Abstract

An optical device includes a substrate and a coating applied to the substrate, wherein the optical device has a first side exposed to an environment and a second side that is unexposed.

IPC Classes  ?

• G02B 1/14 - Protective coatings, e.g. hard coatings
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G02B 1/08 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of polarising materials
• G02B 1/11 - Anti-reflection coatings
• G02B 1/115 - Multilayers
• G02B 1/16 - Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
• G02B 1/18 - Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
• G02B 5/08 - Mirrors
• G02B 5/20 - Filters
• G02B 5/28 - Interference filters

Abstract

A device may receive, from a plurality of sensors, sensor data relating to a user. The device may include a plurality of types of sensors including a spectrometer and one or more of an accelerometer, a heart rate sensor, a blood pressure sensor, a blood sugar sensor, a perspiration sensor, a skin conductivity sensor, or an imaging sensor. The device may process the sensor data, from the plurality of types of sensors, relating to the user to determine a health condition of the user. The device may provide, via a user interface, information identifying the health condition of the user based on processing the sensor data, from the plurality of types of sensors, relating to the user.

IPC Classes  ?

• G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• A61B 5/0205 - Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• A61B 5/021 - Measuring pressure in heart or blood vessels
• A61B 5/024 - Measuring pulse rate or heart rate
• A61B 5/0531 - Measuring skin impedance
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
• A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
• G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
• G01N 33/02 - Food
• G06F 3/04842 - Selection of displayed objects or displayed text elements
• G16H 20/60 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to nutrition control, e.g. diets
• G16H 40/63 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
• G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
• G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

Methods and systems for adjacent channel leakage ratio (ACLR) measurement in a cellular network are provided by creating a measurement timing for a symbol or signal transmitted from a base station of the cellular network in an allocated frequency band, measuring power levels of the signal in the allocated frequency band based on the created measurement timing, and measuring power levels in adjacent bands based on the created measurement timing, and deriving the ACLR measurement from the measured power levels in the allocated frequency band and the measured power levels in the adjacent bands.

IPC Classes  ?

• H04B 17/354 - Adjacent channel leakage power
• H04L 27/26 - Systems using multi-frequency codes

Abstract

A light shaping optic may include a substrate. The light shaping optic may include a structure disposed on the substrate, wherein the structure is configured to receive one or more input beams of light with a uniform intensity field and less than a threshold total intensity, and wherein the structure is configured to shape the one or more input beams of light to form one or more output beams of light with a non-uniform intensity field and less than the threshold total intensity.

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 7/486 - Receivers
• G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar

Abstract

A device may include a multispectral filter array disposed on the substrate. The multispectral filter array may include a first metal mirror disposed on the substrate. The multispectral filter may include a spacer disposed on the first metal mirror. The spacer may include a set of layers. The spacer may include a second metal mirror disposed on the spacer. The second metal mirror may be aligned with two or more sensor elements of a set of sensor elements.

IPC Classes  ?

• H01L 27/146 - Imager structures
• G01J 3/02 - SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details
• G01J 3/26 - Generating the spectrumMonochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filter
• G01J 3/28 - Investigating the spectrum
• G01J 3/36 - Investigating two or more bands of a spectrum by separate detectors
• G01J 3/51 - Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
• G02B 5/28 - Interference filters
• H01L 31/0216 - Coatings
• H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
• H01L 33/60 - Reflective elements
• H10K 50/856 - Arrangements for extracting light from the devices comprising reflective means
• H10K 59/38 - Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

Abstract

Apparatuses and methods for implementing a real-time Open Radio Access Network (O-RAN) fronthaul analyzer are provided. In one example, a hardware accelerator may receive and timestamp packets in an O-RAN fronthaul packet traffic flow, parse and route the time-stamped packets on different circuit paths to one or more hardware packet analyzers, where the one or more hardware packet analyzers generate analytical timing measurements in real-time using the timestamps on the plural packets. In some examples, the hardware accelerator may include a flow tracker to track packet flows and a parser to parse metadata from packet headers and route individual packets onto appropriate circuit paths. In some examples, the real-time O-RAN fronthaul analyzer may be used for testing an O-RAN fronthaul link for compliance with O-RAN standards.

IPC Classes  ?

• H04W 28/18 - Negotiating wireless communication parameters
• H04W 28/086 - Load balancing or load distribution among access entities

Abstract

According to examples, an O-RAN FHA may include a packet analyzer including hardware, an impairment generator, and a Parser to receive packet traffic flows outputted by an O-DU) and/or an O-RU. The Parser may parse packets in the received packet traffic flows, determine which of the received packet traffic flows are to receive impairments, and set action bits for the packets in the packet traffic flows that are to receive impairments, in which the action bits denote information indicating types of impairments to be applied to certain ones of the packet traffic flows. The Parser may also output the packet traffic flows with the action bits set for the packets to the packet analyzer and the impairment generator, in which the impairment generator is to generate impairments on the packet traffic flows based on settings of the action bits for the packets in the packet traffic flows.

IPC Classes  ?

• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 24/08 - Testing using real traffic
• H04W 88/08 - Access point devices

Abstract

An article including a thin film interference pigment; and a coating including a colored selectively absorbing nanoparticles is disclosed. The article can exhibit a change in hue, lightness, and/or chroma as compared to the thin film interference pigment alone. Methods of making the article are also disclosed.

IPC Classes  ?

• G02B 5/22 - Absorbing filters
• G02B 5/28 - Interference filters

Abstract

Systems, apparatuses, and methods for implementing a real-time Open Radio Access Network (O-RAN) fronthaul analyzer and graphical user interface (FHA/GUI) are provided. In one example, a method describes receiving an O-RAN fronthaul (OFH) packet traffic flow; parsing packet headers of the OFH packet traffic flow; identifying and tracking active flows in the OFH packet traffic flow using the parsing; and presenting a visual representation of the active flows using the tracking of active flows. In some examples, the real-time O-RAN FHA/GUI may be used for testing an OFH link for compliance with the O-RAN standards.

IPC Classes  ?

• H04L 41/22 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks comprising specially adapted graphical user interfaces [GUI]
• H04L 43/0852 - Delays

Abstract

A photonic element includes a substrate; a plurality of layers disposed in a stack configuration in a first direction on the substrate; and a first optical transmission component, a second optical transmission component, a third optical transmission component, and a fourth optical transmission component. The first optical transmission component includes two optical transmission structures that are disposed in a first layer, the second optical transmission component includes two optical transmission structures that are disposed in a second layer, the third optical transmission component includes two optical transmission structures that disposed in a third layer, and the fourth optical transmission component includes two optical transmission structures that are disposed in a fourth layer. The second layer and the third layer are each disposed between the first layer and the fourth layer in the stack configuration.

IPC Classes  ?

• G02B 6/122 - Basic optical elements, e.g. light-guiding paths
• G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind

Abstract

A test device determines a Global Navigation Satellite System (GNSS) signal propagation delay in a GNSS signal distribution system (GSDS) for a radio access network. The test device includes a GNSS receiver. The GNSS receiver is connected at different times to a reference GSDS with a known signal propagation delay and to a device under test (DUT), including a second GSDS having an unknown signal propagation delay. One pulse per second (1PPS) signals are generated by the GNSS receiver and are compared to determine the unknown

IPC Classes  ?

• G01S 19/23 - Testing, monitoring, correcting or calibrating of a receiver element

Abstract

A diffuser is disclosed. A system comprising a light source and a diffuser is disclosed. The light source is aligned with a microlens of the diffuser in a static configuration. A method of reducing speckle with the system is also disclosed.

IPC Classes  ?

• F21V 7/00 - Reflectors for light sources

Abstract

A flake including a layer of a diamagnetic material; and at least one additional layer is disclosed. The flake, such as a plurality of flakes, can be dispersed in a liquid medium to form a composition. The composition can be applied to a surface of a substrate to form a security device. A method of making the security device is also disclosed.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• B41M 3/14 - Security printing
• B42D 25/29 - Securities Bank notes
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment

Abstract

A device may receive a downlink signal from a base station and may construct a frozen decode matrix for decoding frozen bits from data of the downlink signal. The device may construct a linear feedback shift register (LFSR) generator matrix for a component of scrambling sequence seed bits and may multiply the frozen decode matrix and the LFSR generator matrix to generate a mapping matrix for mapping a value of a scrambling sequence initialization vector that initializes a scrambler to the frozen bits. The device may determine an inverse matrix of the mapping matrix and may multiply the inverse matrix and the frozen decode matrix to obtain a final matrix. The device may utilize the final matrix to recover, from the data of the downlink signal, the scrambling sequence seed bits used to initialize the component and may perform actions based on the scrambling sequence seed bits.

IPC Classes  ?

• H03M 13/29 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
• H03M 13/13 - Linear codes
• H03M 13/27 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes using interleaving techniques

Abstract

A photonic element includes a substrate; a plurality of layers disposed in a stack configuration in a first direction on the substrate; and a first optical transmission component, a second optical transmission component, a third optical transmission component, and a fourth optical transmission component. The first optical transmission component includes one or more optical transmission structures that are disposed in a first layer, the second optical transmission component includes one or more optical transmission structures that are disposed in a second layer, the third optical transmission component includes one or more optical transmission structures that disposed in a third layer, and the fourth optical transmission component includes one or more optical transmission structures that are disposed in a fourth layer. The second layer and the third layer are each disposed between the first layer and the fourth layer in the stack configuration.

IPC Classes  ?

• G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind

Abstract

Multiple and diverse sensors may be used for antenna monitoring devices. MEMS sensors, electrolytic tilt sensors, thermal mass accelerometers, and/or any other types of tilt sensors may be used. Out of the multiple, diverse tilt sensors, a first sensor (or a first set of sensors) may be used for a first measurement and a second sensor (or a second set of sensors) may be used for augmenting or validating the first measurement. As another example, the second sensor (or the second set of sensors) may be used for correcting errors in the first measurement.

IPC Classes  ?

• H01Q 3/08 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
• G01P 15/18 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration in two or more dimensions

Abstract

A device may receive mobile radio data identifying utilization of a mobile radio network that includes base stations and user devices in a geographical area. The device may process the mobile radio data, with a machine learning feature extraction model, to generate a behavioral representation, that is probabilistic in nature, of invariant aspects of spatiotemporal utilization of the mobile radio network. The device may generate one or more instances of the spatiotemporal utilization of the mobile radio network that reflects the probabilistic nature of a spatiotemporal predictable component of the behavioral representation. The device may utilize the one or more instances of the spatiotemporal utilization of the mobile radio network as a dataset for training or evaluating a system to manage performance of the mobile radio network.

IPC Classes  ?

• H04W 24/02 - Arrangements for optimising operational condition
• G06N 5/022 - Knowledge engineeringKnowledge acquisition
• H04W 16/22 - Traffic simulation tools or models
• H04W 24/08 - Testing using real traffic

Abstract

According to examples, a test instrument may include a radio frequency (RF) receiver to receive RF signals across a range of frequencies, a persistent spectrum analyzer to determine signal strengths of the RF signals across the range of frequencies, and a processing circuit. The processing circuit may determine respective hit rates of the RF signals from the determined signal strengths of the RF signals, detect that a certain RF signal of the RF signals is an interference signal based on the respective hit rates of the RF signals, and output the frequency of the detected interference signal. The use of the hit rates may enable identification of interference signals have relatively low signal power levels.

IPC Classes  ?

• H04B 17/18 - Monitoring during normal operation
• H04B 17/10 - MonitoringTesting of transmitters
• H04B 17/345 - Interference values

Abstract

Temperature stabilization systems and methods for MEMS sensors are disclosed. In an example, a temperature stabilization system may include heating and or cooling components within a printed circuit board (PCB) that holds a MEMS sensor. For example, a resistance heating wire can be used as a heating component and a Peltier device may be used as a heating and or a cooling component. Temperature sensors may be placed on the MEMS sensor itself and or the external environment and the measurements from the temperature sensors can be used to run a feedback loop to the keep the MEMS sensors within a desired temperature range through the use of the heating and or the cooling components.

IPC Classes  ?

• B81B 7/00 - Microstructural systems

Abstract

A device may receive a downlink signal from a base station and may determine an input-output relation of polar encoding based on a vector of the downlink signal. The device may perform an interleaving operation with a matrix and the input-output relation to obtain an interleaved vector and may utilize rate matching with the interleaved vector to determine a scrambling sequence of the downlink signal. The device may utilize a reverse sequence generator with the scrambling sequence to determine a scrambling sequence initialization vector for the scrambling sequence and may perform one or more actions based on the scrambling sequence initialization vector.

IPC Classes  ?

• H03M 13/27 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes using interleaving techniques
• H03M 13/00 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes
• H03M 13/13 - Linear codes

Abstract

A modular network test device can test optical fiber networks or other types of networks. The test device includes a base module to perform network tests and interfaces to connect to removably connectable modules that can perform other network tests and supply additional battery power to the test device. The base module can control charging and discharging of a base module battery and an external battery of a removably connectable module connected to the base module. The base module can determine power requirements of the base module and a removably connectable module to perform network tests, and control power supplied by the base module battery and the external battery to the test device based on the power requirements.

IPC Classes  ?

• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• G01R 31/385 - Arrangements for measuring battery or accumulator variables

Abstract

Improved and accurate electromagnetic field (EMF) measurements of cellular network components such as a base station are performed by establishing a maximum network throughput connection with the desired base station, measuring a synchronization signal between the base station and a user equipment, and determining downlink location (e.g., from System Information Block 1 “SIB1”). Next, a resource block for a basic frame may be configured using timing information of the measured synchronization signal and a bandwidth part (BWP) to be measured in the configured resource block may be selected. The BWP may be selected based on the downlink location in some examples. Alternatively, a BWP corresponding to the maximum traffic may be selected. The EMF measurement may be performed for the configured resource block (selected BWP).

IPC Classes  ?

• H04W 28/20 - Negotiating bandwidth
• H04W 28/02 - Traffic management, e.g. flow control or congestion control

Abstract

An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.

IPC Classes  ?

• G01J 3/02 - SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details
• G01J 3/12 - Generating the spectrumMonochromators
• G01J 3/26 - Generating the spectrumMonochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filter
• G01J 3/28 - Investigating the spectrum
• G01N 21/25 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
• G01N 21/85 - Investigating moving fluids or granular solids
• G02B 5/20 - Filters
• G02B 5/22 - Absorbing filters
• G02B 5/28 - Interference filters
• G02B 5/30 - Polarising elements
• G02B 6/42 - Coupling light guides with opto-electronic elements

Abstract

An article includes a substrate having a first surface and a second surface opposite the first surface; and an optical element on the first surface of the substrate, the optical element comprising an optics region. The first surface of the substrate includes an outer region that extends a distance past the periphery of the optics region. A method of making the article and a method of singulating are also disclosed.

IPC Classes  ?

• G02B 5/02 - Diffusing elementsAfocal elements
• G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements

Abstract

A device may capture, using a camera associated with a microscope, a first image of interstitial material associated with a first set of optical fibers in a field of view of the camera. The device may perform a comparison of the first image of interstitial material and a second image of interstitial material associated with a second set of optical fibers. The device may determine that the first set of optical fibers does not include an expected set of optical fibers based on a result of performing the comparison. The device may determine an amount by which to adjust the field of view of the camera based on the result of performing the comparison. The device may perform one or more actions.

IPC Classes  ?

• G02B 21/00 - Microscopes
• G02B 21/18 - Arrangements with more than one light-path, e.g. for comparing two specimens
• G02B 21/36 - Microscopes arranged for photographic purposes or projection purposes

Abstract

A tip for an optical fiber inspection device includes a body portion that includes a first opening, a second opening, and a chamber that extends within the body portion from the first opening to the second opening. The body portion is configured to allow illumination light to enter through the first opening and to propagate to, and impinge on, a portion of a surface of the chamber. The portion of the surface of the chamber is configured to redirect the illumination light to allow the illumination light to propagate to, and exit through, the second opening and thereby propagate to an angled end face of an optical fiber. The body portion is configured to allow reflection light, reflected by the angled end face of the optical fiber, to enter through the second opening and to propagate through, and exit from, the chamber.

IPC Classes  ?

• G01D 5/26 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light

Abstract

In some implementations, a device may receive a spectroscopic dataset associated with an unknown sample. The device may obtain a multiclass classification model to be used for classification of the unknown sample into at least one class of a plurality of classes; wherein the multiclass classification model comprises a plurality of local auto-scaled one-versus-one (OVO) binary classifiers, each local auto-scaled OVO binary classifier of the plurality of local auto-scaled OVO binary classifiers being associated with a different pair of classes from the plurality of classes. The device may apply local auto-scaling to the spectroscopic dataset associated with the unknown sample to create a local auto-scaled spectroscopic dataset. The device may perform a classification of the unknown sample based on the local auto-scaled spectroscopic dataset and using the multiclass classification model comprising the plurality of local auto-scaled OVO binary classifiers.

IPC Classes  ?

• G06N 20/10 - Machine learning using kernel methods, e.g. support vector machines [SVM]

Abstract

Field programmable gate array (FPGA) based lossless data compression may be used in a test device such as a spectrum analyzer to efficiently reduce the data transfer rate and needed memory. Multi-channel IQ data may be flexibly recorded using multiple lanes of high data rate connections such as JESD204B/C and PCIe between an analog-digital-converter (ADC), the FPGA, and a processor. Bandwidth, sample rate, and/or bit number may determine the IQ data size. When the IQ data size is less than a product of the compression coefficient and the data transfer rate, the lossless compression may be skipped saving logic usage and power consumption in FPGA. Thus, depending on memory and transfer rate perspectives, a decision may be made whether the compression needs to be used or not.

IPC Classes  ?

• H03M 1/12 - Analogue/digital converters
• H04B 1/00 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission

Abstract

According to examples, a test instrument may determine equalization setting values for electrical signals communicated with optical modules. Particularly, the test instrument may automatically determine the equalization setting values that may result in an optimal signal quality metric of electrical signals communicated with an optical module. The test instrument may generate test signals having a plurality of equalization setting value permutations applied to the test signals and may determine respective signal quality metrics of the test signals returned from the optical module. In other examples, the optical module may generate the test signals and the optical module or the test instrument may determine the respective signal quality metrics of the test signals. In either of these examples, the values of the equalization settings may be set to be applied on electrical signals communicated with the optical module to improve a quality of the electrical signal communications with the optical module.

IPC Classes  ?

• H04B 10/073 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an out-of-service signal

Abstract

An optical device may comprise an array of sensor elements that includes a plurality of pixels and a multispectral filter disposed on the array of sensor elements. The multispectral filter may be configured to pass a first transmission percentage of light of a particular spectral range to a first set of pixels of the plurality of pixels and pass a second transmission percentage of light of the particular spectral range to a second set of pixels of the plurality of pixels.

IPC Classes  ?

• G01J 3/28 - Investigating the spectrum
• G01J 3/02 - SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details

Abstract

In some implementations, an integrated circuit may receive a read command associated with a data structure of the integrated circuit. The integrated circuit may determine that requested data, of the data structure and associated with an element within the data structure, is not ready for reading. The integrated circuit may output, based on determining that the requested data is not ready for reading, generated delay data. The integrated circuit may determine that the requested data, of the data structure and associated with the element, is ready for reading. The integrated circuit may output, based on determining that the data is ready for reading, the requested data.

IPC Classes  ?

• G06F 3/06 - Digital input from, or digital output to, record carriers

Abstract

A printing machine including a printing plate on a surface of a rotating cylinder, in which the printing plate has a fixed pattern for receiving a toner; a vessel containing the toner, which includes a pigment and a thermoplastic binder, in which the fixed pattern is a permanent pattern in a form of selected portions of an image is disclosed. A plate for use in the printing machine is also disclosed. A printing system is also disclosed.

IPC Classes  ?

• B41N 1/16 - Curved printing plates, especially cylinders
• B41F 3/54 - Impression cylindersSupports therefor

Abstract

In some examples, high speed bidirectional OTDR-based testing may include transmitting data from a first end of a device under test (DUT) towards an optical time-domain reflectometer (OTDR) that is operatively connected to a second opposite end of the DUT. Further data that is transmitted by the OTDR may be received from the second opposite end of the DUT towards the first end of the DUT. Based on an amplitude of the further data, a direction of receiving of the further data may be adjusted towards a first receiver or towards a second receiver.

IPC Classes  ?

• H04B 10/071 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
• H04B 10/25 - Arrangements specific to fibre transmission
• H04B 10/40 - Transceivers
• H04B 10/50 - Transmitters
• H04B 10/66 - Non-coherent receivers, e.g. using direct detection

Abstract

An optical sensor system may include a light source. The optical sensor system may include a concentrator component proximate to the light source and configured to concentrate light from the light source with respect to a measurement target. The optical sensor system may include a collection component that includes an array of at least two components configured to receive light reflected or transmitted from the measurement target. The optical sensor system may include may a sensor. The optical sensor system may include a filter provided between the collection component and the sensor.

IPC Classes  ?

• G01N 21/359 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
• G02B 19/00 - Condensers

Abstract

In addition to GNSS antennas, other azimuth measurement components such as magnetometers may be provided on antenna alignment devices. The GNSS based azimuth may then be compared against the azimuth measured by the other components and the difference (i.e., the delta) may be calculated. Using the calculated delta and or observing the delta over time, a quality metric is calculated. For example, a lower delta may correspond to a higher quality metric and the higher delta may correspond to a lower quality metric. The quality metric may then be displayed alongside the GNSS based azimuth. The quality metric may then be used by a technician to determine the level of trust (or confidence level) of the GNSS based azimuth.

IPC Classes  ?

• G01S 19/25 - Acquisition or tracking of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
• G01S 19/31 - Acquisition or tracking of other signals for positioning

Abstract

An emitter includes a light emission region configured to emit light associated with a first optical spectrum, a light emission surface, and an optical element disposed on the light emission surface. A first surface of the optical element, which contacts the light emission surface, is configured to reflect light associated with the first optical spectrum. A second surface of the optical element, opposite the first surface of the optical element, is configured to absorb light associated with a second optical spectrum. At least one aperture is formed in the optical element.

IPC Classes  ?

• H01L 33/58 - Optical field-shaping elements

Abstract

In some implementations, an optical interference filter includes a substrate; and a set of layers that are disposed on the substrate, wherein the set of layers includes: a first subset of layers; and a second subset of layers; wherein: each of the first subset of layers includes an aluminum nitride (AlN) material, a stress of each of the first subset of layers is between −1000 and 800 megapascals, the first subset of layers has a first refractive index with a first value, each of the second subset of layers includes at least one other material, the second subset of layers has a second refractive index with a second value that is different than the first value, and the optical interference filter has an effective refractive index greater than or equal to 95% of a highest value of the first value and the second value.

IPC Classes  ?

• G02B 5/28 - Interference filters
• G02B 1/10 - Optical coatings produced by application to, or surface treatment of, optical elements

Abstract

An optical sensor device, includes an optical sensor that has a set of sensor elements, an optical filter that includes a plurality of regions, and one or more processors. A region, of the plurality of regions, includes a first set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a first wavelength range, a second set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a second wavelength range, and a third set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a third wavelength range. The one or more processors are configured to obtain, from the optical sensor, sensor data associated with a scene and determine image information associated with the scene based on the spectral information.

IPC Classes  ?

• G01J 3/51 - Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
• B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
• G01J 3/12 - Generating the spectrumMonochromators
• G01J 3/28 - Investigating the spectrum
• G02B 5/20 - Filters
• H04N 25/13 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements

Abstract

In some implementations, a diffusive optical device includes a glass substrate; a first polymer layer disposed on a first surface of the glass substrate; and a second polymer layer disposed on the first polymer layer. A refractive index of the first polymer layer may be different than a refractive index of the second polymer layer. The first surface of the glass substrate may comprise a central region and a margin region, wherein the first polymer layer is disposed on the central region and not the margin region. The first polymer layer may include a plurality of adhesion promoter molecules that causes the second polymer layer to bond to the glass substrate, wherein at least one adhesion promoter molecule, of the plurality of adhesion promoter molecules, comprises a molecularly flexible spacer.

IPC Classes  ?

• G02B 5/02 - Diffusing elementsAfocal elements
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics

Abstract

Some implementations include a changeable tip of a microscope system for testing an end face of an optical fiber. The changeable tip may include a tip housing having an optical fiber interface at a first end of the housing and configured to be coupled with the end face of the optical fiber and a device interface configured to be coupled with a tip connection interface of an opto-mechanical assembly of the microscope system. The changeable tip also may include at least one tip orientation indicator associated with the tip housing and configured to interact with a tip connection interface of the opto-mechanical assembly to cause a signal indicating tip orientation information associated with the changeable tip to be provided to the imaging device.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• G02B 21/36 - Microscopes arranged for photographic purposes or projection purposes

Abstract

In some implementations, a photonic transmission structure includes a first cladding structure; a first active structure disposed over the first cladding structure; and a second cladding structure disposed over the first active structure. The first active structure includes at least an oxide solution that includes a cation that is titanium.

IPC Classes  ?

• G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
• G02B 6/13 - Integrated optical circuits characterised by the manufacturing method

Abstract

A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.

IPC Classes  ?

• H04B 17/29 - Performance testing

Abstract

A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.

IPC Classes  ?

• B42D 25/369 - Magnetised or magnetisable materials
• B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
• B42D 25/40 - Manufacture

Abstract

An optical device may include a plurality of sensor elements and a plurality of optical channels. The plurality of sensor elements may include a first set of sensor elements associated with a first wavelength range and a second set of sensor elements associated with a second wavelength range. The plurality of optical channels may include a first set of optical channels associated with the first wavelength range and a second set of optical channels associated with the second wavelength range. A first optical channel, of the first set of optical channels, may be disposed over a first sensor element, of the first set of sensor elements, and a second optical channel, of the second set of optical channels, may be disposed over a second sensor element, of the second set of sensor elements.

IPC Classes  ?

• G02B 5/20 - Filters
• G01J 3/51 - Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
• G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements

Abstract

Some implementations include an opto-mechanical assembly of a microscope system for testing an end face of an optical fiber. The opto-mechanical assembly may include an imaging device configured to capture an image of an end face of an optical fiber and a focus assembly comprising a system of lenses configured to focus the image of the end face of the optical fiber for capture by the imaging device; and at least one focus position encoder associated with the focus assembly and configured to determine at least one focus position measurement associated with a position of at least one lens of the system of lenses. The device may use the at least one focus position measurement to determine a magnification associated with the focus assembly.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G02B 6/02 - Optical fibres with cladding
• G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
• H04N 23/67 - Focus control based on electronic image sensor signals

Abstract

In some implementations, a device may receive, from one or more programmable components disposed in a changeable tip of an imaging device, a signal indicating tip configuration information associated with the removable tip. The device may activate software that causes one or more processors to configure, based on the tip configuration information, at least one testing parameter associated with a test to inspect an image of an end face of an optical fiber for compliance with a set of criteria related to a condition of the end face of the optical fiber. The device may output a result of the test that indicates a compliance status associated with the set of criteria.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
• G02B 21/00 - Microscopes
• G02B 21/36 - Microscopes arranged for photographic purposes or projection purposes
• H04N 23/50 - Constructional details

Abstract

An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.

IPC Classes  ?

• G02B 5/28 - Interference filters
• C23C 14/08 - Oxides
• C23C 14/18 - Metallic material, boron or silicon on other inorganic substrates
• C23C 14/54 - Controlling or regulating the coating process
• C23C 14/58 - After-treatment
• G01J 5/0802 - Optical filters
• G02B 1/11 - Anti-reflection coatings
• G02B 1/115 - Multilayers
• G02B 5/20 - Filters
• G06V 40/20 - Movements or behaviour, e.g. gesture recognition
• H04N 5/33 - Transforming infrared radiation
• H04N 13/254 - Image signal generators using stereoscopic image cameras in combination with electromagnetic radiation sources for illuminating objects

Abstract

In some implementations, an optical device may include an aperture, one or more optical elements, an optical filter, and an optical sensor. The aperture may be configured to receive light. The one or more optical elements may be configured to diffuse the light received by the aperture, direct the diffused light to the optical filter via a folded optical path, wherein a length of the folded optical path is greater than a distance between the aperture and an input surface of the optical filter, and cause the diffused light to be distributed across the input surface of the optical filter. The optical filter may be configured to filter the diffused light distributed across the input surface of the optical filter to pass portions of the diffused light associated with one or more wavelengths to the optical sensor.

IPC Classes  ?

• G01J 3/50 - Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors
• G02B 5/20 - Filters
• G02B 6/42 - Coupling light guides with opto-electronic elements
• G02B 17/02 - Catoptric systems, e.g. image erecting and reversing system

Abstract

An article includes a reflector having a first surface, a second surface opposite the first surface, and a third surface; and a first selective light modulator layer external to the first surface of the reflector; wherein the third surface of the reflector is open. A method of making an article is also disclosed.

IPC Classes  ?

• G02F 1/17 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups
• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09D 5/33 - Radiation-reflecting paints
• G02B 1/06 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of fluids in transparent cells
• G02B 1/10 - Optical coatings produced by application to, or surface treatment of, optical elements
• G02B 5/26 - Reflecting filters
• G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
• G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics
• G02F 1/19 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on variable-reflection or variable-refraction elements not provided for in groups

Abstract

A technician's progress may be tracked using a location data from a mobile device being carried by the technician. For instance, when the technician undocks a test instrument, such as a handheld meter for measuring leakage signal, the mobile device may be triggered to track and transmit its locations. Therefore, the test instrument-mobile device combination may continuously generate two pieces of information-leakage signal measurement from the test instrument and the location from the mobile device. Both the test instrument and the mobile device may transmit the corresponding pieces of information to a remote server, which may associate the leakage signal measurements and locations. The present system may have a visibility of the location of the technician and the corresponding leakage signal measurement when the technician is outside the vehicle, compared to the conventional systems that are generally blind in these situations.

IPC Classes  ?

• H04B 17/29 - Performance testing
• G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations

Abstract

An optical device includes a colored reflector layer having a first surface, a second surface opposite the first surface, and a third surface; and a selective light modulator layer external to the first surface of the colored reflector layer. A method of making an optical device is also disclosed.

IPC Classes  ?

• G02B 27/09 - Beam shaping, e.g. changing the cross-sectioned area, not otherwise provided for
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
• G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light

Abstract

There is disclosed a method of training one or more event models for use in identifying events of interest proximal to the sensing optical fibre, from a distributing acoustic sensing signal representing acoustic vibration at positions along a sensing optical fibre. A distributed acoustic sensor is provided and arranged to form a distributed acoustic sensing signal. A calibration defining the mapping between the distributed acoustic sensing signal and positions along the sensing optical fibre is obtained. Events of interest of one or more different event categories are implemented at measured positions along the sensing optical fibre. The distributed sensing signal is formed during the implemented events of interest. For each event of interest, one or more training data subsets of the distributed acoustic sensing signal are defined. These training data sets are defined to be contemporary with the implemented event and spatially positioned within the signal, using the measured positions and the calibration, so as to include the implemented event. The training data subsets are then used to train one or more event models to detect the events of interest.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G06N 3/08 - Learning methods

Abstract

In some implementations, a device may receive information associated with a software log corpus. The device may identify alphanumeric blocks in the software log corpus. The device may encode the blocks to generate numeric encoded blocks. The device may generate a set of input sequences and a set of target sequences based on the encoded blocks and a statistical block length associated with the blocks, wherein the set of target sequences are shifted versions of the set of input sequences. The device may generate a training dataset for embedding computation based on combining the set of input sequences and the set of target sequences into a tuple, partitioning the tuple into batches, and shuffling the batches to obtain the training dataset. The device may generate a set of dense embedding tensors using the training dataset and the encoded blocks.

IPC Classes  ?

• G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]

Abstract

In some implementations, a device may receive training data associated with a set of training command logs and a set of training log masks. The device may generate at least one artificial intelligence model for communications system testing. The device may receive a command log, the command log associated with a first log mask. The device may execute the at least one artificial intelligence model to identify a second log mask for a second set of tests. The device may output information associated with the second log mask for the second set of tests.

IPC Classes  ?

• G06F 40/284 - Lexical analysis, e.g. tokenisation or collocates
• G06F 40/205 - Parsing
• G06F 40/242 - Dictionaries
• G06N 3/044 - Recurrent networks, e.g. Hopfield networks
• G06N 3/08 - Learning methods

Abstract

A device may receive sequential digital signals generated by a radio unit based on receipt of sequential radio frequency waveforms provided to ports of the radio unit by a signal generator and analyzer. The device may calculate uplink direction beamforming performance of the radio unit based on the sequential digital signals. The device may provide data identifying the uplink direction beamforming performance for display.

IPC Classes  ?

• H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
• H04B 17/391 - Modelling the propagation channel
• H04W 24/10 - Scheduling measurement reports
• H04W 72/044 - Wireless resource allocation based on the type of the allocated resource
• H04W 72/21 - Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Abstract

A device may determine whether to utilize perfect channel state information at transmitter (CSIT) or imperfect CSIT, and may calculate, based on determining to utilize the perfect CSIT, a first power allocation, a first rate allocation, and a first precoder allocation for a private stream of a user device. The device may determine first parameters or second parameters for the first power allocation, the first rate allocation, and the first precoder allocation, and may generate a first transmit signal and a first data allocation based on the first power allocation, the first rate allocation, the first precoder allocation, and the first parameters or the second parameters. The device may provide the first transmit signal, with the first data allocation, to the user device via the private stream.

IPC Classes  ?

• H04W 28/18 - Negotiating wireless communication parameters
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received

Abstract

Examples of a bending device to bend fiber optic cables to cause consistent signal attenuations. An example bending device may be a simple non-electronic structure with two pieces slidably attached to each other using a tensioning mechanism (e.g., a spring). The two pieces may define a curved groove with a predetermined radius of curvature. A technician may slide one piece against the tensioning pressure to expose the groove and insert the fiber optic cable. The curved groove bends the fiber optic cable, and the tensioning pressure maintains the bend. In one or more embodiments, one of the two pieces have a second groove defined thereon for bending a fiber optic cable of a different size.

IPC Classes  ?

• G02B 6/36 - Mechanical coupling means

Abstract

According to examples, a system for measuring and analyzing data to generate recommendations associated with a digital subscription line (DSL). Data associated with a DSL is measured according to one or more performance counters. The data is analyzed with respect to one or more thresholds and an anomalous performance event is determined. Also, a recommendation with respect to a performance issue associated with the anomalous performance event is provided.

IPC Classes  ?

• H04B 3/487 - Testing crosstalk effects
• H04B 3/32 - Reducing cross-talk, e.g. by compensating
• H04M 3/30 - Automatic routine testing for subscribers' lines
• H04M 11/06 - Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Abstract

A device may receive a downlink signal from a base station and may construct a frozen decode matrix for decoding frozen bits from data of the downlink signal. The device may construct a linear feedback shift register (LFSR) generator matrix for a component of scrambling sequence seed bits and may multiply the frozen decode matrix and the LFSR generator matrix to generate a mapping matrix for mapping a value of a scrambling sequence initialization vector that initializes a scrambler to the frozen bits. The device may determine an inverse matrix of the mapping matrix and may multiply the inverse matrix and the frozen decode matrix to obtain a final matrix. The device may utilize the final matrix to recover, from the data of the downlink signal, the scrambling sequence seed bits used to initialize the component and may perform actions based on the scrambling sequence seed bits.

IPC Classes  ?

• H03M 13/29 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
• H03M 13/13 - Linear codes
• H03M 13/27 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes using interleaving techniques

Abstract

A device may receive a downlink signal from a base station and may determine an input-output relation of polar encoding based on a vector of the downlink signal. The device may perform an interleaving operation with a matrix and the input-output relation to obtain an interleaved vector and may utilize rate matching with the interleaved vector to determine a scrambling sequence of the downlink signal. The device may utilize a reverse sequence generator with the scrambling sequence to determine a scrambling sequence initialization vector for the scrambling sequence and may perform one or more actions based on the scrambling sequence initialization vector.

IPC Classes  ?

• H03M 13/27 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes using interleaving techniques
• H03M 13/00 - Coding, decoding or code conversion, for error detection or error correctionCoding theory basic assumptionsCoding boundsError probability evaluation methodsChannel modelsSimulation or testing of codes
• H03M 13/13 - Linear codes

Abstract

A photonic system includes a light source and a photonic structure. The photonic structure includes an optical transmission structure and an optical absorption structure. The optical transmission structure is configured to transmit light associated with a first wavelength range. The optical absorption structure is configured to absorb light associated with a second wavelength range. The light source is configured to provide a light beam with a wavelength that is within the second wavelength range to the optical absorption structure. The optical absorption structure is configured to generate and provide heat to the optical transmission structure when the light beam falls incident on the optical absorption structure.

IPC Classes  ?

• G02B 6/42 - Coupling light guides with opto-electronic elements

Abstract

In some implementations, a device may selectively illuminate, via a lighting module of the device, one or more fibers in a fiber optic cable using an illumination pattern. The device may detect, via a detection module of the device, illuminated fibers associated with the fiber optic cable based on the illumination pattern. The device may output, via the detection module of the device, information regarding the illuminated fibers. The device may generate, via one or more processors of the device, a report, based on the information, indicating a fiber mapping between the one or more fibers that were selectively illuminated via the lighting module and the illuminated fibers detected via the detection module.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for

Abstract

An optical article printed on a substrate may include an organic binder; and a plurality of reflective magnetic platelets provided in the organic binder, wherein the plurality of reflective magnetic platelets are substantially aligned in accordance with at least part of a surface of revolution, and wherein the plurality of reflective magnetic platelets are aligned to cause a first reflective effect of the optical article when the substrate is rotated around a first axis and to cause a second reflective effect of the optical article when the substrate is rotated around a second axis, wherein the first reflective effect is different from the second reflective effect.

IPC Classes  ?

• G03G 21/04 - Preventing copies being made of an original
• B41M 3/14 - Security printing
• G07D 7/12 - Visible light, infrared or ultraviolet radiation

Abstract

An optical fiber-based sensing membrane includes at least one optical fiber and a substrate. The at least one optical fiber is integrated in the substrate. The optical fiber-based sensing membrane includes, based on a specified geometric pattern of the at least one optical fiber, an optical fiber-based sensing membrane layout. The substrate includes a thickness and a material property that are specified to ascertain, via the at least one optical fiber and based on the optical fiber-based sensing membrane layout, a thermal property or a mechanical property associated with a device, or a radiation level associated with a device environment.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
• G01K 11/32 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres
• G01K 11/3206 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
• G01K 11/322 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres using Brillouin scattering
• G01K 11/324 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres using Raman scattering
• G01K 15/00 - Testing or calibrating of thermometers
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
• G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
• G02B 6/13 - Integrated optical circuits characterised by the manufacturing method

Abstract

An optical fiber-based sensing membrane includes at least one optical fiber, and a substrate. The at least one optical fiber is integrated in the substrate. The substrate includes a thickness and a material property that are specified to ascertain, via the at least one optical fiber and for a device that is contiguously engaged with a surface of the substrate, includes the substrate embedded in the device, or includes the surface of the substrate at a predetermined distance from the device, a thermal property or a mechanical property associated with the device, or a radiation level associated with a device environment.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
• G01K 11/32 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres
• G01K 11/3206 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
• G01K 11/322 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres using Brillouin scattering
• G01K 11/324 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres using Raman scattering
• G01K 15/00 - Testing or calibrating of thermometers
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
• G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
• G02B 6/13 - Integrated optical circuits characterised by the manufacturing method

Abstract

In some implementations, a user equipment (UE) may perform a decoding of downlink control information (DCI) via a physical downlink control channel (PDCCH) based on: a detection, by the UE, of a UE-specific scrambling sequence and a radio network temporary identifier (RNTI) corresponding to the UE-specific scrambling sequence; and a skipping, by the UE, of a de-scrambling operation prior to the decoding of the DCI, wherein information regarding the UE-specific scrambling sequence and the RNTI is not previously stored by the UE. The UE may refrain from decoding a plurality of possible UE-specific scrambling sequences based on the skipping of the de-scrambling operation prior to the decoding of the DCI.

IPC Classes  ?

• H04W 72/232 - Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
• H04L 1/00 - Arrangements for detecting or preventing errors in the information received

Abstract

A multi-job, multi-job, multi-technician test process automation system is provided. The test process automation system allows a supervisory user to define and assign multiple jobs, where each job may include multiple tests. The jobs may be assigned to different technicians and or different testing devices. Once the tests are performed, the test process automation system may determine whether the test were performed properly. The test process automation system may further determine whether the testing devices have required configuration parameters and may additionally generate reports and business intelligence. The test automation system may be applied to any kind of modern network, including but not limited to, 5G, PON, cable, DSL, transport, and or any other type of network.

IPC Classes  ?

• H04L 43/50 - Testing arrangements

Abstract

According to examples, an optical fiber-based sensing membrane may include at least one optical fiber, and a substrate. The at least one optical fiber may be integrated in the substrate. The optical fiber-based sensing membrane may include, based on a specified geometric pattern of the at least one optical fiber, an optical fiber-based sensing membrane layout. The substrate may include a thickness and a material property that are specified to ascertain, via the at least one optical fiber and based on the optical fiber-based sensing membrane layout, a thermal and/or a mechanical property associated with a device, or a radiation level associated with a device environment. The specified geometric pattern of the at least one optical fiber may include a spiral geometric pattern, and each spiral of the spiral geometric pattern includes no direct neighbor.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis

Abstract

According to examples, an apparatus may include a hardware processor that may determine throughputs at which servers communicated over a network through execution of throughput tests with the servers. The hardware processor may also identify which of the servers communicated over the network at a throughput that meets or exceeds a predefined throughput and may send identifiers of the servers to a test service provider. The test service provider may, in response to receipt of a request for execution of a throughput test that meets or exceeds the predefined throughput, at least one of output an identifier of at least one of the identified servers to execute the throughput test and select one of the identified servers to execute the throughput test. The hardware processor may also cause a test instrument to execute a throughput test with the identified server at or above the predefined throughput.

IPC Classes  ?

• H04L 43/0888 - Throughput

Abstract

A bracket for mounting an antenna to an antenna alignment device may comprise a base bracket and an extension bracket. The extension bracket may comprise a retention clip that may be inserted into a slot in the base bracket. Particularly, the extension bracket with the antenna alignment device may be lifted up with one hand such that the retention clip can be inserted into the slot. The forward weight of the antenna alignment device may pull down the extension bracket to allow the retention clip and the slot to form a retention mechanism. To disengage the retention mechanism, the extension bracket can be pushed forward, then lifted up. Therefore, the combination of the base bracket and the extension bracket may provide a convenient, one-hand installation of an antenna alignment device at different positions at a distance with respect to an external surface of the antenna.

IPC Classes  ?

• H01Q 1/12 - SupportsMounting means
• H01Q 1/20 - Resilient mountings
• H01Q 3/04 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation

Abstract

A method for determining the magnitude of leakage in a subscriber's premises CATV installation; a frequency multiplexer for coupling between an antenna and a receiver for the multiplexed frequencies; and, a method for a technician to certify a CATV subscriber's premises for the provision of CATV services are disclosed.

IPC Classes  ?

• H04N 17/04 - Diagnosis, testing or measuring for television systems or their details for receivers
• G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations
• H04H 20/12 - Arrangements for monitoring, testing or troubleshooting
• H04H 20/78 - CATV [Community Antenna Television] systems
• H04L 12/413 - Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
• H04N 7/10 - Adaptations for transmission by electrical cable
• H04N 7/173 - Analogue secrecy systemsAnalogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
• H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
• H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
• H04N 21/61 - Network physical structureSignal processing

Abstract

In some implementations, a receiver may obtain a digitized output of a radio frequency (RF) analog-to-digital-converter (ADC) of the receiver. The receiver may apply a spur cancellation to the digitized output of the RF ADC to attenuate one or more continuous wave spurs from the digitized output of the RF ADC, wherein the spur cancellation is based on a frequency planning with coherent averaging.

IPC Classes  ?

• H03M 1/06 - Continuously compensating for, or preventing, undesired influence of physical parameters

Abstract

A method, apparatus and system for determining and mapping potential net service impairments using multiple datasets associated with a network.

IPC Classes  ?

• H04B 17/354 - Adjacent channel leakage power
• H04B 17/318 - Received signal strength
• H04W 4/029 - Location-based management or tracking services
• H04W 16/18 - Network planning tools
• H04W 24/08 - Testing using real traffic
• H04W 84/04 - Large scale networksDeep hierarchical networks

Abstract

An example antenna monitoring device according to the disclosed principles is provided with an intermodulation distortion mitigation component. An example intermodulation distortion mitigation component may include a backplate for the antenna monitoring device. The back plate may be made of a substance such as aluminum and may be relatively thin (e.g., in the order of 0.5 mm thickness). When the antenna receives signals, the backplate may block signals with intermodulation distortions from reaching the antenna. When the antenna is to transmit signals, the backplate may block the transmitted signals passing through the antenna monitoring device thereby avoiding the introduction of intermodulation distortion.

IPC Classes  ?

• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
• H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set

Abstract

A test device may be a portable test device that can perform over the air measurements to determine synchronization errors between clusters in a cellular network. The test device can generate a graphical user interface that can show a map of the boundary area between clusters, locations of base stations in the boundary area, locations where over the air measurements were taken by the test device, an indication of whether cells are in synchronization for each measurement location, and a table of actual measurements and derived parameters pertaining to cell phase synchronization, interference and other performance metrics.

IPC Classes  ?

• H04W 56/00 - Synchronisation arrangements
• G01S 19/13 - Receivers
• H04W 4/021 - Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• H04W 24/08 - Testing using real traffic

Abstract

A system includes a computing platform communicatively coupled to multiple network nodes, the computing platform having processing hardware and a memory storing a software code. The processing hardware is configured to execute the software code to detect multiple anomalous performance indicators originating from one or more of the network nodes, determine, using the anomalous performance indicators in an automated process, the occurrence of an incident, and determine the signature of the incident. The processing hardware is further configured to execute the software code to compare the signature to one or more entries in an incident signature database, perform, when the comparison determines that the signature corresponds to one or more of the entries, a root cause analysis of the incident using the corresponding one or more entries, and generate an incident alert including one or both of a result of the root cause analysis and a description of the incident.

IPC Classes  ?

• G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance
• G06N 20/10 - Machine learning using kernel methods, e.g. support vector machines [SVM]

Abstract

An optical filter may include an interference filter that passes at least two channels associated with at least two transmission peaks; and a plurality of blockers, wherein each blocker, of the plurality of blockers, passes a respective channel associated with a respective transmission peak of the at least two transmission peaks and blocks one or more channels other than the respective channel associated with the respective transmission peak.

IPC Classes  ?

• G02B 5/28 - Interference filters
• G02B 5/08 - Mirrors

Abstract

A die including a substrate having a surface defined by paired oppositely-oriented edges; and an optical material, in a non-rectangular shape, and on the surface of the substrate; wherein the optical material does not extend an entire length of any one of the paired oppositely-oriented edges is disclosed, A wafer can including a plurality of the dies. Methods of making the wafer and the die are also disclosed.

IPC Classes  ?

• G02B 5/02 - Diffusing elementsAfocal elements
• G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements

Abstract

An antenna alignment device may have a camera that takes a line-of-sight image. For an antenna alignment device directed to a boresight of an antenna, the line-of-sight image is the “view” from the antenna to the surrounding environment. An antenna radiation pattern, based on the antenna type, may be overlaid on the line-of-sight image. A technician and or other user can therefore observe the radiation pattern vis-à-vis the surrounding environment. Therefore, it can be determined during the initial alignment stage, whether the antenna alignment may have to be changed to account for structures and or other blockages in the surrounding environment rather than just relying antenna alignment based on an ideal model site. The overlaying also speeds up troubleshooting as it can be used to provide clear and specific alignment instructions prior to deploying crew to the antenna site.

IPC Classes  ?

• H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
• H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station

Abstract

A device may receive client delay metrics associated with a client device of a network, network delay metrics associated with the network, server delay metrics associated with a server device of the network, and application delay metrics associated with an application provided by the server device. The device may calculate passive and active client delay scores based on the client delay metrics and the application delay metrics, and may calculate passive and active network delay scores based on the network delay metrics. The device may calculate passive and active server delay scores based on the server delay metrics and the application delay metrics, and may calculate passive and active application delay scores based on the application delay metrics. The device may calculate an end user experience score based on the scores, and may perform actions based on the end user experience score.

IPC Classes  ?

• H04L 43/0864 - Round trip delays
• H04L 43/04 - Processing captured monitoring data, e.g. for logfile generation
• H04L 43/065 - Generation of reports related to network devices
• H04L 67/50 - Network services

Abstract

A device may receive a PDCCH signal, may decode encoded bits of the PDCCH signal to generate coded bits, may reencode the coded bits, and may calculate a detection error probability of each coded bit at an output of soft demodulation. The device may calculate a channel decoding error probability that cyclic redundancy check bits are still attached to the coded bits, and may calculate an error probability of channel reencoding, of each coded bit, due to error propagation of polar decoding and reencoding. The device may calculate a probability density of a BMR associated with the coded bits, and may calculate a threshold based on the detection error probability, the channel decoding error probability, the error probability of channel reencoding, and the probability density of a BMR. The device may determine that the PDCCH signal is invalid based on the BMR being greater than the threshold.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H03M 13/13 - Linear codes
• H03M 13/37 - Decoding methods or techniques, not specific to the particular type of coding provided for in groups

Abstract

A multi-layered article including a substrate; a release layer including polyvinyl alcohol and at least one cross-linking agent; and a first selective light modulator layer; wherein the release layer crosslinks and is water insoluble is disclosed. Also, disclosed is a multi-layered article including a substrate; a waterborne release layer; and a first selective light modulator layer including a cross-linking agent. Methods of making the multi-layered articles are also disclosed.

IPC Classes  ?

• B29C 33/62 - Releasing, lubricating or separating agents based on polymers or oligomers
• B29C 41/02 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of definite length, i.e. discrete articles
• B29C 41/42 - Removing articles from moulds, cores or other substrates
• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
• C09D 5/20 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
• C09D 129/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids

Abstract

According to examples, an optical fiber monitoring apparatus may include an optical time domain reflectometer (OTDR), and a 1×N optical splitter that is optically connected to the OTDR. For N being greater than one, the 1×N optical splitter may include N test port optical fiber outputs. Further, each test port optical fiber output may be optically connectable to an optical fiber to optically connect the optical fiber to the OTDR.

IPC Classes  ?

• H04B 10/071 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
• H04B 10/25 - Arrangements specific to fibre transmission

Abstract

A device may generate a link training and status state machine (LTSSM) test configuration that includes states and paths connecting the states, and may provide the LTSSM test configuration for tracing through by a device under test. The device may receive results associated with tracing through of the LTSSM test configuration by the device under test, and may modify, based on the results, one of the paths of the LTSSM test configuration to include a different one of the states and to generate a modified LTSSM test configuration. The device may provide the modified LTSSM test configuration for tracing through by the device under test.

IPC Classes  ?

• G06F 11/27 - Built-in tests
• G06F 13/42 - Bus transfer protocol, e.g. handshakeSynchronisation

Abstract

An assembly including a first magnet; a substrate positioned above the first magnet, and having a surface for receiving a composition including a plurality of magnetizable platelets; and a second magnet, positioned above the substrate is disclosed. The assembly can be used in a method of making an optical security element. The optical security element and the method of making the optical security element are also disclosed.

IPC Classes  ?

• B42D 25/369 - Magnetised or magnetisable materials
• B42D 25/40 - Manufacture

Abstract

A device may receive software logs identifying raw data and may convert the raw data to a text format, to generate text data. The device may extract pre-log data from the text data and may remove files with less than a threshold quantity of lines from the text data to generate modified text data. The device may extract UE data from the modified text data and may decode RRC messages in the modified text data to generate decoded RRC messages. The device may extract marker data from the modified text data and may remove files associated with timestamps and test cases from the modified text data to generate further modified text data. The device may extract test case data from the further modified text data and may generate final data that includes the pre-log data, the UE data, the decoded RRC messages, the marker data, and the test case data.

IPC Classes  ?

• H04W 24/10 - Scheduling measurement reports
• G06F 18/21 - Design or setup of recognition systems or techniquesExtraction of features in feature spaceBlind source separation
• G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
• G06F 40/143 - Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• G06F 40/289 - Phrasal analysis, e.g. finite state techniques or chunking
• G06N 3/04 - Architecture, e.g. interconnection topology
• G06N 3/08 - Learning methods
• H04W 24/08 - Testing using real traffic

Abstract

A pigment, including a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first inorganic layer encapsulating the flake; and an organic layer encapsulating the first organic layer is disclosed. A colorant composition including the pigment is also disclosed. A method of making the pigment, and a method of making a colorant composition are also disclosed.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09C 3/06 - Treatment with inorganic compounds
• C09C 3/12 - Treatment with organosilicon compounds

Abstract

According to examples, a channel checker optical time-domain reflectometer (OTDR) may include a laser source to emit a laser beam. An optical switch may be optically connected to the laser source to receive the laser beam and to selectively transmit the laser beam to a circulator that is optically connected to a device under test (DUT). A first coupler may be optically connected to a first photodiode and to the circulator. A second coupler may be optically connected to the first coupler, the optical switch, and a second photodiode.

IPC Classes  ?

• H04B 10/07 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems
• H04B 10/071 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
• H04B 10/2537 - Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering
• H04B 10/50 - Transmitters
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
• H04B 10/60 - Receivers
• H04B 10/61 - Coherent receivers

Abstract

In some implementations, an optical component of a microscope may capture an image of a profile of a ferrule and a connector of an optical fiber based on the ferrule being received by a first opening of a first connector adapter of the microscope. A mechanical axis of the ferrule may be orthogonal to an optical path from a camera of the microscope to the ferrule when the ferrule is received by the first opening. One or more processors associated with the microscope may process the image to determine a measurement of a chamfer of the ferrule. The optical component may capture an image of an endface of the ferrule based on the ferrule being received by a second opening of a second connector adapter. The mechanical axis of the ferrule may be axially aligned with the optical path when the ferrule is received by the second opening.

IPC Classes  ?

• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means
• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
• G02B 21/06 - Means for illuminating specimen
• G02B 21/36 - Microscopes arranged for photographic purposes or projection purposes
• G06T 7/60 - Analysis of geometric attributes
• H04N 23/74 - Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

Abstract

An optical measurement device may include a light source; an emission optic configured to direct a first portion of light generated by the light source to a measurement target; a collection optic configured to receive light from the measurement target; an optical conduit configured to direct a second portion of light generated by the light source to a spectral reference; the spectral reference; a sensor; and a filter. A first portion of the filter may be provided between the collection optic and a first portion of the sensor. A second portion of the filter may be provided between the spectral reference and a second portion of the sensor.

IPC Classes  ?

• G01J 3/02 - SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details
• G01J 3/10 - Arrangements of light sources specially adapted for spectrometry or colorimetry
• G01J 3/443 - Emission spectrometry
• G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
• G01N 21/47 - Scattering, i.e. diffuse reflection

Abstract

An image capture device may include a first spectral filter and a second spectral filter arranged so that a panoramic image capture operation captures light filtered by the first spectral filter and light filtered by the second spectral filter in a same region of a combined image and one or more processors to: capture a plurality of images based on the panoramic image capture operation; extract first information and second information from the plurality of images, wherein the first information is associated with the first spectral filter and the second information is associated with the second spectral filter; identify an association between the first information and the second information based on a feature captured in the plurality of images via the first spectral filter and the second spectral filter; and store or provide information based on the association between the first information and the second information.

IPC Classes  ?

• H04N 23/698 - Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
• G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
• G02B 5/20 - Filters
• G03B 11/00 - Filters or other obturators specially adapted for photographic purposes
• G06T 7/00 - Image analysis
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
• H04N 5/265 - Mixing
• H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof

Abstract

A diffuser including a substrate having a first surface and a second surface opposite the first surface; a reflective layer, and a refractive layer, in which the refractive layer has an index of refraction n>1 is disclosed. A system and a method of using the system are also disclosed.

IPC Classes  ?

• G02B 5/02 - Diffusing elementsAfocal elements

Abstract

A test instrument can be coupled to a test point in a passive optical network (PON) to perform an optical network unit (ONU) assignment determination test. The ONU assignment determination test determines a one-to-one assignment of an ONU to an optical line terminal (OLT) in the PON from a downstream signal received during an activation process. The test instrument can capture downstream signals for OLTs of different PONs simultaneously operating on the same optical distribution network to determine ONU assignment for the different PONs in a single test. The test instrument can be a termination mode device.

IPC Classes  ?

• H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
• H04Q 11/04 - Selecting arrangements for multiplex systems for time-division multiplexing

Abstract

In some implementations, a device may receive spectroscopic data associated with a dynamic process. The device may generate a principal component analysis (PCA) model based on a first block of spectra from the spectroscopic data. The device may project a second block of spectra from the spectroscopic data to the PCA model generated based on the first block of spectra. The device may determine a value of a metric associated with the second block based on projecting the second block of spectra to the PCA model. The device may determine whether the dynamic process has reached an end point based on the value of the metric associated with the second block.

IPC Classes  ?

• G01J 3/28 - Investigating the spectrum

Abstract

In an example mounting bracket for an antenna alignment device, a bracket component that abuts an antenna is provided. The bracket component has a relatively large surface area for a wider distribution of the applied clamping force, thereby minimizing high-pressure regions. Generally, the bracket component is made of a first piece and a second piece. The first piece is made of soft material such as e.g., rubber that abuts and grips an exterior surface of the antenna, thereby minimizing the slippage problem when the antenna surface is wet and or mossy. The second piece is made of rigid material such as metal or a metal alloy (e.g., an aluminum alloy) to maintain the structural integrity of the bracket component.

IPC Classes  ?

• H01Q 1/12 - SupportsMounting means
• H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

A system includes a gas turbine having a turbine shaft disposed along a rotational axis, a turbine casing disposed circumferentially about the turbine shaft, a combustion gas path disposed between the turbine shaft and the turbine casing, and a turbine stage disposed in the combustion gas path. The turbine stage includes a plurality of turbine vanes disposed upstream from a plurality of turbine blades. The gas turbine includes an isothermal expansion system coupled to the turbine stage, wherein the isothermal expansion system includes a plurality of flame stabilizers configured to vary axial positions of combustion within a turbine stage expansion of the turbine stage to reduce temperature variations over the turbine stage expansion. The flame stabilizers are disposed in different axial positions over an axial length between leading and trailing edges of the turbine blades, wherein at least one flame stabilizer is coupled to each of the turbine blades.

IPC Classes  ?

• F23R 3/18 - Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
• F23R 3/20 - Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants incorporating fuel injection means
• F23R 3/22 - Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants movable, e.g. to an inoperative positionFlame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants adjustable, e.g. self-adjusting

Abstract

In some examples, a photodiode semiconductor stack may include an absorption layer and a photon trap layer. The photon trap layer is positioned with respect to the absorption layer to absorb at least some photons that are not absorbed in the absorption layer, which may reduce a number of times that multiple photons make round trips in the photodiode semiconductor stack without generating more photocurrent. The recovery time of the photodiode semiconductor stack may be reduced through the decrease in the number of times that the multiple photons make the round trips in the photodiode semiconductor stack.

IPC Classes  ?

• H01L 31/107 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier working in avalanche mode, e.g. avalanche photodiode
• H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds

Abstract

In some implementations, an optical element comprises a glass substrate, a dark mirror coating disposed on a first surface of the glass substrate, and a lens disposed on a second surface of the glass substrate. An aperture is formed in the dark mirror coating, and the aperture is aligned with the lens. The optical element is a monolithic optical element.

IPC Classes  ?

• G02B 1/11 - Anti-reflection coatings
• G02B 5/20 - Filters

Abstract

A distributed optical fibre sensor to measure one or more parameters of an environment as functions of position along a sensing optical fibre passing through the environment, and determines, measures or calculates an OTDR trace or attenuation profile of a sensing optical fibre in a distributed optical fibre sensor. The OTDR trace is to monitored to provide an indicia of properties of the sensing optical fibre in order to determine if the performance of the distributed optical fibre sensor in accurately measuring the desired environmental parameters is compromised. This allows adjustment of operation parameters of the distributed optical fibre sensor to maintain the performance at acceptable levels, or to automatically control the distributed optical fibre sensor in order to at least partly compensate for the changing properties. A distributed optical fibre sensor having such capability is also disclosed.

IPC Classes  ?

• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

A security article includes an optical component that includes a plurality of optical channels with a Fano resonance characteristic. An optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) when the first set of light beams falls incident on at least one of a first surface or a second surface of the optical channel, reflect a second portion of the first set of light beams when the first set of light beams falls incident on the first surface of the optical channel, and reflect at least a portion of a second set of light beams (that are associated with a second wavelength range) when the second set of light beams falls incident on the second surface of the optical channel.

IPC Classes  ?

• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials
• G02B 5/26 - Reflecting filters
• G02B 5/28 - Interference filters
• G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips