at least one energy storage element, controlling in a third time period the load to discharge to the ground, and controlling in a fourth time period the at least one energy storage element to successively charge the load, so that the voltage of the load rises and falls in a stepwise manner during the different time periods.
The present application provides a method for the synchronization between an active stylus and a touch screen, an active stylus and a touch screen, capable of improving the speed of synchronization between a touch screen and an active stylus. The method is performed by an active stylus, and the method comprises: sending a pre-synchronization signal to a touch screen, wherein the pre-synchronization signal is used for determining a target area where the active stylus is located on the touch screen, so that the touch screen sends an uplink signal in the target area; detecting the uplink signal; and if the uplink signal is detected, performing time synchronization with the touch screen according to the uplink signal.
An adaptive DC-DC boost converter arrangement and an electronic circuit including such an arrangement are provided. The arrangement includes a circuit board with a plurality of electronic components mounted thereon, implementing an adaptive DC-DC boost converter circuit and a boost decoupling capacitor. The adaptive DC-DC boost converter circuit comprises a DC-DC boost converter having a converter set value input, a boost supply input, and a boost voltage output, and an adaptive DC-DC boost control unit having a control input and a control output. An acoustical noise suppression filter is present having a filter input connected to the control output of the adaptive DC-DC boost control unit and a filter output connected to the converter set value input of the DC-DC boost converter.
The present disclosure provides a method for detecting a folding angle of a foldable screen, a touch chip, a touch panel, and an electronic device, thereby effectively detecting a folding angle of a foldable screen of the electronic device. The method includes: acquiring detection data of a particular detection channel in a touch panel, where the touch panel includes a bending region extending along a first direction and a non-bending region distributed on both sides of the bending region along a second direction, the second direction is perpendicular to the first direction, and the particular detection channel is a first detection channel that is closest to the bending region or is located within the bending region among a plurality of first detection channels parallel to the first direction; and determining the folding angle of the foldable screen according to the detection data of the particular detection channel.
G06F 1/16 - Constructional details or arrangements
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
The present application provides an ambient light sensor and an electronic device. The detection precision of an ambient light sensor under a display screen can be improved. The ambient light sensor comprises: a light filtering unit array comprising a plurality of light filtering units that comprise red light filtering units, green light filtering units, and blue light filtering units; and a pixel unit array located below the light filtering unit array. The pixel unit array comprises a plurality of pixel units that are used for receiving a light signal generated after ambient light passes through a display screen and the plurality of light filtering units. The number of the blue light filtering units is greater than that of the red light filtering units, and the gravity center of a pattern formed by the red light filtering units, the gravity center of a pattern formed by the green light filtering units, and the gravity center of a pattern formed by the blue light filtering units in the plurality of light filtering units coincide.
Techniques are described for low-noise self-capacitor sensing in a capacitive touch panel array integrated with a display panel. Each channel of the array has a self-capacitance (Ci) that changes responsive to presence or absence of a local touch event local. Each channel is read by an analog front-end (AFE) by using a locally noise-suppressed discharge current for a discrete discharge time to discharge Ci to obtain a discharge voltage level that differs with presence or absence of the local touch event, and outputting a voltage output for the channel based on the discharge voltage level by passively mixing at least the discharge voltage level to produce a pair of up-converted channel signals, sampling the pair of up-converted channel signals to obtain a differential voltage sample, and amplifying the differential voltage sample to generate the Vout as indicating absence or presence of the touch event local to the channel.
Techniques are described for using a multi-branch AC-mode bridge approach with global current rotation for self-capacitor sensing in a capacitive touch panel, such as integrated into a display of a touchscreen electronic device. K channels are coupled with K branches of a multi-branch AC-mode bridge to form K−1 pairs of channels for concurrent differential readout. K nominally identical sinusoidal input currents are generated based on an error signal, which is generated based on comparing a sinusoidal driver signal with feedback from one or more of the K branches. A unit current rotator rotates the K sinusoidal input currents to each of the branches, so that each branch current is formed by a rotating contribution from each of the sinusoidal input currents. Driving each branch with its branch current manifests a respective branch voltage, and differences between the branch voltages can be used to differentially sense pairs of channels.
Provided in the present application are a color temperature measurement method and apparatus, and an electronic device, which can accurately measure the color temperature of a light source. The method comprises: according to multi-channel data of a light source to be subjected to measurement and multi-channel data of a first standard light-source group, determining a proportionality coefficient corresponding to the first standard light-source group, wherein the proportionality coefficient corresponding to the first standard light-source group is used for representing the proportion of multi-channel data of each standard light source in the first standard light-source group to the multi-channel data of the light source to be subjected to measurement; according to the multi-channel data of the first standard light-source group and the proportionality coefficient corresponding to the first standard light-source group, determining a tristimulus value of the light source to be subjected to measurement; and determining, according to the tristimulus value, the color temperature of the light source to be subjected to measurement.
An ultrasonic fingerprint sensor and a manufacturing method therefor, and an electronic device. According to the manufacturing method for the ultrasonic fingerprint sensor provided by the present application, a voltage is applied to a piezoelectric film at the temperature of 20°C to 30°C for polarization. Waiting processes for cooling and heating are not needed, so that the polarization process time of the ultrasonic fingerprint sensor during production is shortened, and the production efficiency is improved; moreover, after the piezoelectric film is polarized and patterned to form a piezoelectric layer, the influence of the polarization mode on a second electrode does not need to be considered, so that the polarization mode of forming the second electrode is more flexible.
A method and apparatus for determining a drop depth of screen light leakage and an electronic device. The method comprises: acquiring sampling data according to a vertical synchronization signal; determining a first sampling sequence, and a second sampling sequence and/or a third sampling sequence according to the sampling data, wherein the first sampling sequence is a sampling sequence of a blank of a screen light leakage drop waveform, the second sampling sequence is a sampling sequence of the left side of the blank of the screen light leakage drop waveform, and the third sampling sequence is a sampling sequence of the right side of the blank of the screen drop waveform; and determining a drop depth according to the first sampling sequence, and the second sampling sequence and/or the third sampling sequence. According to the method, the accuracy of screen light leakage calculation can be improved, thereby helping to improve the accuracy and reliability of ambient light detection.
An active noise cancelling method and an active noise cancelling earpiece, capable of improving the noise cancelling effect of the active noise cancelling earpiece. The active noise cancelling earpiece comprises: an in-ear microphone, an out-ear microphone, a loudspeaker and a filter. The method comprises: when the loudspeaker is playing audio data, determining a first primary path transfer function according to first out-ear data collected by the out-ear microphone and first in-ear data collected by the in-ear microphone; according to the first in-ear data, the first out-ear data and the first primary path transfer function, determining audio data received by the in-ear microphone; according to the audio data played by the loudspeaker and the audio data received by the in-ear microphone, determining a first secondary path transfer function; and, according to the first primary path transfer function and/or the first secondary path transfer function, updating the working coefficient of the filter into a first working coefficient.
An ultrasonic fingerprint apparatus (2) and an electronic device (3). The ultrasonic fingerprint apparatus (2) is provided under a display screen (4) of the electronic device (3), so as to realize under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (2) comprises an ultrasonic fingerprint chip (20) and a piezoelectric transducer (10) provided on the ultrasonic fingerprint chip. The piezoelectric transducer (10) comprises a piezoelectric layer (110), an upper electrode (120) located on the piezoelectric layer (110), and lower electrodes (130) located under the piezoelectric layer (110). The ultrasonic fingerprint chip (20) comprises a substrate 210, and a plurality of metal layers provided in a first region (201) of the substrate (210). The lower electrodes (130) are located above a second region (202) of the substrate (210). A top metal layer (TM) in the plurality of metal layers comprises N driving wires (230), wherein N=1 or N is a positive integer greater than 1. A passivation layer (220) is provided on the top metal layer (TM). A first window (221) corresponding to the N driving wires (230) is provided on the passivation layer (220). The upper electrode (120) extends from the upper surface of the piezoelectric layer (110) into the first window (221), so as to be separately connected to respective first connection regions (231) of the N driving wires (230) located in the first window (221).
An ultrasonic fingerprint apparatus (1) and an electronic device. The ultrasonic fingerprint apparatus (1) is arranged below a display screen of the electronic device, so as to implement under-display ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (1) comprises an ultrasonic fingerprint chip (20) and a piezoelectric transducer (10) provided above the ultrasonic fingerprint chip (20); the piezoelectric transducer (10) comprises a piezoelectric layer (110), an upper electrode (120) located above the piezoelectric layer (110), and a lower electrode (130) located below the piezoelectric layer (110); the ultrasonic fingerprint chip (20) is a CMOS chip; the upper electrode (120) is led out to the surface of the CMOS chip, and is connected to one end of a lead (310) by means of a pad (241) on the surface of the COMS chip; and the other end of the lead (310) is connected to a circuit board (30) below the ultrasonic fingerprint chip (20), so as to implement electrical connection between the piezoelectric transducer (10) and the circuit board (30).
The present application provides an ultrasonic fingerprint apparatus and an electronic device. The packaging structure of the ultrasonic fingerprint apparatus is improved, and the fingerprint recognition performance of the ultrasonic fingerprint apparatus is ensured. The ultrasonic fingerprint apparatus comprises an ultrasonic fingerprint chip and a piezoelectric transducer above the ultrasonic fingerprint chip; the piezoelectric transducer is used for transmitting an ultrasonic signal to a finger above a display screen and receiving an ultrasonic fingerprint signal that is returned by the finger and carries fingerprint information, and the ultrasonic fingerprint chip is connected to a circuit board by means of a lead; a spacing layer is arranged between the ultrasonic fingerprint apparatus and the display screen, so that a space for accommodating the lead is formed between the display screen and the ultrasonic fingerprint chip; the spacing layer comprises a first matching layer, a second matching layer, and a third matching layer; the second matching layer is located between the first matching layer and the third matching layer; and the acoustic impedance of the second matching layer is different from the acoustic impedance of the first matching layer, and is different from the acoustic impedance of the third matching layer.
The present application provides an ultrasonic fingerprint recognition method, an ultrasonic fingerprint apparatus, and an electronic device, which can reduce the impact of temperatures on ultrasonic fingerprint recognition. The method is executed by the ultrasonic fingerprint apparatus. The ultrasonic fingerprint apparatus is arranged below a screen of the electronic device to realize under-display ultrasonic fingerprint recognition. The method comprises: acquiring correspondences between a plurality of temperatures and a plurality of parameter groups, wherein each parameter group comprises at least one of the following parameters: the frequency of an ultrasonic signal emitted to a finger, the number of times an ultrasonic fingerprint signal returned by the finger is acquired, and the delay of an acquisition window for the ultrasonic fingerprint signal relative to an emission moment for the ultrasonic signal; determining a target parameter group among the plurality of parameter groups on the basis of a first temperature and the correspondences; and performing fingerprint recognition at the first temperature according to parameters in the target parameter group.
A class D amplifier is provided, including: a first comparator, configured to generate a first comparison result based on a positive end input signal and a triangular wave; a second comparator, configured to generate a second comparison result based on a negative end input signal and the triangular wave; an exclusive OR gate, configured to generate a first control signal based on the first comparison result and the second comparison result; a first AND gate, configured to generate a positive end PMW output based on the first comparison result and the first control signal; and a second AND gate, configured to generate a negative end PMW output based on the second comparison result and the first control signal; and an output stage, configured to generate the positive end output signal and the negative end output signal correspondingly based on the positive end PMW output and the negative end PMW output.
H03K 5/22 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
H03K 19/21 - EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one inputCOINCIDENCE circuits, i.e. giving output only if all input signals are identical
98.
Active noise cancellation method and active noise cancellation earphones
An active noise cancellation method and active noise cancellation earphones are provided, which may improve a noise cancellation effect of the active noise cancellation earphones. The method includes: determining a first primary path transfer function according to a first out-of-ear data collected by the out-of-ear microphone and a first in-ear data collected by the in-ear microphone when the speaker plays audio data; determining audio data received by the in-ear microphone according to the first in-ear data, the first out-of-ear data and the first primary path transfer function; determining a first secondary path transfer function according to the audio data played through the speaker and the audio data received by the in-ear microphone; and updating an operation coefficient of the filter to a first operation coefficient according to the first primary path transfer function and/or the first secondary path transfer function.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
99.
ULTRASONIC FINGERPRINT APPARATUS AND ELECTRONIC DEVICE
An ultrasonic fingerprint apparatus (300) and an electronic device. A packaging structure for the ultrasonic fingerprint apparatus (300) is improved, thereby improving the fingerprint recognition performance of the ultrasonic fingerprint apparatus (300). The ultrasonic fingerprint apparatus (300) is arranged below a display screen (100) of the electronic device so as to achieve under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (300) comprises an ultrasonic fingerprint chip (310) and a piezoelectric transducer (320) provided above the ultrasonic fingerprint chip (310), wherein the piezoelectric transducer (320) comprises a piezoelectric layer (321), an upper electrode (322) located above the piezoelectric layer (321), and a lower electrode (323) located below the piezoelectric layer (321). The ultrasonic fingerprint apparatus (300) is connected to a circuit board (600) by means of a lead (700), and two ends of the lead (700) are respectively welded to the ultrasonic fingerprint chip (310) and the circuit board (600). A spacer layer (400) is provided between the ultrasonic fingerprint apparatus (300) and the display screen (100), and the spacer layer (400) is used for increasing a space between the display screen (100) and the ultrasonic fingerprint chip (310) so as to accommodate the lead (700).
An operational amplifier-based hysteresis comparator and a chip are provided. The hysteresis comparator includes: an input stage and an amplification stage. The input stage includes: a first input branch and a second input branch, where the first input branch generates a first current based on the first voltage, and the second input branch generates a second current based on the second voltage. The first current is connected with a first input terminal of the amplification stage, and the second current is connected with a second input terminal of the amplification stage. An output terminal of the amplification stage outputs a first level when the first current is greater than the second current, and outputs a second level when the first current is less than the second current. The present disclosure changes the hysteresis voltage generation mode, thereby reducing the instability caused by positive feedback.
H03K 5/22 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
H03K 5/24 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
