Technologies directed to phase-locked loop (PLL) duty cycle calibration are described. A circuit includes an amplifier to generate a level-shifted clock with a duty cycle. The circuit further includes comparison logic coupled to an output of the amplifier that compares the duty cycle to a target duty cycle and generates a difference value. Tuning logic coupled to the amplifier adjust the duty cycle based on the difference value.
H03L 7/089 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie le détecteur de phase ou de fréquence engendrant des impulsions d'augmentation ou de diminution
H03K 5/156 - Dispositions dans lesquelles un train d'impulsions est transformé en un train ayant une caractéristique désirée
H03L 7/093 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie utilisant des caractéristiques de filtrage ou d'amplification particulières dans la boucle
H03L 7/099 - Détails de la boucle verrouillée en phase concernant principalement l'oscillateur commandé de la boucle
2.
INCREASING DYNAMIC RANGE OF A TIME-TO-DIGITAL CONVERTER
A time-to-digital converter (TDC) circuit including serially-coupled delay units is disclosed. A feedback loop is coupled between a final delay unit of the serially-coupled delay units and an input to the serially-coupled delay units. A counter with a clock input is coupled to an output of the final delay unit. A value of the counter is to be incremented responsive to the counter receiving a toggle signal from the final delay unit.
H03L 7/085 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie
G04F 10/00 - Appareils pour mesurer des intervalles de temps inconnus par des moyens électriques
3.
HYSTERETIC CONTROL FOR LOAD TRANSIENT IMPROVEMENT IN PEAK CURRENT CONTROL MODE POWER CONVERTER ARCHITECTURES
In some embodiments, a system includes a power conversion system including at least one driver operatively coupled to at least one switch, a hysteretic control system, and driver control circuitry, operatively coupled to the at least one driver and the hysteretic control system, to receive at least one driver control signal from the hysteretic control system, and to control, based on the at least one driver control signal, operation of the at least one driver.
H02M 1/00 - Détails d'appareils pour transformation
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
4.
SYSTEMS, METHODS, AND DEVICES FOR TEMPERATURE MANAGEMENT IN WIRELESS DEVICES
Systems, methods, and devices provide temperature management in wireless devices. Methods include comparing, using a processing device, a measured temperature of a component of a wireless device with a designated temperature value, and determining, using the processing device, if a transmission parameter of the wireless device should be adjusted, the determining comprising determining that the measured temperature is a designated difference from the designated temperature value. Methods further include identifying, using the processing device, an adjustment to be made to the transmission parameter in response to determining that a transmission parameter should be adjusted, and adjusting, using the processing device, the transmission parameter of one or more transmission operations of the wireless device based on the identified adjustment.
H04W 52/36 - Commande de puissance d'émission [TPC Transmission power control] utilisant les limitations de la quantité totale de puissance d'émission disponible avec une plage ou un ensemble discrets de valeurs, p. ex. incrément, variation graduelle ou décalages
H04W 52/52 - Commande de puissance d'émission [TPC Transmission power control] utilisant des circuits ou des amplificateurs de commande automatique de gain [AGC Automatic Gain Control]
H04W 72/51 - Critères d’affectation ou de planification des ressources sans fil sur la base des propriétés du terminal ou du dispositif
5.
POST-SAMPLING SELECTABLE GAIN IN SAMPLE AND HOLD ANALOG-TO-DIGITAL CONVERTERS
A system and method for a post-sampling selectable gain circuit in sample and hold (S/H) analog-to-digital converters (ADCs). The method includes scaling down or scaling up a reference voltage to generate a plurality of candidate voltages associated with a plurality of measurement accuracies of a sampler circuit, each candidate voltage of the plurality of candidate voltages is respectively associated with a respective measurement accuracy of the plurality of measurement accuracies. The method includes selecting, by a processing device and based on an input voltage for the sampler circuit, a particular candidate voltage from the plurality of candidate voltages that is associated with an optimal measurement accuracy of the plurality of measurement accuracies. The method includes generating a sampler voltage associated with the optimal measurement accuracy by operating the sampler circuit based on the particular candidate voltage or an additional voltage associated with the particular candidate voltage.
H03M 1/46 - Valeur analogique comparée à des valeurs de référence uniquement séquentiellement, p. ex. du type à approximations successives avec convertisseur numérique/analogique pour fournir des valeurs de référence au convertisseur
The embodiments described herein are directed at techniques to perform antenna/cable disconnection using co-located communication devices. A first device may transmit a reference signal over a predetermined bandwidth. A parasitic signal corresponding to the reference signal may be received via coupling at a second device that is co-located with the first device. The second device may be coupled to a first end of a cable via a port, with the second end of the cable configured to connect to an antenna. A processing device may determine a ratio of amplitudes of the parasitic signal over a predefined bandwidth. The processing device may then determine, based on the amplitude of the parasitic signal over the predefined bandwidth, a disconnect status of one or more of the antenna and the cable.
Methods and systems for optimized channel scanning for an access point device. The disclosed method includes, among other things, initializing, by a station device, an access point (AP) in a wireless network, selecting, by the station device, a preferred scanning channel (PSC) of a plurality of PSCs in a high frequency band of the wireless network, scanning, by the station device, the PSC of the plurality of PSCs, determining whether the PSC is free of wireless activity, and responsive to determining that the PSC is free of wireless activity, selecting the PSC for the AP to operate on.
Systems and methods are disclosed to measure output voltage of a source follower to control the reference voltage provided to the source follower to compensate for deviations of the output voltage from a desired operating range. Disclosed techniques include using an ADC or a window comparator to sample an output of a source follower type voltage regulator whose regulated voltage is set by a reference voltage. The sampled output voltage is compared against a desired range. The ADC or the window comparator generates an indication in response to the comparison. A processor or a sequencer may determine an adjustment amount to the reference voltage based on the indication and May 10 adjust the reference voltage based on the adjustment amount to maintain the output of the source follower type voltage regulator within the desired range. An ADC may apply the adjusted reference voltage to the source follower.
G05F 1/575 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu utilisant des dispositifs à semi-conducteurs en série avec la charge comme dispositifs de réglage final caractérisé par le circuit de rétroaction
9.
CONTROL REGISTER RELATED COMPUTING SYSTEM AND METHOD
One or more computing devices, systems, and/or methods are provided. In an example, a computing system includes a first processing complex including a first status register unit, a second processing complex including a second status register unit, a lockstep unit configured to verify redundancy in the first status register unit and the second status register unit, a control register unit connected to the lockstep unit and including control registers, each configured to store control register data and an error correction code (ECC) associated with the control register data, a scrubber configured to read the control registers at a predetermined frequency, and an ECC unit configured to, responsive to a read of a selected control register of the control registers by the scrubber, validate the control register data associated with the selected control register based on the ECC associated with the control register data.
G06F 11/08 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p. ex. en utilisant des codes de contrôle
10.
SUCCESSIVE APROXIMATION REGISTER ANALOG TO DIGITAL CONVERTERS INCLUDING BUILT-IN SELF-TEST
A Successive Approximation Register (SAR) Analog to Digital Converter (ADC) includes a Capacitive Digital to Analog Converter (CDAC), a comparator, and control logic. The CDAC includes a plurality of trim capacitors addressed via a trimming code. The comparator is coupled to the CDAC to compare an output voltage of the CDAC to a common mode voltage (VCM) to output a logic high value or a logic low value based on the comparison. The control logic includes SAR ADC control logic to control the CDAC and the comparator in a SAR ADC mode and Built-In Self-Test (BIST) control logic to control the CDAC and the comparator in a CDAC BIST mode to set at least one trimming code for the SAR ADC mode.
An integrated circuit includes a sigma-delta modulator coupled to a receive electrode of a capacitive touch screen sensor and including a first single-ended integrator and a second single-ended integrator selectively coupled to an output of the first single-ended integrator. A latch is coupled to an output of the second single-ended integrator and driven by a frequency modulation signal. A balancing circuit is selectively coupled to a first input of the first single-ended integrator and to a second input of the second single-ended integrator. Logic is coupled to the balancing circuit and causes, based on the frequency modulation signal and an output value of the latch, the balancing circuit to one of: apply a positive balancing current to the first input and a negative balancing current to the second input; or apply a positive balancing current to the second input and a negative balancing current to the first input.
Systems, methods, and devices provide radar detection in wireless devices. Methods include determining wireless connection data for a wireless communications link, and generating a plurality of wireless connection metrics based on the wireless connection data. Methods also include generating a selection of one or more of a plurality of subcarriers based, at least in part, on the plurality of wireless connection metrics, and generating a determination of a presence event based, at least in part, on the selection of the one or more subcarriers.
Systems, methods, and devices provide protection for sensing circuits. Methods may include providing, using a microcontroller unit (MCU), a drive signal to a touch sensor via an asymmetric conductance element of a protection circuit, providing, using the MCU, a scanning signal to the touch sensor via an additional conductance element of the protection circuit, and receiving, at the MCU, a sense signal from the touch sensor via the additional conductance element of the protection circuit. Methods also include determining, using the MCU, if a touch event has occurred based on measurements obtained during scanning of the touch sensor.
A method for receiving, by an ambient power (AMP) device that harvests environmental energy, an identification (ID) request frame from a powered wireless device. The ID request frame includes one or more frame-exchange parameters and an authentication and key management (AKM) method. The method includes retrieving, from memory, a secret that is shared with the powered wireless device, determining, using the secret, one or more first AKM parameters, and transmitting, to the powered wireless device, by the AMP device, an ID response frame including an ID of the AMP device, at least one of the one or more frame-exchange parameters and the one or more AKM parameters with which the powered wireless device is to be mutually authenticated with the AMP device and to generate an encryption key to initiate an encrypted wireless communication session.
An integrated circuit includes a sigma-delta modulator (SDM) coupled to a receive electrode, which is selectively coupled to multiple unit cell sensors. A demodulator is coupled directly to the SDM, the demodulator to generate a multibit digital signal by demodulating a digital pulse density modulated (PDM) signal received from the SDM. The demodulating can include multiplying digitized cosine values with the digital PDM signal. A cascaded integrator-comb (CIC) filter is coupled to the demodulator and includes a first integrator and a second integrator cascaded together and to accumulate, at the second integrator, a plurality of samples of the multibit digital signal. The CIC filter includes a single comb circuit coupled to the second integrator, the single comb circuit to generate a measured amplitude bitstream from the accumulated samples.
Methods and systems for improving wireless local area network performance during periodic advertisement with response protocol. The disclosed method includes, among other things, receiving, by a wireless local area network (WLAN) sub-system of a wireless device, a signal associated with a sub-event of an advertisement event from a wireless personal area network (WPAN) sub-system of the wireless device, wherein the WLAN sub-system and the WPAN sub-system share a frequency band, determining whether a priority bit associated with the sub-event indicates whether during the sub-event empty payload will be transmitted, and in response to determining that the priority bit indicates that during the sub-event an empty payload will be transmitted, utilizing, by the WLAN sub-system, the frequency band for a predetermined amount of time allocated to the sub-event.
Systems, methods, and devices provide low-power wakeup operations in wireless environments. Methods include receiving a signal at a wireless device, the signal comprising a data packet compatible with a wireless communication protocol, performing, using one or more processing elements, a first wake detection operation at a first wake stage of the wireless device, and determining, based on a designated pattern and performance parameters, if a second wake detection operation should be performed at a second wake stage of the wireless device. Methods also include determining, using one or more processing elements, if a valid wake code has been received based on a designated wake code associated with the data packet.
A method can include wirelessly receiving and storing tire information in memory circuits. By operation of processing circuits, an initial tire firmness value can be determined for one or more tires using the stored tire information. By operation of communication circuits, an initial tire firmness value can be transmitted. Mode information can be received and stored in memory circuits. In response to mode information, processing circuits can determine a revised tire firmness value for one or more tires using at least the mode information. By operation of communication circuits, revised tire firmness values can be wirelessly transmitted.
A method can include, wirelessly receiving tire information at a tire sensor device; acquiring sensor data with at least the tire sensor device; storing at least the tire information and sensor data in a tire profile data structure; periodically transmitting the tire profile data structure from the tire sensor device according to at least one wireless standard; and in response to changes in a state of the tire, updating the tire profile data structure; wherein the tire information identifies the tire. Corresponding devices and systems are also disclosed.
Methods and systems for precise protection of a shared medium based on payload length of a WPAN packet. The disclosed method includes, among other things, monitoring, by a wireless local area network (WLAN) sub-system, a frequency band for wireless personal area network (WPAN) activity from a WPAN sub-system, identifying, from the WPAN activity, a WPAN packet transmitted during a first time slot, obtaining, from WPAN packet, a payload length of the WPAN packet, and interrupting, by the WLAN sub-system, the WPAN activity to transmit at least a portion of a first WLAN packet within a remainder of the first time slot.
H04W 74/0816 - Accès non planifié, p. ex. ALOHA utilisant une détection de porteuse, p. ex. accès multiple par détection de porteuse [CSMA] avec évitement de collision
H04W 84/12 - Réseaux locaux sans fil [WLAN Wireless Local Area Network]
One or more devices, systems, and/or methods are provided. In an example, a method includes mixing a passband receive signal with a local oscillator frequency to generate a receive signal, filtering the receive signal using a complex filter to generate a filtered receive signal, converting the filtered receive signal to a digital receive signal, and generating a corrected receive signal based on the digital receive signal by applying a first correction and a second correction to the digital receive signal, where the first correction reduces imbalance in the digital receive signal and the second correction reduces nonlinear direct current terms in the digital receive signal.
A wireless device includes a receiver adapted with Bluetooth® low energy (BLE) capability and logic at least one of coupled to or integrated within the receiver. The logic determines frequency samples of bits of a predetermined pattern of a packet during a round-trip timing estimation of the packet, wherein the packet is received during a keyless access attempt of an enclosure having a transmitter and the receiver. The logic compares, to a reference frequency sample, the frequency samples of bits of the predetermined pattern. In response to determining a difference between the reference frequency sample and the frequency samples of bits of the predetermined pattern, the logic detects an intrusion associated with the predetermined pattern.
In an embodiment of the techniques presented herein, a universal serial bus power delivery (USB-PD) power adaptor includes a USB port, and a USB controller configured to deliver power to the USB port, wherein the USB controller includes a voltage regulator configured to generate a power supply voltage based on a pulse frequency modulation (PFM) signal, and a variable current bleed unit configured to generate a variable current bleed load on the voltage regulator based on a frequency of the PFM signal to maintain the frequency of the PFM signal above an audible frequency range.
The present disclosure provides an approach that determines a pulse frequency modulation (PFM) period of a buck regulator. The PFM period comprises a first charging stage and a first discharging stage, and wherein the buck regulator switches from the first discharging stage to the first charging stage based on comparing a feedback voltage to a low threshold voltage. The approach generates a pseudo random pulse at a pseudo random period, wherein the pseudo random period is independent from the low threshold voltage. Then, the approach initiates a transition from a second discharging stage to a second charging stage based on the pseudo random pulse.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/00 - Détails d'appareils pour transformation
H03K 5/04 - Mise en forme d'impulsions par augmentation de duréeMise en forme d'impulsions par diminution de durée
H03K 7/06 - Modulation de fréquence ou de vitesse, c.-à-d. P F M ou P R M
Methods and systems for predictively mitigating against radio interference. The disclosed method includes, among other things, obtaining a plurality of current channel metrics, predicting, based on the plurality of current channel metrics, a plurality of future channel metrics associated with the frequency band, and determining, based on the plurality of future channel metrics associated with the frequency band, a plurality of channel quality scores associated with the frequency band.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
A touch sensor includes a sensor electrode, a touch panel overlying the sensor electrode, and a dielectric covering separating the sensor electrode from the touch panel. The dielectric covering may be configured to inhibit electrostatic discharge through the sensor electrode.
A device includes a Coordinate Rotation Digital Computer (CORDIC), a memory, a first Direct Memory Access (DMA) engine, and a second DMA engine. The memory stores an array of calculation data sets and an array of result data sets corresponding to the calculation data sets. The first DMA engine copies each data set of the array of calculation data sets from the memory to the CORDIC. The second DMA engine copies each result data set of the array of result data sets from the CORDIC to the memory and generates a trigger in response to copying a final result data set of the array of result data sets to the memory.
G06F 13/28 - Gestion de demandes d'interconnexion ou de transfert pour l'accès au bus d'entrée/sortie utilisant le transfert par rafale, p. ex. acces direct à la mémoire, vol de cycle
G06F 13/30 - Gestion de demandes d'interconnexion ou de transfert pour l'accès au bus d'entrée/sortie utilisant le transfert par rafale, p. ex. acces direct à la mémoire, vol de cycle avec commande prioritaire
28.
SYSTEMS, METHODS, AND DEVICES FOR RADAR OPERATION IN WIRELESS DEVICES
Systems, methods, and devices enable radar operation in wireless devices. Methods include switching a first transceiver and a second transceiver from a communications mode to a sensing mode while maintaining a network connection, generating a designated waveform at a wireless device, and transmitting a first signal based on the designated waveform via the first transceiver of the wireless device. Methods also include receiving a second signal via the second transceiver of the wireless device, the second transceiver being collocated with the first transceiver within the wireless device, and generating sensing data based on the second signal, the sensing data comprising an indication of whether an entity has been detected by the wireless device.
G01S 13/32 - Systèmes pour mesurer la distance uniquement utilisant la transmission d'ondes continues, soit modulées en amplitude, en fréquence ou en phase, soit non modulées
G01S 13/56 - Discrimination entre objets fixes et mobiles ou entre objets se déplaçant à différentes vitesses pour la détection de présence
29.
Leveraging Wi-Fi Punctured Sub-channels Information for Enhanced Co-Existence
A system and method are provided for co-existence in a wireless device including a co-located wireless local area network (WLAN) radio and a wireless personal area network (WPAN) radio. Generally, the method includes identifying a number of punctured sub-channels in channels used in a WLAN to communicate with the WLAN radio, and instructing the WPAN radio over which of the sub-channels to transmit and receive to reduce interference between the WPAN radio and communications between the WLAN radio and access point or station in the WLAN. The WLAN radio can be a Wi-Fi radio using an IEEE 802.11 protocol supporting preamble puncturing using a Punctured Sub-channel Bitmap in a physical layer protocol data unit, and the WPAN radio can be an unlicensed, short-range Bluetooth, Bluetooth low-energy, narrow-band or ultra-wideband radio. The WLAN radio can learn the punctured sub-channels from an access point, or request the sub-channels be punctured.
A fly-back converter and a synchronous-rectifier (SR) controller therefor are provided to eliminate cross-conduction between a power switch on the primary side of a transformer and a SR field effect transistor (FET) on the secondary side of the transformer when operating in continuous conduction mode. Generally, the SR controller comprises a SR sense pin coupled to a drain of the SR FET, and a gate driver coupled to control a gate of the SR FET. A negative-sensing (NSN) comparator is coupled to the SR sense pin and is operable to generate a turn-on signal for the gate driver based on a voltage on the SR sense pin. A zero-crossing detector (ZCD) comparator is coupled to the SR sense pin and is operable to generate a turn-off signal for the gate driver based on the voltage on the SR sense pin. The SR controller is operable to turn off the SR FET without turn-on information of the power switch received from the primary side controller.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
31.
Puncturing Request Signaling for Facilitating BT-BLE Co-Existence with Wi-Fi
A system and method are provided for co-existence in a co-located device including a wireless local area network (WLAN) radio and a wireless personal area network (WPAN) radio. Generally, the method includes using a WPAN side of the co-located device, notifying a WLAN side of latency sensitive traffic (LST) for the WPAN radio. The WLAN side then identifies a number of punctured sub-channels in a plurality of channels used in a basic service set (BSS) to communicate with the WLAN radio, and instructs the WPAN side over which of the number of punctured sub-channels to transmit using the WPAN radio. The WPAN radio then transmits the LST over the number of punctured sub-channels to eliminate interference between the WPAN radio and concurrent communications with the WLAN radio in the BSS.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 60/04 - Rattachement à un réseau, p. ex. enregistrementSuppression du rattachement à un réseau, p. ex. annulation de l'enregistrement utilisant des événements déclenchés
H04W 84/12 - Réseaux locaux sans fil [WLAN Wireless Local Area Network]
32.
METHODS, DEVICES AND SYSTEMS FOR ADDING DEVICES TO A WIRELESS NETWORK
A method can include, by operation of a first wireless device, in response to detecting a user input at the first wireless device, transmitting a first wireless message. In response to receiving a second wireless message, a determination can be made that an intermediate device is within a predetermined proximity. A sharing message can be received that includes a secret value. In response to receiving an exchange message, a determination can be made that a second wireless device stores the secret value. An operation can be executed to add the first or second wireless device to a wireless network that includes transmission of provisioning messages having the address corresponding to the second wireless device. Corresponding devices and systems are disclosed.
Systems, methods, and devices provide improved coexistence of collocated transceivers. Methods include identifying, using one or more processing elements, wireless activity associated with a first transceiver, the first transceiver being collocated with a second transceiver, and generating, using the one or more processing elements, a puncture pattern for the first transceiver based, at least in part, on the identified wireless activity, the puncture pattern identifying an unused plurality of sub-channels of the first transceiver. Methods also include generating, using the one or more processing elements, a hopping pattern for the second transceiver based, at least in part, on the puncture pattern, the hopping pattern identifying a sequence of sub-channels used by the second transceiver for wireless activity, and the hopping pattern including at least some of the plurality of sub-channels identified by the puncture pattern.
In an embodiment, a method for operating a USB-PD power adaptor comprises operating a first buck circuit comprising a first switch connected between a supply voltage terminal and a first USB port based on a first target voltage and a supply voltage at the supply voltage terminal, responsive to the first target voltage being less than the supply voltage plus an offset voltage, operating the first buck circuit in a variable-buck-input mode to control the first switch according to a first duty cycle based on the first target voltage and the supply voltage to generate the first target voltage at the first USB port, and responsive to the first target voltage being equal to the supply voltage plus the offset voltage, operating the first buck circuit in a buck-bypass mode to maintain an on state of the first switch to generate the first target voltage at the first USB port.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
35.
BLUETOOTH LOW ENERGY BASED WIRELESS AIR-TIME MANAGEMENT SYSTEM
Disclosed are techniques to setup and use a BLE based wireless network between central devices of multiple piconets to exchange information to coordinate air-time usage by the piconets of the central devices. The information exchanged may include channel maps that indicate frequency channels that are available for use by the respective piconets, slot availability masks that indicate future air-time slots for use by the respective piconets based on a common time reference, and other meta information used to coordinate regulation of air-time usage. The multiple central devices may collaboratively regulate their respective air-time usage based on the exchanged information to reduce the potential for air-time clash. In one aspect, the central devices may use the periodic advertising with response (PAwR) protocol in BLE to exchange future air-time usage information. The timing of periodic advertising packets may provide a time reference for the multiple central devices to coordinate their air-time usage.
H04W 74/0816 - Accès non planifié, p. ex. ALOHA utilisant une détection de porteuse, p. ex. accès multiple par détection de porteuse [CSMA] avec évitement de collision
Methods and systems for communication and sensing systems. The disclosed method includes, among other things, responsive to receiving a plurality of channel frequency response (CFR) measurements from an antenna operating at a low-bandwidth range, generating a channel state information (CSI) across a high-bandwidth range based on the plurality of CFR measurements and determining, based on the CSI, a Doppler shift across the high-bandwidth range.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
Disclosed are techniques to temporarily deactivate or activate the ACL link associated with an isochronous link between a central and a peripheral device of a BLE piconet. The central and peripheral devices may agree to enter into an ACL parked mode after an isochronous link is established between the devices. In the parked mode, the ACL link is in a dormant state without any ACL events. If the central or the peripheral device wants to activate the ACL link to transmit one or more control or data packets, the device may use a CIS subevent on the isochronous link to transmit an LL control PDU. The LL control PDU may contain ACL timing information that specifies the timing of the future ACL event. The device may specify the ACL timing information to avoid or reduce chances of collisions of the future ACL event with CIS packets on the isochronous link.
A voltage-controlled oscillator (VCO) includes a cross-coupled differential pair of n-type metal-oxide semiconductor (NMOS) transistors. The VCO further includes an inductor-capacitor (LC) tank circuit coupled to the cross-coupled differential pair of NMOS transistors. The VCO further includes cross-coupled pairs of complementary MOS (CMOS) transistors selectively coupled to the LC tank circuit.
H03B 5/12 - Éléments déterminant la fréquence comportant des inductances ou des capacités localisées l'élément actif de l'amplificateur étant un dispositif à semi-conducteurs
A digital phase-locked loop includes a first clock divider, a decimation filter, a proportional integral filter, a signal conditioner, and a digitally controlled oscillator. The first clock divider divides a first clock signal including a first clock rate to generate a second clock signal including a second clock rate less than the first clock rate. The decimation filter converts an input signal at the first clock rate to an output signal at the second clock rate. The proportional integral filter filters the output signal at the second clock rate to generate a filtered output signal. The signal conditioner conditions the filtered output signal at the second clock rate to generate a conditioned output signal. The digitally controlled oscillator generates a carrier clock signal in response to the conditioned output signal.
H04L 7/033 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière en utilisant les transitions du signal reçu pour commander la phase de moyens générateurs du signal de synchronisation, p. ex. en utilisant une boucle verrouillée en phase
40.
EMBEDDED ENABLEMENT FOR OPTIMAL GAIN-MASK MACHINE LEARNING, AUDIO CHANNEL-BASED SIGNAL ENHANCEMENT
A system includes memory storing instructions and a processing device coupled to the memory. The processing device executes the instructions to: receive a noisy audio signal from an audio receiver; pass the noisy audio signal through a deep neural network (DNN) model to generate a mask of a magnitude spectrogram of the noisy audio signal; retrieve a clean-only audio spectra and a noise-only spectra of one or more frequencies that exist within the noisy audio signal; generate a loss function as a combination of the clean-only audio spectra multiplied by the mask and the noise-only spectra multiplied by the mask; and train the DNN model while minimizing the loss function to generate a trained DNN model useable in audio noise suppression and dereverberation.
G10L 25/18 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par le type de paramètres extraits les paramètres extraits étant l’information spectrale de chaque sous-bande
G10L 25/30 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par la technique d’analyse utilisant des réseaux neuronaux
A coprocessor of a processing device used to perform pooling operations. The disclosed coprocessor, among other things, receives an activation tensor of a neural network model. The coprocessor applies a pooling window to the activation tensor. The coprocessor reads, from a memory device, a plurality of memory locations. For each memory location, the coprocessor stores a value from a respective memory location associated with a channel of the activation tensor to a corresponding buffer of a set of buffers. Responsive to determining a number of values in each buffer of the set of buffers matches a number of values within the pooling window applied to the activation tensor performing, for each buffer using its values, a pooling operation.
G06N 3/063 - Réalisation physique, c.-à-d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone utilisant des moyens électroniques
A system includes a broadcasting device and one or more receiving devices. The broadcast device is to broadcast an broadcast message to a set of receiving devices, wherein the broadcast message indicates that a broadcasting device is available for connection. The broadcasting device is also to receive, from a receiving device a response messages based on the broadcast message. The broadcasting device is further to determine a distance between the broadcasting device and the receiving device.
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
H04W 72/0446 - Ressources du domaine temporel, p. ex. créneaux ou trames
H04W 72/30 - Gestion des ressources des services de diffusion
43.
Peak detector circuit and an electronics system that includes the peak detector circuit
A peak detector circuit includes: a single operational amplifier having a non-inverting input, an inverting input, and an output; an output capacitor; a first diode having an anode electrically coupled to the output of the single operational amplifier and a cathode electrically coupled to the output capacitor; an RC feedback network electrically coupled between the output capacitor and the inverting input of the single operational amplifier; and a second diode having an anode electrically coupled to the inverting input of the single operational amplifier and a cathode electrically coupled to the anode of the first diode. An electronics system that includes the peak detector circuit is also described.
In an embodiment of the techniques presented herein, a charging system includes an input port, a wireless charging unit, having a magnetic charging interface, and a wireless charging controller configured to generate a magnetic charging signal at the magnetic charging interface based on a first connection state of the magnetic charging interface, and a universal serial bus power delivery (USB-PD) power adaptor, having an output port, and a USB-PD controller configured to deliver power to the output port, wherein a first portion of available power at the input port is allocated to the wireless charging unit for generating the magnetic charging signal responsive to the first connection state indicating a connected device, and a second portion of the available power at the input port is allocated to the USB-PD adaptor based on the first portion allocated to the wireless charging unit.
A method can include, by operation of a first wireless device, storing a first passphrase comprising a common password and a specific password, transforming the common password into a first finite field (FF) element and the specific password into a second FF element. A first key can be generated using a received third scalar value and third FF element. A commit message can be transmitted with a portion encrypted with the first key. In response to receiving a fourth scalar value and a fourth FF element, generating a second key using at least the fourth scalar value and the fourth FF element, and transmitting a second wireless message with a portion encrypted with the second key. In response to validating a received confirmation message using the second key, establishing encryption keys for a wireless connection using at least the second key. Corresponding devices and systems are also disclosed.
H04L 9/30 - Clé publique, c.-à-d. l'algorithme de chiffrement étant impossible à inverser par ordinateur et les clés de chiffrement des utilisateurs n'exigeant pas le secret
H04W 12/0431 - Distribution ou pré-distribution de clésMise en accord de clés
Methods and systems for generating balanced data sets for speech-based discriminative tasks. The disclosed method includes, among other things, generating, based on a plurality of natural speech recordings, a synthetic speech data set, modifying, based on language science resources, the synthetic speech data set, and generating, based on the modified synthetic speech data set and the plurality of natural speech recordings, a balanced data set for training a discriminative model to perform a speech-based discriminative task.
G10L 15/06 - Création de gabarits de référenceEntraînement des systèmes de reconnaissance de la parole, p. ex. adaptation aux caractéristiques de la voix du locuteur
G10L 13/033 - Édition de voix, p. ex. transformation de la voix du synthétiseur
G10L 15/02 - Extraction de caractéristiques pour la reconnaissance de la paroleSélection d'unités de reconnaissance
47.
FRAMEWORK FOR SUPPORT OF LIMITED-FUNCTION INTERNET-OF-THINGS (IOT) WIRELESS DEVICES
A wireless device includes a front end and a processor coupled to the front end. The processor is to initiate, via the front end, association of the wireless device with an anchor wireless device to communicate with the anchor wireless device. The processor is further to cause the front end to transmit, to the anchor wireless device, management frames including a plurality of bits that specify physical layer (PHY) capabilities. The plurality of bits includes a particular bit that indicates whether the wireless device is an Internet-of-things (IoT) device.
H04W 8/22 - Traitement ou transfert des données du terminal, p. ex. statut ou capacités physiques
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
48.
SYSTEMS, METHODS, AND DEVICES FOR WIRELESS MEDIUM RESERVATION MITIGATION USING CHANNEL SWITCHING ANNOUNCEMENT
Systems, methods, and devices improve medium usage by wireless devices. Methods include determining, using one or more processing elements, a wireless channel switch operation should be performed by a first wireless device and a second wireless device communicating using a first wireless channel, and identifying, using the one or more processing elements, one or more mitigation operations based on data packet activity associated with the wireless channel. Methods further include generating, using the one or more processing elements, a mitigation signal responsive to identifying medium reservation activity within the data packet activity, and initiating, using the one or more processing elements, the wireless channel switch operation to switch to a second wireless channel.
A system to perform high speed passive serial configuration of an FPGA is disclosed. The system includes an MCU that includes an interface, an FPGA coupled to the MCU over the interface, and a flash memory coupled to the MCU and to the FPGA over the interface. The flash memory includes MCU firmware for the MCU and FPGA configuration data for the FPGA. To perform passive serial configuration of the FPGA, the MCU is operable to at least: configure the flash memory to an input/output (IO) mode, place the FPGA in a configuration mode, send a read command over the interface to the flash memory for the FPGA configuration data, and continuously provide a clock signal over the interface to the flash memory until the FPGA configuration data is entirely read.
Systems and methods described herein determine, by a processing device executing on a requesting station, a target wake time (TWT) buffer size, wherein the TWT buffer size indicates a buffer size to allocate at a responding station when the requesting station is in a sleep mode. The systems and methods insert, by the requesting station, a TWT buffer size request into a request message, wherein the TWT buffer size request comprises the TWT buffer size. In turn, the systems and methods transmit the request message from the requesting station to the responding station.
A method can include, by operation of a first wireless device, storing media access control (MAC) addresses for associated devices in first memory circuits of the first wireless device and receiving a wireless request protocol data unit (PDU) via wireless communication circuits. By operation of controller circuits of the first wireless device, determining if the MAC address of the request PDU matches a stored MAC address, and, in response to at least the MAC address of the request PDU matching a stored MAC address, ignoring the request PDU or not transmitting buffered data corresponding to a destination of the matching MAC address. Corresponding devices and systems are also disclosed.
A system includes a host and at least two Bluetooth controllers. The host is configured to execute a Bluetooth protocol stack. The at least two Bluetooth controllers are communicatively coupled to the host. Each Bluetooth controller is configured to wirelessly communicate with at least one respective external device.
A transmitter has a port configured to receive a transmit signal, a first power amplifier connected to the port, a second power amplifier connected to the port, a power supply switch configured to selectively couple one of a first supply voltage terminal or a second supply voltage terminal to one of a supply terminal of the first power amplifier or a supply terminal of the second power amplifier, a first antenna output terminal connected to the first power amplifier, a second antenna output terminal connected to the second power amplifier, and a control unit configured to control the power supply switch based on a transmitter power requirement to provide an amplified transmit signal based on the transmit signal at one of the first antenna output terminal or the second antenna output terminal.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
H03F 3/21 - Amplificateurs de puissance, p. ex. amplificateurs de classe B, amplificateur de classe C comportant uniquement des dispositifs à semi-conducteurs
Techniques are provided for implementing liquid tolerance for a touch device. A sensor array of the touch device is scanned to generate response signals. In response to a response signal exceeding a touch threshold, a signal profile analysis is performed. The signal profile analysis includes sorting the response signals according to ascending order of delta positions to generate sorted signals. An extended vector of the sorted signals is formed. The extended vector of the sorted signals is analyzed using a fitted curve. In response to a feature of the fitted curve satisfying a criteria, the response signal is reported as a touch event. In response to the feature not satisfying the criteria, the response signal is rejected as a false touch.
A method can include, by operation of an access point device (AP), between transmissions of a periodic beacon frame, communicating with each associated station devices (STAs), from communications with the STAs determining connection information for all associated STAs, and generating an information element (IE) that includes the connection information for all associated STAs. During a beacon transmission period, a beacon frame can be transmitted that includes a media access control (MAC) header, a frame body, and a frame check sequence. The frame body can include the IE. Corresponding devices and systems are also disclosed.
H04W 48/10 - Distribution d'informations relatives aux restrictions d'accès ou aux accès, p. ex. distribution de données d'exploration utilisant des informations radiodiffusées
H04W 72/542 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant la qualité mesurée ou perçue
A system includes a portable device and a wireless device. The portable device senses biometric information of a user. The wireless device includes a controller and a radio transceiver. The controller is configured to receive, via the radio transceiver, the biometric information sensed by the portable device and sense, via the wireless device, biometric information of the user corresponding to the biometric information sensed by the portable device. The controller is further configured to compare the biometric information sensed by the portable device to the biometric information sensed by the wireless device to obtain a first comparison result and authenticate the user in response to the first comparison result being less than a first threshold.
A method can include, by operation of a vehicle system, receiving tire profile data for each of a plurality of tires of the vehicle, calculating a target pressure for at least one tire using at least the tire profile data, establishing a wireless connection with a device separate from the vehicle system, and wirelessly transmitting the target pressure to the other device. Corresponding devices and systems are also disclosed.
B60S 5/04 - Alimentation en air pour le gonflage des pneumatiques
B60C 23/04 - Dispositifs avertisseurs actionnés par la pression du pneumatique montés sur la roue ou le pneumatique
B60C 25/00 - Appareils ou outils adaptés pour le montage, le démontage ou l'examen des pneumatiques
G07C 5/08 - Enregistrement ou indication de données de marche autres que le temps de circulation, de fonctionnement, d'arrêt ou d'attente, avec ou sans enregistrement des temps de circulation, de fonctionnement, d'arrêt ou d'attente
A transmitter has an antenna port, a delay unit configured to receive and delay a transmit signal by a first phase amount to generate a first transmit signal component and delay the transmit signal a second phase amount to generate a second transmit signal component, a first power amplifier configured to amplify the first transmit signal component to generate a first amplified signal component, a second power amplifier configured to amplify the second transmit signal component to generate a second amplified signal component, a combiner configured to combine the first amplified signal component and the second amplified signal component to generate an output transmit signal at the antenna port, and a control unit configured to control the first phase amount and the second phase amount during a ramp interval to provide a phase difference between the first transmit signal component and the second transmit signal component.
One or more computing devices, systems, and/or methods are provided. In an example, a human machine interface comprises a guard sensor, a human input sensor adjacent the guard sensor, and a controller. The controller is configured to measure a first response of the guard sensor using a first sensing signal having a first frequency, measure a second response of the guard sensor using a second sensing signal having a second frequency, configure a sensor frequency of the human input sensor based on the first response of the guard sensor and the second response of the guard sensor, measure a first response of the human input sensor using the sensor frequency, and identify a touch event on the human input sensor based on the first response of the human input sensor.
A method can include wirelessly receiving sensor data from at least one vehicle system. By operation of vehicle processing circuits, a vehicle hazard event can be detected using at least the sensor data. In response to detecting the vehicle hazard event, event data for identifying the vehicle hazard event can be generated, time data for the detected vehicle hazard event can be determined, and geographic location data for the detected vehicle hazard event can be determined. By operation of vehicle wireless circuits, an event report can be wirelessly transmitted that includes event data and the geographic location data. Corresponding devices and systems are also disclosed.
A method can include by operation of wireless circuits of a vehicle, wirelessly receiving event data, including an event location; by operation of processing circuits of the vehicle, determining when the vehicle is within a predetermined proximity of the event location; in response to the vehicle being within proximity of the event location, automatically adjusting at least one system of the vehicle according to at least the event data. In response to the vehicle moving beyond the event location, the at least one system can be returned to a previous state or readjusted. Corresponding devices and systems are also disclosed.
G08G 1/0968 - Systèmes impliquant la transmission d'indications de navigation au véhicule
B60W 10/06 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des moteurs à combustion
B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
B60W 10/184 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de freinage avec des freins de roues
B60W 10/22 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de suspension
B60W 30/02 - Commande de la stabilité dynamique du véhicule
B60W 50/14 - Moyens d'information du conducteur, pour l'avertir ou provoquer son intervention
H04W 4/40 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour les véhicules, p. ex. communication véhicule-piétons
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
62.
METHODS, DEVICES AND SYSTEMS FOR DYNAMIC LIMITING OF AGGREGATE PACKET SIZE
A method can include, by operation of first wireless circuits of a device, establishing a maximize size for aggregated packets received on a wireless medium; in response to second wireless circuits of the device using the medium, determining a received packet rate. In response to the received packet rate falling below a limit, the maximum size for aggregated packets received on the medium can be reduced. In response to at least the medium not being used by the second wireless circuits, the maximum size for aggregated packets received on the medium can be increased. The first wireless circuits can operate according to at least a first standard and the second wireless circuits operate according to at least a second standard. Corresponding devices and systems are also disclosed.
Disclosed are techniques to use existing BLE broadcast-based signaling protocols to achieve sub-1 ms peripheral-to-central latency even when multiple peripheral devices share the air-time. The techniques adapt existing BLE advertising or broadcast signaling protocols to efficiently allocate air-time to support frequent peripheral-to-central transmissions that are relatively short in duration and less frequent central-to-peripheral transmissions. A broadcast isochronous group (BIG) protocol may be used to reduce peripheral-to-central latency by aggregating broadcast isochronous streams (BIS) from peripheral devices into a BIG. A one-to-many broadcast event that may carry other broadcast data from the central device to the peripheral devices may be used for time synchronization by the peripheral devices and to configure time parameters of broadcast from the peripheral devices. A reverse many-to-one broadcast from the peripheral devices to the central device may be based on the time parameters. The techniques yield low peripheral-to-central latency and natively support encryption in a BLE controller.
A method of memory allocation is disclosed. An allocation size of memory to allocate is determined. A first memory block is searched for based on the allocation size, where the first memory block is a free memory block. When the first memory block is not found, a first macro block in a memory device is searched for, where the first macro block is an available macro block. When the first macro block is found, the first macro block is powered on, and the first macro block is marked as occupied.
In an embodiment, a method includes connecting a first subset of a set of stages of a power amplifier to a supply voltage, connecting a second subset of the set of stages to a reference voltage different than the supply voltage, switching a third subset of the set of stages according to a switching frequency, assigning numbers of stages in the first subset, the second subset, and the third subset based on a power requirement of the power amplifier, and amplifying a transmit signal using the first subset, the second subset, and the third subset to generate an amplified transmit signal.
Methods and systems for communication and sensing systems. The disclosed method includes, among other things, transmitting, from a first wireless device of a plurality of wireless devices, a sensing signal, receiving, by a second wireless device of the plurality of wireless devices, a set of signals derived from the sensing signal, and determining, based on characteristics of the set of signals, a first distance to each object located near the first wireless device and the second wireless device.
A memory stores an item list in first words and second words such that each first word stores a first portion of two different list items and each second word stores a second portion of the two different list items. Control logic is configured to compare a first portion of a search item to the first portion of each list item in each first word; in response to the first portion of the search item matching a first portion in a first word, determine the first word is a matching first word; compare a second portion of the search item to the second portion of each list item stored in each second word corresponding to each matching first word; and in response to the second portion of the search item matching a second portion of a list item in a second word, determine the search item matches the list item.
A method of operating a Universal Serial Bus Power Delivery (USB-PD) power converter includes responsive to detecting an absence of a load device sending a low power mode signal from a secondary-side controller, coupled to control a secondary-side of the USB-PD power converter, to a primary-side controller coupled to control a primary-side of the USB-PD power converter, and transitioning the secondary-side controller from a secondary-side active mode to a secondary-side low power mode, transitioning the primary-side controller from a primary-side active mode to a primary-side low power mode responsive to receiving the low power mode signal, responsive to detecting a connection of the load device sending an active mode signal from the secondary-side controller to the primary-side controller, and transitioning the secondary-side controller from the secondary-side low power mode to the secondary-side active mode, and transitioning the primary-side controller from the primary-side low power mode to the primary-side active mode.
A system and method for improving coexistence of multilink devices using WLAN protocols. The method includes operating, by a processing device, a first radio of a plurality of radios of a multi-link (ML) device to communicate on a first frequency band with a networking device. The method includes determining a future time interval for a different radio of a communication device to communicate in the first frequency band. The method includes determining a potential interference or an actual interference between the first radio of the plurality of radios and the different radio based on the future time interval of the different radio. The method includes preventing the first radio from communicating in the first frequency during one or more portions of the future time interval to reduce the potential interference or the actual interference.
Implementations disclosed describe numerous techniques and systems facilitating synchronous actions in wireless networks that have a central device (CD) and multiple peripheral devices (PDs) communicating wirelessly with the CD. The CD communicates one or more messages to the PDs and various PDs determine, using communicated messages, a time of a synchronous action to be performed by the PDs. The synchronous action includes an interaction of a respective PD with one or more associated devices communicatively coupled with the PD. Upon completion of the synchronous action, the PDs may transmit data generated by the PDs, or by the one or more associated devices, in connection with the synchronous action.
Implementing a program such as a network connectivity manager in high-performance or low-power mode. The method may include a first microcontroller unit (MCU) receiving a first message while implementing a program in active mode. The first MCU generates and sends a first inter processor communication (IPC) message to a second MCU in response to the first MCU receiving the first message. The first MCU transitions from active mode to sleep mode after the first MCU sends the first IPC message to the second MCU. The second MCU transitions from sleep mode to active mode in response to the second MCU receiving the first IPC message. The second MCU implements the program after transitioning to active mode. The first MCU is in sleep mode while the second MCU implements the program. The second MCU consumes more power operating in active mode than the first MCU consumes while operating in active mode.
The present disclosure provides an approach that captures one or more wireless signals in a geographic area. Each one of the one or more wireless signals includes channel state information (CSI) data. The present disclosure produces a channel state information (CSI) representation based on the CSI data that indicates multiple channel responses corresponding to the one or more wireless signals. The present disclosure filters the CSI representation to remove at least one of the channel responses that correspond to a stationary object within the geographic area to produce a filtered CSI representation. The present disclosure predicts a presence of a moving object within the geographic area based on the filtered CSI representation.
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04B 17/391 - Modélisation du canal de propagation
73.
PRECISE PROXIMITY OBJECT DETECTION FOR CAPACITIVE SENSING
An integrated circuit includes a capacitive sensing circuit to receive signal values associated with a proximity distance to an object. A pair of low pass filters (LPFs) are coupled in parallel to the capacitive sensing circuit and include a first LPF configured with a low filtering rate and a second LPF configured with high filtering rate that is higher than that of the low filtering rate. Control logic is coupled to the pair of LPFs and estimates the proximity distance based on one or more filtered signal values received from the pair of LPFs. The logic causes the second LPF to filter the signal values while the proximity distance remains unchanged. The logic detects a change in the proximity distance beyond a threshold value. The logic causes the first LPF to filter a subsequent signal value received from the capacitive sensing circuit based on detecting the change.
G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection
G01V 3/38 - Traitement de données, p. ex. pour l'analyse, pour l'interprétation ou pour la correction
74.
DEVICES, SYSTEMS AND METHODS FOR ACTIVATING SECOND WIRELESS DEVICE TO MITIGATE AGGRESSIVE MEDIUM OCCUPIER
A method can include, by operation of a first wireless device operating on a channel of a wireless network, determining if another wireless device, operating outside of the wireless network, is interfering with operations of the first wireless device on the channel. In response to determining that another wireless device is interfering with operations, activating a second wireless device to execute a mitigation operation to improve the first wireless device access to the channel. Following the activation of the second wireless device, in response to the first wireless device determining that the other wireless device is not interfering with its operations, deactivating the second wireless device. Corresponding devices and systems are also disclosed.
Technology to intelligently and adaptive share power among charging ports of a multiport power delivery (PD) system is described. In some embodiments, a method includes monitoring power consumption by at least one device of a plurality of devices. Each device of the plurality of devices is connected to a port of a plurality of ports having an allocation of system power. Monitoring the power consumption includes obtaining at least one current measurement of actual current consumption by the at least one device. The method further includes determining whether the at least one current measurement satisfies a threshold condition, and responsive to determining that the at least one current measurement satisfies the threshold condition, causing the system power to be reallocated between each port of the plurality of ports.
According to some embodiments, a method includes connecting a first cluster controller of a first battery cluster to a serial communication bus, connecting a second cluster controller of a second battery cluster to the serial communication bus, sending synchronization data to the first cluster controller and the second cluster controller over the serial communication bus, controlling a first bridge of the first battery cluster to connect a first battery terminal of the first battery cluster to an output terminal based on the synchronization data and a first rank assigned to the first battery cluster to generate a first component of a waveform, and controlling a second bridge of the second cluster to connect a second battery terminal of the second battery cluster to the output terminal based on the synchronization data and a second rank assigned to the second battery cluster to generate a second component of the waveform.
A Universal Serial Bus (USB)-Power Delivery (PD) integrated circuit (IC) controller includes: a first control loop configured to calculate a duty cycle based on a difference between a measured operating parameter of a dynamic load and a reference operating parameter; and a second control loop configured to calculate a duty cycle adjustment value that ensures a maximum supported current to be delivered over a USB Type-C cable to the dynamic load is not exceeded during operation of the dynamic load. The USB-PD IC controller is configured to adjust the duty cycle based on the duty cycle adjustment value, and to power the dynamic load over the USB Type-C cable with a DC voltage having a magnitude that corresponds to the adjusted duty cycle. An electronic system that includes the dynamic load and the USB-PD IC controller is also described.
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
H02P 25/03 - Moteurs synchrones avec excitation sans balai
78.
SYSTEM AND METHOD FOR ISOLATION RESISTANCE MEASUREMENT
A system includes a processing device and a measurement circuit coupled to the processing device. The system further includes an auxiliary voltage supply. The processing device and the measurement circuit are powered by the auxiliary voltage supply. The measurement circuit is to apply a test voltage to a first resistor and measure a voltage drop over the first resistor. The processing device is to determine, based on at least the voltage drop, an isolation resistance value between a chassis ground node and at least one of a battery pack or a battery link of a power system.
G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p. ex. constante de temps
G01R 31/389 - Mesure de l’impédance interne, de la conductance interne ou des variables similaires
G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
79.
Systems, methods, and devices for secure management of wireless device associations
Systems, methods, and devices manage associations between wireless devices. Methods include identifying a plurality of wireless devices communicatively coupled to an access point and generating, using one or more processing elements, a plurality of groups of wireless devices based, at least in part, on a plurality of device classification parameters associated with the plurality of wireless devices. Methods further include generating, using the one or more processing elements, a plurality of containers for the plurality of groups of wireless devices based on network configuration information, and implementing, using the one or more processing elements, the plurality of containers in the access point, wherein each of the plurality of groups of wireless devices has at least one associated container.
H04L 41/08 - Gestion de la configuration des réseaux ou des éléments de réseau
H04L 41/082 - Réglages de configuration caractérisés par les conditions déclenchant un changement de paramètres la condition étant des mises à jour ou des mises à niveau des fonctionnalités réseau
H04L 41/0895 - Configuration de réseaux ou d’éléments virtualisés, p. ex. fonction réseau virtualisée ou des éléments du protocole OpenFlow
According to some embodiments, a battery cluster controller includes a serial interface configured to receive waveform data and a rank over a serial communication bus, a processor configured to generate a switching parameter based on the rank and the waveform data, and a modulation unit configured with the switching parameter to generate a bridge configuration signal to control a bridge for selectively connecting a battery element to an output terminal to generate a first component of a waveform.
Methods and systems for a machine learning model architecture for speech enhancement system. The disclosed machine learning model architecture includes, among other things, an encoder, a decoder, and a bottleneck disposed between the encoder and the decoder. The encoder includes a plurality of encoder layers, and the decoder includes a plurality of decoder layers. Each encoder layer is connected to a corresponding decoder layer via a skip connection. Each encoder layer includes a Res2Net and a squeeze-and-excitation (SE) block. The bottleneck includes a first gated recurrent unit (GRU) layers and a second GRU layer.
G06N 3/0442 - Réseaux récurrents, p. ex. réseaux de Hopfield caractérisés par la présence de mémoire ou de portes, p. ex. mémoire longue à court terme [LSTM] ou unités récurrentes à porte [GRU]
Systems, methods, and devices improve medium usage by wireless devices. Methods include monitoring, using one or more processing elements, one or more data throughput metrics associated with a first wireless device, and identifying, using the one or more processing elements, a presence of medium reservation activity associated with a second wireless device. Methods also include generating, using the one or more processing elements, a mitigation signal based, at least in part, on a designated data pattern, the mitigation signal comprising a plurality of mitigation data packets configured to reduce medium reservation by the first wireless. Methods further include transmitting the mitigation signal to the first wireless device.
An electronic circuit may be configured to obtain an input including one or more hall sensor readings, determine a current motor position based on the input and a first lookup table, determine a desired motor position based on the first lookup table on the current motor position, determine a pulse width modulation (PWM) commutation pattern based on the desired motor position and a second lookup table, and output the PWM commutation pattern within a predetermined time from obtaining the input.
H02P 6/16 - Dispositions de circuits pour détecter la position
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
84.
METHODS, DEVICES AND SYSTEMS FOR COMMUNICATIONS BETWEEN REAL WORLD WIRELESS DEVICES AND VIRTUAL WIRELESS DEVICES
A method can include a virtual/augmented reality (V/AR) access device receiving a list of virtual wireless devices within a predetermined virtual range. An upstream data frame from a real world wireless device can be encapsulated by the V/AR access device into an upstream packet and transmitted to a virtual wireless device. Downstream packets from the virtual wireless device can be decapsulated by the V/AR access device to access a downstream data frame. The downstream data frame can be transmitted to the real world wireless device by the V/AR access device. Corresponding devices and systems are also disclosed.
Methods and systems for groupwise encoding for neural networks. The disclosed method includes, among other things, receiving a sparse array associated with a trained machine-learning model to be stored in memory, identifying a plurality of groupings of elements from the sparse array, wherein each element of a grouping is equidistantly positioned in the sparse array, generating a group data structure including a respective grouping, an offset of a respective grouping in the sparse array, and a distance between each element of the respective grouping in the sparse array for each grouping of the plurality of groupings, and storing each group data structure associated with the plurality of groupings in memory.
An USB-PD power converter with primary and secondary side controllers that bidirectionally communicate with each other. In one embodiment, the USB-PD power converter has a first transformer in data communication with the primary-side controller and the secondary-side controller. The secondary-side controller is configured to generate control signals and receive acknowledgement signals from the primary-side controller via the first transformer. The primary-side controller is configured to generate the acknowledgment signals and receive the control signals from the secondary-side controller via the first transformer.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - Détails d'appareils pour transformation
87.
DUAL ADVANCED AUDIO DISTRIBUTION PROFILE (A2DP) SINK
Wireless communication schemes and techniques are described, wherein a secondary device is configured to eavesdrop information communicated between a source and a primary device. Secondary device transmits a NACK signal to jam ACK signals from the primary device to the audio source, forcing a retransmit of audio information from the source to the primary, and available over an eavesdropping link between the secondary device and the source.
A noise-shaping successive-approximation register (SAR) analog-to-digital converter (ADC) (SAR ADC) including a noise-shaping (NS) filter, a comparator, a differential input path between the NS filter and the comparator, and a cross-coupled set of capacitive elements coupled to the differential input path.
A system includes a first multi-link operation (MLO) device and a second MLO device. The first MLO device is to send a frame to the second MLO device via a first link. The frame includes a link occupancy information field, including link occupancy information of a second link.
A method includes transmitting, by an anchor wireless device over a first radio frequency (RF) band, a first wireless signal to a client wireless device. The client wireless device is an ambient power (AMP) device that harvests environmental energy. The first wireless signal includes a data packet requesting information from the client wireless device. The method further includes receiving, by the anchor wireless device over a second RF band, a second wireless signal from the client wireless device. The second wireless signal includes a data packet responding with the requested information.
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
A DC-DC converter and method of operating the same are provided to increase efficiency in window-mode. Generally, the method begins in a coasting-period with receiving in the converter a window-mode enable signal, and opening a switch through which a low reference voltage generator is coupled to a capacitively-charged switched reference (SR) on a first input of a low-side-comparator. Operation of all circuits and devices in the converter, except the comparator is suspended. The voltage on the SR is compared to a feedback voltage (vfb) coupled to a second input of the comparator from a regulated rail coupled to an output of the converter, to sense a change in the voltage on the regulated rail as it is discharged through a load coupled thereto. When vfb is less than the SR voltage, in a burst-period operation of circuits and devices is resumed, and the switch is closed to recharge the SR.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/00 - Détails d'appareils pour transformation
H02M 3/157 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation avec commande numérique
92.
COMMUNICATING WITH A LARGE NUMBER OF AMBIENT POWER (AMP) DEVICES IN A WIRELESS NETWORK
A system includes an array of antennas that are controllable to generate a directed beam of radio frequency (RF) radiation and an anchor wireless device coupled to the array of antennas. The anchor wireless device transmits, via the array of antennas, a first wireless signal as a first directed beam at a first azimuth towards first identification (ID) tags. The first ID tags are ambient power (AMP) devices that harvests environmental energy. The first wireless signal includes a data packet requesting information. The anchor wireless device further receives, via the array of antennas, second wireless signals from the ID tags, each second wireless signal including a second data packet responding with the requested information for a corresponding ID tag of the ID tags.
A method includes transmitting, by an anchor wireless device, a beacon frame signal to client wireless devices, which are ambient power (AMP) devices. The beacon frame signal advertises at least a first service period during which at least a subset of the client wireless devices are to transmit. The method includes transmitting, by the anchor wireless device, during the first service period, a first wireless signal including a data packet with a command frame to activate the subset of the client wireless devices into a transmission mode. The method includes receiving, from the subset of the client wireless devices in response to detecting the command frame, second wireless signals each including a response data packet. The second wireless signals are received according to a pre-programmed schedule that deconflict transmissions by the subset of the client wireless devices.
Core transmit suspension is provided in multiple core wireless devices, systems, and methods. A first wireless device may transmit a plurality of data packets by a first core and a second core of the first wireless device to a second wireless device. A data packet may be transmitted by at least one of the first core or the second core. The first wireless device may receive a first core acknowledgement (ACK) of the data packet by the first core and a second core ACK of the data packet by the second core from the second wireless device. The first wireless device may determine whether a function of a power metric of the first core ACK and a power metric of the second core ACK satisfies a threshold to produce a result.
Techniques are provided for discharge of a universal serial bus voltage. A determination is made that the universal serial bus voltage has exceeded a threshold. Accordingly, initiation of a discharge operation is triggered to discharge the universal serial bus voltage. The discharge operation includes applying incrementally increasing voltage reference values according to a periodic interval to an amplifier until a discharge trigger point is reached. The amplifier outputs a voltage signal to a gate driver that controls a gate of a transistor that provides a discharge path for the universal serial bus voltage to discharge. In response to reaching the discharge trigger point, the incremental increasing of the voltage reference values applied to the amplifier is stopped.
A method includes receiving a plurality of frames from an access point. The method further includes determining a carrier frequency offset (CFO) estimate for each of the plurality of frames received from the access point. The method further includes computing a final CFO estimate based on the CFO estimates. The method further includes changing, based on the final CFO estimate, a first phase of a radio frequency phase-locked loop (RF PLL) to a second phase.
Systems and methods described herein fan out a source clock signal within the MCU to produce a plurality of clock signals. The systems and methods distribute the plurality of clock signals to a plurality of input/output (I/O) groups within the MCU, wherein each of the plurality of VO groups correspond to a different one of a plurality of power domains of the MCU. The systems and method provide the plurality of clock signals to a plurality of peripherals coupled to the plurality of I/O groups.
Systems, methods, and devices provide coexistence between collocated transceivers in wireless devices. Methods include receiving, at a scheduler, scheduling information identifying activity of a first transceiver during a designated period of time, and identifying, using a scheduler associated with a second transceiver, activity of the second transceiver during the designated period of time, the second transceiver being collocated with the first transceiver in a wireless device. Methods also include scheduling, using the scheduler, activity of the second transceiver based on an overlap of transmit activity of the first transceiver with transmit activity of the second transceiver.
Methods and systems for improving digital pre-distortion calibration of a radio frequency power amplifier. The disclosed method includes, among other things, initiating digital pre-distortion calibration of a power amplifier of a radio frequency (RF) module, determining, based on a transmission power of a training signal transmitted to the power amplifier between a first transmission power value and a second transmission power value, a set of estimated coefficients, generating, based on a subset of the set of estimated coefficients, a set of predicted coefficients, wherein the set of predicted coefficients are derived from a fitting curve applied to the subset of the set of estimated coefficients, and storing the set of estimated coefficients and the set of predicted coefficients.
Implementations disclosed describe techniques and systems for calibrating parameters of a radio frequency power amplifier. The disclosed techniques include, among other things, identifying an initial power amplifier (PA) parameter set of a radio frequency (RF) module. A plurality of candidate PA parameter sets is generated. A set of error values for each of the plurality of candidate PA parameter sets is determined. A subset of the plurality of candidate PA parameter sets is identified. Each error value of the set of error values of each candidate parameter set in the subset satisfies an error threshold. A final PA parameter set is stored.
