| 05th week of 2021 patent applcation highlights part 39 |
| Patent application number | Title | Published |
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| 20210033674 | FIELD WINDING INTERLAYER SHORT-CIRCUIT DETECTION APPARATUS AND FIELD WINDING INTERLAYER SHORT-CIRCUIT DETECTION METHOD - According to the embodiment, a field winding interlayer short-circuit detection apparatus comprises: a field winding resistance calculator to calculate, for a field winding of a rotating electrical machine, a field winding resistance calculated value from a detected value of a field winding current and a detected value of a field winding voltage; a determiner to determine presence or absence of an interlayer short-circuit in the field winding by using a comparison result between the field winding resistance calculated value and the reference resistance value. | 2021-02-04 |
| 20210033675 | DEGRADATION ESTIMATION APPARATUS, COMPUTER PROGRAM, AND DEGRADATION ESTIMATION METHOD - This degradation estimating device is provided with: a state of health (SOH) acquiring unit which acquires the SOH of an energy storing device at a first time point, and acquires the SOH at a second time point later than the first time point; a representative value acquiring unit which acquires a representative value of the state of charge (SOC) of the energy storing device during the period from the first time point to the second time point; and a learning processing unit which causes a learning model to learn on the basis of learning data in which the SOH at the first time point and the representative value serve as input data, and the SOH at the second time point serves as output data. | 2021-02-04 |
| 20210033676 | METHOD FOR DETERMINING A RESISTANCE PARAMETER VALUE OF AN ELECTRICAL ENERGY STORAGE UNIT, AND CORRESPONDING DEVICE, COMPUTER PROGRAM, MACHINE-READABLE STORAGE MEDIUM AND ELECTRICAL ENERGY STORAGE UNIT - A method for determining a resistance parameter value of an electrical energy storage unit is disclosed, comprising the following steps:
| 2021-02-04 |
| 20210033677 | BATTERY MONITOR SYSTEM - In a DC impedance measurement routine for a battery the current load from a source is initially set to a low setting. The system waits for a set time in this state for the voltage readings to stabilize. Once the voltage is stable at the low current setting, the current setting is changed to a high value and the voltage is read quickly. Then the current load is set back to the low setting immediately after the reading is made. Several consecutive measurements are performed by repeating the steps above. A DC impedance measurement system that can be used to carry out the measurement routine. A multi-battery system can be monitored via a DC impedance measurement system and the routine being performed on each battery. | 2021-02-04 |
| 20210033678 | APPARATUS AND METHOD FOR ESTIMATING SOC - The present disclosure relates to a state of charge (SOC) estimating apparatus and method, and more particularly, to a SOC estimating apparatus and method for estimating an initial SOC when a starting light ignition (SLI) battery starts a vehicle. According to an aspect of the present disclosure, there is an advantage of accurately estimating the initial SOC of a vehicle-starting battery that always uses a current regardless of a driving mode or a parking mode of the vehicle. | 2021-02-04 |
| 20210033679 | Apparatus and Method for Diagnosing Current Sensor - An apparatus and method for diagnosing whether a current sensor provided to a battery pack is normal. The apparatus includes: a voltage measuring unit configured to measure a both-end voltage of the cell assembly; a current measuring unit configured to measure a current flowing through the charging and discharging path; and a processor configured to diagnose the current sensor based on a change value of a voltage-based charged charge amount and a change value of a current-based charged charge amount. | 2021-02-04 |
| 20210033680 | DEGRADATION ESTIMATION APPARATUS, COMPUTER PROGRAM, AND DEGRADATION ESTIMATION METHOD - This deterioration estimation device is provided with: an SOH acquisition unit which acquires the SOH of a power storage element at a first time and the SOH at a second time after the first time; and a learning processing unit which trains a learning model on the basis of learning data which, as input data, includes time series data relating to the state of the power storage element from the first time to the second time, and the SOH at the first time and, as output data, includes the SOH at the second time. | 2021-02-04 |
| 20210033681 | Test Method and Test Device for Adapter - The present disclosure provides a test method and a test device for an adapter. The method includes: detecting temperatures of elements in the adapter; determining whether the adapter is in a temperature balance state according to the temperatures of the elements in the adapter; increasing an ambient temperature of an environment where the adapter is located in response to the temperature balance state; detecting an output power of the adapter, and determining whether the adapter performs a power reduction operation before the temperatures of the elements reach a first preset temperature threshold; and determining that a test for the adapter fails when the power reduction operation does not occur. | 2021-02-04 |
| 20210033682 | Test System and Method for Charging Device - The present disclosure provides a test system and method for a charging device. The test system for the charging device includes a load module, a test board and the charging device. A path is formed between the charging device and the load module through the test board. The test board is configured to report a test battery voltage to the charging device. The charging device is configured to receive the test battery voltage, to calculate a path impedance from the charging device to the load module according to the test battery voltage, to adjust an operating state of the charging device according to the calculated path impedance, and to determine whether the charging device needs to enter a protection state, for testing a path impedance protection function of the charging device. | 2021-02-04 |
| 20210033683 | MAGNETIC FLUX SOURCE SYSTEM - One example includes a tunable current element. The element includes a first magnetic flux component that is configured to exhibit a bias flux in response to a first control current. The bias flux can decrease relative energy barriers between discrete energy states of the tunable current element. The element also includes a second magnetic flux component that is configured to exhibit a control flux in response to a second control current. The control flux can change a potential energy of the discrete energy states of the tunable current element to set an energy state of the tunable current element to one of the discrete energy states, such that the magnetic flux component is configured to generate a hysteretic current that provides a magnetic flux at an amplitude corresponding to the energy state of the tunable current element. | 2021-02-04 |
| 20210033684 | MAGNETIC SENSOR - A magnetic sensor includes a radial magnetoresistance element including plural magnetic sensing parts arranged radially from one point, an annular or polygonal magnetoresistance element arranged so as to surround the radial magnetoresistance elements, and at least one half-bridge circuit including the radial magnetoresistance element and the annular or polygonal magnetoresistance element. The radial magnetoresistance element may include a first magnetoresistance element including plural first magnetic sensing parts and a second magnetoresistance element including plural second magnetic sensing parts. The annular or polygonal magnetoresistance element may include an annular or polygonal third magnetoresistance element surrounding the first and second magnetoresistance elements and an annular or polygonal fourth magnetoresistance element surrounding the third magnetoresistance element. Two half-bridge circuits including the first to fourth magnetoresistance elements may be installed in the magnetic sensor. | 2021-02-04 |
| 20210033685 | MAGNETIC FIELD SENSOR, SYSTEM, AND OBLIQUE INCIDENT DEPOSITION FABRICATION METHOD - A magnetic field sensor includes at least two magnetoresistive (MR) sensor elements arranged in a half-bridge configuration. Each of the MR sensor elements includes a magnetic region having a magnetic anisotropy with a resultant magnetization. The magnetic anisotropy is created using an oblique incident deposition (OID) technique, with the magnetic regions being deposited at a nonzero deposition angle relative to a reference line oriented perpendicular to a surface of the magnetic field sensor. A system includes an encoder and the half-bridge configuration of the sensor elements. The encoder produces an external magnetic field, having predetermined magnetic variations in response to motion of the encoder, the magnetic field being detectable by the sensor elements. The resultant magnetization of the sensor elements is aligned by OID in a preferred direction perpendicular to the direction of the external magnetic field instead of utilizing a permanent magnet structure for providing a bias magnetic field. | 2021-02-04 |
| 20210033686 | OPTICALLY PUMPED MAGNETOMETER AND RESONANT CELL FOR A PROBE LIGHT - An optically pumped magnetometer, which comprises: an optically resonant cell filled with an atomic gas, the cell having a resonance frequency; an optical source configured to illuminate the cell with: a pumping light under the effect of which the atoms of the atomic gas undergo an atomic transition, the pumping light having a first frequency that is not tuned to the resonance frequency; and a probe light that undergoes polarization variations when it passes through the cell, the probe light having a frequency that is tuned to the resonance frequency and passing through the cell multiple times; a detector configured to take a polarimetric measurement of the probe light having passed through the cell. | 2021-02-04 |
| 20210033687 | METHODS AND APPARATUS FOR MAGNETIC FIELD SHIMMING - A method of producing a permanent magnet shim configured to improve a profile of a B | 2021-02-04 |
| 20210033688 | MULTI-RESOLUTION QUANTITATIVE SUSCEPTIBILITY MAPPING WITH MAGNETIC RESONANCE IMAGING - Systems and methods for quantitative susceptibility mapping (“QSM”) using magnetic resonance imaging (“MRI”) are described. Localized magnetic field information is used when performing the inversion to compute quantitative susceptibility maps. The localized magnetic field information can include multi-resolution subvolumes obtained by segmenting, or dividing, a field shift map. In some instances, a trained machine learning algorithm, such as a trained neural network, can be implemented to convert the localized magnetic field information into quantitative susceptibility data. These local susceptibility maps can be combined to form a composite quantitative susceptibility map of the imaging volume. | 2021-02-04 |
| 20210033689 | CARTESIAN SAMPLING FOR DYNAMIC MAGNETIC RESONANCE IMAGING (MRI) - A variable density Cartesian sampling method that allows retrospective adjustment of temporal resolution, providing added flexibility for real-time applications where optimal temporal resolution may not be known in advance. The methods provide for a computationally efficient sampling methods where a first step includes producing a uniformly random sampling pattern using a golden ratio on a grid, and the second step is applying a nonlinear stretching operation to create a variable density sampling pattern. Diagnostic quality images may be recovered at different temporal resolutions. | 2021-02-04 |
| 20210033690 | CALIBRATING IMPEDANCE MEASUREMENT DEVICE - A method of calibrating an impedance measurement device for measuring DUT impedance includes performing short calibration measurements using a short calibration standard to obtain short raw data; performing first shunt calibration measurements using a first shunt calibration standard to obtain first raw data, the first shunt calibration standard having known first resistance and unknown first inductance; performing second shunt calibration measurements using a second shunt calibration standard to obtain second raw data, the second shunt calibration standard having known second resistance and unknown second inductance; determining first and second complex impedances of the first and second shunt calibration standards by calculating the first and second inductances using the short, first and second raw data applied to a specific error model; and determining general error coefficients for an error model using the first and second complex impedances and the first and second raw data applied to a one-port calibration procedure. | 2021-02-04 |
| 20210033691 | HYPERBOLIC WAVEFORM FOR CODE-DIVISION MULTIPLE-ACCESS MULTIPLE-INPUT MULTIPLE-OUTPUT RADAR - A hyperbolic waveform multiple-input multiple-output radar includes a generator circuit, multiple transmit circuits, a multiple-input multiple-output antenna, and multiple receive circuits. The generator circuit may be operable to generate a linear frequency modulated signal and a hyperbolic frequency modulated signal. The transmit circuits may be operable to generate multiple transmit signals by analog mixing the linear frequency modulated signal and the hyperbolic frequency modulated signal in response to a plurality of coding family parameters, wherein the transmit signals define an orthogonal family of waveforms. The multiple-input multiple-output antenna may be operable to transmit the transmit signals toward an object and receive multiple receive signals from the object. The receive circuits may be operable to determine multiple data signals in response to the receive signals, wherein the data signals are suitable to determine a distance between the multiple-input multiple-output antenna and the object. | 2021-02-04 |
| 20210033692 | EMERGENCY RADIO BEACON REMOTE ACTIVATION SYSTEM - Provided is a system ( | 2021-02-04 |
| 20210033693 | ULTRASOUND BASED AIR-WRITING SYSTEM AND METHOD - A method for motion tracking and text recognition, the method including a step of generating ultrasound waves with a transmitter; a step of receiving the ultrasound waves at a receiver, the receiver including sensors that record the ultrasound waves; a step of estimating with a processor, angle-of-arrival information for the ultrasound waves; a step of associating the angle-of-arrival information with a gesture; a step of extracting features from the gesture; and a step of classifying the gesture as a specific text character based on the extracted features by comparing the extracted features with known text characters stored in one or more templates. | 2021-02-04 |
| 20210033694 | DETERMINING A LOCATION OF A MOBILE DEVICE - It is provided a method for determining a location of a mobile device. The method comprises the steps of: obtaining a first maximum distance between a first anchor point and the mobile device; generating a first circular geometrical object having a radius based on the first maximum distance; generating a first polytope encompassing the first circular geometric object, wherein all angles of the first polytope are right angles; obtaining a second maximum distance between a second anchor point and the mobile device; generating a second circular geometrical object having radius based on the second maximum distance; generating a second polytope encompassing the second circular geometric object, wherein all angles of the second polytope are right angles; finding a mobile device region as an overlap between the first polytope and the second polytope; and determining that the mobile device is located within the mobile device region. | 2021-02-04 |
| 20210033695 | DISPLACEMENT MEASUREMENT DEVICE - Provided is a displacement measurement device including: a radio wave transmitter installed at a measurement position, which is configured to transmit radio waves of a plurality of frequencies from a transmission antenna; and a radio wave receiver installed at a fixed position. The radio wave transmitter includes: a plurality of reception antennas each configured to output received signals indicating the results of receiving the radio waves of the plurality of frequencies; a relative phase combining unit configured to combine, for the plurality of frequencies, relative phases between the plurality of reception antennas; a relative phase shifting unit configured to shift the relative phase between the plurality of frequencies, which is combined by the relative phase combining unit; and a positioning calculation unit configured to calculate the positioning value of the transmission antenna based on the relative phase shifted by the relative phase shifting unit. | 2021-02-04 |
| 20210033696 | ONE-WAY TIME-OF-FLIGHT LOCALIZATION USING SONIC AND ELECTROMAGNETIC SIGNALS FOR MOBILE AD HOC NETWORKS - A method includes communicating first and second signals between a first node and a second node, where the first signal includes a sonic signal and the second signal includes an electromagnetic signal. The method also includes using the electromagnetic signal to one of start or stop a timer and using the sonic signal to another of stop or start the timer. The method further includes identifying a one-way time-of-flight associated with the sonic signal traveling between the first and second nodes using the timer. The one-way time-of-flight associated with the sonic signal is indicative of a distance between the nodes. | 2021-02-04 |
| 20210033697 | ALIGNING INDOOR MAPS WITH QR-CODES - A method includes obtaining or causing obtaining a reference position of the at least one apparatus based on at least one reference tag located at a predefined position of a map represented by map data of at least part of a structure. The method also includes obtaining or causing obtaining identification information of at least one first wireless access point based on a radio signal of the at least one first wireless access point. The method further includes associating or causing associating a first position determined based on the reference position with at least one of: a position estimate determined based on the identification information of the at least one first wireless access point and a radiomap represented by radiomap data of at least part of a structure; of the identification information of the at least one first wireless access point. A corresponding apparatus is also disclosed. | 2021-02-04 |
| 20210033698 | LOCALIZATION USING SIGNALS TRANSMITTED OVER DIFFERENT SIGNAL PATHS FOR MOBILE AD HOC NETWORKS - A method includes transmitting a first electromagnetic signal from a first node to a second node through free space. The method also includes transmitting a second electromagnetic signal from the first node to the second node through a communication link, where the communication link physically couples the first and second nodes. The method further includes identifying a distance between the first and second nodes based on a time-difference-of-arrival between reception of the first electromagnetic signal at the second node and reception of the second electromagnetic signal at the second node. | 2021-02-04 |
| 20210033699 | OBJECT DETECTION APPARATUS, OBJECT DETECTION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - An object detection apparatus | 2021-02-04 |
| 20210033700 | METHOD AND DEVICE FOR EVALUATING RADAR SIGNALS - An improved evaluation of radar signals, in particular radar signals received by a Uniform Linear Array (ULA) antenna. Through the application of a plurality of different beamformings to the radar signals, drops in the gain can be compensated by the beamforming. | 2021-02-04 |
| 20210033701 | METHOD FOR TRANSMITTING MULTIBEAM STEERING JAMMING SIGNAL, AND TRANSMITTING SYSTEM FOR IMPLEMENTING METHOD - An embodiment of the present invention is a method of transmitting a multibeam jamming signal of an array antenna and including: a signal receiving operation of receiving a radar signal from a plurality of radars; a signal analysis operation of analyzing the received radar signal and identifying an angle and frequency of the signal; a control phase value calculating operation of calculating a control phase value of each array path of the array antenna for each of the identified angles; and a multibeam jamming signal transmission operation of calculating a multibeam jamming signal based on the calculated control phase value and transmitting the multibeam jamming signal for each identified frequency. | 2021-02-04 |
| 20210033702 | MOTOR VEHICLE WITH A RADAR SENSOR AND METHOD FOR OPERATING THE MOTOR VEHICLE - A motor vehicle having at least one radar sensor, which is mounted behind a radome, formed by a component of the motor vehicle to be radiated through, and/or having a radome, wherein the motor vehicle further includes a reference structure having at least one radar-detectable marker, which can be controlled by an adjusting apparatus and moved into a measuring position in the detection area of a radar sensor outside the radome, and a control apparatus configured to control the adjusting apparatus, based on a trigger signal, for moving the reference structure into the measuring position and to evaluate radar data recorded by the radar sensor describing the reference structure in the measuring setting through a comparison with a comparison data set stored in the control apparatus and recorded without deposition on the radome for detection of the potential deposition. The trigger signal indicates a potential deposition, which restricts the performance of the radar sensor, on the radome. | 2021-02-04 |
| 20210033703 | POSITION SENSOR AND POSITION MEASUREMENTS USING MILLIMETER-WAVE METAMATERIAL - A rotation sensor system includes a rotatable target object configured to rotate about a rotational axis in a rotation direction; a first millimeter-wave (mm-wave) metamaterial track coupled to the rotatable target object, where the first mm-wave metamaterial track is arranged around the rotational axis, and where the first mm-wave metamaterial track includes a first array of elementary structures having at least one first characteristic that changes around a perimeter of the first mm-wave metamaterial track; at least one transmitter configured to transmit a first electro-magnetic transmit signal towards the first mm-wave metamaterial track, where the first mm-wave metamaterial track converts the first electro-magnetic transmit signal into a first electro-magnetic receive signal; at least one receiver configured to receive the first electro-magnetic receive signal; and at least one processor configured to determine a rotational position of the rotatable target object based on the received first electro-magnetic receive signal. | 2021-02-04 |
| 20210033704 | ADAPTIVE LASER POWER AND RANGING LIMIT FOR TIME OF FLIGHT SENSOR - A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object. | 2021-02-04 |
| 20210033705 | METHOD AND SYSTEM FOR EMITTING AND RECEIVING LASER PULSES - The system includes a generating unit for generating a pattern of pulses including at least three pulses, two successive pulses of the pattern of pulses being in each case temporarily separated by an associated separation duration, the various separation durations of the pattern of pulses being variable, an emitting/receiving unit including an emitting module for emitting a set of pulses having said pattern of pulses and a receiving module for receiving the light pulses, a memory for recording the reception times at which the light pulses are received by the receiving module, and a processing module for analysing the durations between the reception times of the light pulses in order to identify a sequence of received light pulses, which has said pattern of pulses, and to associate it with the emitted set of pulses. | 2021-02-04 |
| 20210033706 | METHODS AND SYSTEMS FOR AUTOMATICALLY LABELING POINT CLOUD DATA - Methods and systems for automatically labeling point cloud data are disclosed. A method includes obtaining the point cloud data from vehicle sensor modules, randomly selecting three points from the point cloud data, generating a plane hypothesis pertaining to the three points via a random sample consensus (RANSAC) method, selecting one or more points from the point cloud data that are inliers based on the plane hypothesis, sorting the selected points based on a corresponding dataset received from the vehicle sensor modules such that each of a plurality of datasets includes one or more selected points therein, completing a range RANSAC method on each of the datasets to determine one or more inliers of the selected points, repeating each process until a loss function of the range RANSAC method does not decrease, and automatically labeling the inliers of the selected points in each of the plurality of datasets. | 2021-02-04 |
| 20210033707 | DEPTH SENSOR - A system is described. The system includes: a support; a first emitter coupled to the support, facing radially outwardly, and configured to emit a continuous-wave (CW) beam; and a second emitter coupled to the support, facing radially outwardly, and configured to emit a pulsed beam. The system may determine reflectivity using the first emitter and may determine a range using the second emitter. | 2021-02-04 |
| 20210033708 | High-Resolution Solid-State LIDAR Transmitter - A solid-state LIDAR transmitter includes a laser array comprising first and second laser pixels that each generate first and second sub-aperture beams. A first microlens focuses first and second sub-aperture beams generated by the first laser pixel and focuses first and second sub-aperture beams generated by the second laser pixel. A second microlens directs the first and second sub-aperture beams generated by the first pixel such that they overlap at a plane. A lens projects the first sub-aperture beam generated by the first laser pixel and the first sub-aperture beam generated by the second laser pixel with a different angle in the far field in order to achieve a desired spatial resolution of the LIDAR system. | 2021-02-04 |
| 20210033709 | MACROSCOPIC LIDAR DEVICE - A LIDAR device that includes a stator element, and a rotor element that is situated on the stator element. The stator element includes a transmitting device and a receiving device. In the intended mounting position of the LIDAR device on a vehicle, during each half-rotation of the rotor element, a transmission beam of the transmitting device is essentially continuously emittable into a field of view directed toward the front, and a reception beam is essentially continuously receivable from the field of view directed toward the front. | 2021-02-04 |
| 20210033710 | DISTANCE DETECTION DEVICE AND IMAGING APPARATUS - Provided is a distance detection device attached to a position at which it surrounds a camera lens device. The distance detection device has a light emitting element configured to irradiate a target region with irradiation light and a light receiving element configured to receive reflected light of the irradiation light from a target in the target region. The distance detection device acquires distance information indicating a distance to the target on the basis of a time until the light receiving element receives the reflected light after the light emitting element performs irradiation with the irradiation light and communicates the distance information. | 2021-02-04 |
| 20210033711 | OPTICAL CROSSTALK MITIGATION IN LIDAR USING DIGITAL SIGNAL PROCESSING - A method of detecting optical crosstalk in a LIDAR system includes selectively activating and deactivating light sources of a light source array; triggering a measurement of the field of view (FOV) during which at least one targeted region of the FOV is illuminated by the light source array and at least one non-targeted region of the FOV is not illuminated by the light source array; generating electrical signals based on at least one reflected light beam being received by a photodetector array, where the photodetector array comprises a targeted pixel group corresponding to the at least one targeted region of the FOV and a non-targeted pixel group corresponding to the at least one non-targeted region of the FOV; and detecting optical crosstalk that appears at at least one portion of the non-targeted pixel group based on electrical signals from the targeted pixel group and the non-targeted pixel group. | 2021-02-04 |
| 20210033712 | CALIBRATION APPARATUS, CALIBRATION METHOD, AND PROGRAM - Information acquisition units | 2021-02-04 |
| 20210033713 | METHOD AND A DEVICE FOR IMAGING A VISCO-ELASTIC MEDIUM - The invention relates to a method and a device for imaging a visco-elastic medium [ | 2021-02-04 |
| 20210033714 | Electronic Devices Having Millimeter Wave Ranging Capabilities - An electronic device such as a wristwatch may be provided with a phased antenna array for conveying first signals at a first frequency between 10 GHz and 300 GHz and a non-millimeter wave antenna for conveying second signals at a second frequency below 10 GHz. The device may include conductive housing sidewalls and a display. Conductive structures in the display and the conductive housing sidewalls may define a slot element in the non-millimeter wave antenna. The phased antenna array may be mounted within the slot element, aligned with a spatial filter in the display, or aligned with a dielectric window in the conductive housing sidewalls. Control circuitry may process signals transmitted by the phased antenna array and a reflected version of the transmitted signals that has been received by the phased antenna array to detect a range between the device and an external object. | 2021-02-04 |
| 20210033715 | METHODS AND SYSTEMS FOR DETECTING AND PASSIVELY MONITORING COMMUNICATIONS OF AN UNMANNED AERIAL VEHICLE - Methods and systems for detecting and passively monitoring communication of an unmanned aerial vehicle are disclosed. In an example method, a radio frequency spectrum is scanned to detect one or more radio signals transmitted within a pre-defined area. A modulated radio signal of interest from the one or more radio signals is determined. The radio signal of interest is associated with a drone. The radio signal of interest is captured. The radio signal of interest is demodulated to determine coded sensor data carried by the radio signal of interest. The sensor data is determined by the drone. The coded sensor data is decoded to determine a characteristic of the sensor data. An alert is generated based on the characteristic of the sensor data. | 2021-02-04 |
| 20210033716 | System and Method to Reflect Radar Using Aircraft - The present disclosure is directed to scanning radar reflector systems, methods, and apparatuses; even more particularly to a system, method, and apparatus for scanning and reflecting a radar beam transmitted by a radar transmitter onboard an aerial vehicle with radar reflectors equipped on unmanned aerial vehicles. The radar reflection system may include one or more unmanned aerial vehicles equipped with a one or more axis gimbal upon which a radar reflector is mounted. A user may position the unmanned aerial vehicle and the radar reflector to target a specific region for radar scanning. | 2021-02-04 |
| 20210033717 | MULTIPLE INPUT MULTIPLE OUTPUT IMAGING ARRAY AND CORRESPONDING IMAGING METHOD - A multiple input multiple output imaging array for incident angle resolved images with respect to a device under test is provided. The multiple input multiple output imaging array comprises a redundant array of transmit and receive antennas and a controller. In this context, the controller is configured to implement a selection scheme, wherein the selection scheme selects the respective transmit and receive antenna pairs used to create the corresponding image. | 2021-02-04 |
| 20210033718 | RADAR DEVICE AND OBJECT DETECTION METHOD OF RADAR DEVICE - To detect an object present in the vicinity. This radar device | 2021-02-04 |
| 20210033719 | MOTION DETECTION SYSTEM AND MOTION DETECTION DEVICE - A motion detection system includes a first motion detection device that detects a motion of an object based on a reflected wave of a radio wave transmitted by a first radio wave sensor, the first motion detection device including the first radio wave sensor, and a second motion detection device that detects the motion based on a reflected wave of a radio wave transmitted by a second radio wave sensor, the second motion detection device including the second radio wave sensor, wherein one motion detection device among the first and second motion detection devices transmits a determination radio wave and another motion detection device among the first and second motion detection devices receives the determination radio wave, and wherein only the first motion detection device is used to detect the motion when received intensity of the received determination radio wave is smaller than a predetermined threshold. | 2021-02-04 |
| 20210033720 | MERGE-SPLIT TECHNIQUES FOR SENSOR DATA FILTERING - A technique for tracking objects includes: determining a set of detected measurements based on a received return signal; determining a group that includes a set of group measurements and a set of group tracks; creating a merged factor, including a merged set of track state hypotheses associated with a merged set of existing tracks including a first set of existing tracks and a second set of existing tracks, by calculating the cross-product of a first set of previous track state hypotheses and a second set of previous track state hypotheses; determining a first new factor and a second new factor; calculating a first set of new track state hypotheses for the first new factor based on a first subset of the group measurements; and calculating a second set of new track state hypotheses for the second new factor based on a second subset of the group measurements. | 2021-02-04 |
| 20210033721 | SECONDARY RADAR WITH MODE S ADAPTIVE BEAM CONTROL FOR EACH AIRCRAFT - A radar includes an antenna having a radiating pattern forming a sum channel, a radiating pattern forming a difference channel and a pattern forming a control channel, and generates at least interrogation messages on the sum channel and interrogation messages on the control channel; transmits messages via the sum channel and via the control channel respectively, and receives and processes signals received via the sum, difference, and control channels, configured for detecting replies of targets on the signals received via the sum and difference channels and carrying out monopulse processing and RSLS processing on the replies. The transmission is configured such that, for each target, the width of the beam for transmitting interrogations and receiving mode S selective replies is controlled based on the movement window of the target and position of the axis of the antenna in the window, to provide detection of the target by reducing the number of selective interrogations by a selective sub-interrogation of the target while ensuring precise positioning in azimuth: by pre-locating the target at the edge of the main reception lobe of the antenna by deviation measurement between the signals received on the difference and sum channels; and by selectively re-interrogating the pre-located target in mode S by calculation of the roll-call signal nearest to the centre of the main lobe to ensure precision in azimuth, without any other unnecessary supplementary interrogation. | 2021-02-04 |
| 20210033722 | SYSTEM AND METHOD FOR INTER-SENSOR CALIBRATION - A method includes capturing first data with a first sensor and second data with a second sensor in a multi-sensor tracking system, the first and second data corresponding to a path of an object, wherein each of the sensors has a set of initial parameters. The method includes generating a first initial object track using the first data and the first initial parameters and a second initial object track using the second data and the second initial parameters, matching the first and second initial object tracks and determining a degree of correspondence therebetween; and calculating first optimized parameters for the first sensor, wherein, when a first optimized object track is calculated using the first data and the first optimized parameters, the first optimized object track and the second initial object track have a higher degree of correspondence therebetween than the first and second initial object tracks. | 2021-02-04 |
| 20210033723 | RADAR SYSTEM FOR DETECTING PROFILES OF OBJECTS, PARTICULARLY IN A VICINITY OF A MACHINE WORK TOOL - An implement for use with an excavator includes a lightweight housing, a first coupling feature, a ground penetrating radar antenna, a controller, a wireless communication circuit and a rotation unit. The lightweight housing has an upper surface, a lower surface and a cavity. The first coupling feature is located on the upper surface and cooperates with a second coupling feature on an excavator arm. The ground penetrating radar antenna is mounted near the lower surface. The controller is mounted within the cavity and provides outgoing signals to the radar antenna, receives incoming signals from the radar antenna and interprets the incoming signals so as to provide implement output information. The wireless communication circuit is mounted within the cavity and transmits the implement output information. The rotation unit is mounted within the cavity and rotates the housing vis-à-vis the excavator arm. | 2021-02-04 |
| 20210033724 | MULTI-TARGET LIFE DETECTION METHOD BASED ON RADAR SIGNAL AND DETECTION RADAR - Provided is a multi-target life detection method based on radar signals. The method includes: performing time accumulation in a slow time direction on a preprocessed echo signal to obtain a first echo signal; performing an envelope extraction of inflection points on the first echo signal to obtain a second echo signal; calculating an average value of all amplitude signals in the second echo signal other than M marked amplitude signals; and in response to a ratio of a marked amplitude signal to the average value being greater than a threshold, determining that a living target exists at a radar detection distance corresponding to the marked amplitude signal. According to the life detection method of the present disclosure, a normalization method is adopted to normalize signal amplitudes of the radar in a dimension of fast time (distance). In addition, two envelope extractions of inflection points may be performed. | 2021-02-04 |
| 20210033725 | RADAR IMAGE PROCESSING - A method of remote sensing of a body of water comprising: using a radar apparatus installed on a vessel to obtain a plurality of radar intensity images of the surface of the body of water; registering a geographic location of each of the plurality of radar intensity images, wherein registering the geographic location of each of the plurality of radar intensity images comprises: applying one or more of the following calibration offsets to increase image sharpness: an azimuthal alignment error (α) corresponding to an angular offset between a heading recorded by a navigation unit installed on the vessel and a true heading of the vessel; a start range error (β) corresponding to an error in a distance from an antenna to a data processing unit of the radar apparatus for a first range bin in the plurality of radar intensity images; and/or a system time error (γ) corresponding to a total time delay resulting from a time delay due to communication of data between the radar apparatus and the data processing unit and/or a computer-induced time stamp delay between a true image recording time and an image time-stamp; and generating one or more time-integrated images of the surface of the body of water. | 2021-02-04 |
| 20210033726 | METHOD AND APPARATUS FOR PHASE UNWRAPPING OF SYNTHETIC APERTURE RADAR (SAR) INTERFEROGRAM BASED ON SAR OFFSET TRACKING SURFACE DISPLACEMENT MODEL - The present disclosure relates to a method and apparatus for phase unwrapping of an SAR interferogram based on an SAR offset tracking surface displacement model, in which the apparatus according to the present disclosure includes a Synthetic Aperture Radar (SAR) image acquisition unit that acquires two SAR images of a same object acquired at different times, a single look complex (SLC) image production unit that produces two SLC images corresponding to each of the two SAR images, an interferogram production unit that generates an SAR interferogram using SAR interferometry for the two SLC images, a surface displacement model production unit that produces an offset tracking surface displacement model using SAR offset tracking method for the two SLC images, an unwrapped residual interferogram generation unit that generates a residual interferogram by subtracting the SAR interferogram and the offset tracking surface displacement model, and generates an unwrapped residual interferogram by unwrapping the generated residual interferogram, and an unwrapped interferogram generation unit that generates an unwrapped SAR interferogram by adding the unwrapped residual interferogram to the offset tracking surface displacement model. | 2021-02-04 |
| 20210033727 | ELECTRONIC DEVICE, CONTROL METHOD OF ELECTRONIC DEVICE, AND CONTROL PROGRAM OF ELECTRONIC DEVICE - An electronic device includes a controller that performs control to enable switching between a first band mode such that a transmission wave is in a first band and a second band mode such that the transmission wave is in a second band broader than the first band. The controller performs control to switch to the second band mode when an object is detected within a predetermined distance in the first band mode. | 2021-02-04 |
| 20210033728 | TARGET POSITIONING DEVICE AND METHOD BASED ON PLECOTUS AURITUS DOUBLE-PINNA BIONIC SONAR - A target positioning device and method based on a plecotus auritus double-pinna bionic sonar. An echo positioning device based on bionic pinnae of a bat can determine an azimuth and an elevation of a target to locate the spatial location of the target by using echoes obtained by two array elements, resolving a problem that two array element antennas cannot locate the space coordinates. In a positioning method based on bionic pinnae of a bat according to filtering characteristics of bat ears, a method for estimating a spatial location by a neural network is used, and a pulse string estimation method is used to reduce the error of estimated angles, to obtain a precise azimuth and elevation. | 2021-02-04 |
| 20210033729 | TECHNOLOGIES FOR ACTING BASED ON OBJECT TRACKING - This disclosure enables various technologies involving various actions based on tracking an object via a plurality of distance sensors, without synchronizing carrier waves of the distance sensors or without employing a PLL technique on the distance sensors. | 2021-02-04 |
| 20210033730 | DISTANCE MEASURING DEVICE, DISTANCE MEASURING SYSTEM, DISTANCE MEASURING METHOD, AND PROGRAM - A distance measuring device is to be connected to a wave transmitter and a wave receiver. The distance measuring device includes a distance measuring unit, which calculates a distance to the target based on a time interval between transmission of a measuring wave from a wave transmitter and reception of the measuring wave at a wave receiver. The target may be present across a preceding distance range and a succeeding distance range which are continuous with each other and both of which belong to a plurality of distance ranges defined by dividing a measurable distance range. In such a situation, the distance measuring unit calculates the distance to the target based on respective amounts of a preceding wave received at the wave receiver over a period corresponding to the preceding distance range and a succeeding wave received at the wave receiver over a period corresponding to the succeeding distance range. | 2021-02-04 |
| 20210033731 | UNWRAPPED PHASES FOR TIME-OF-FLIGHT MODULATION LIGHT - Adaptive phase unwrapping for a time-of-flight camera. A scene is illuminated with modulation light having two or more frequencies that do not have a common integer denominator. The modulation light that is reflected off objects within the scene is received at a sensor array. The received modulation light is then processed and weighted in the complex domain to determine unwrapped phases for each of the two or more frequencies of modulation light. | 2021-02-04 |
| 20210033732 | USE OF FREQUENCY OFFSETS IN GENERATION OF LIDAR DATA - A LIDAR system that generates an outgoing LIDAR signal and multiple composite light signals that each carries a different channel and that each includes a contribution from a reference signal and a contribution from a comparative signal. The comparative signals each include light from the outgoing LIDAR signal that has been reflected by one or more objects located outside of the LIDAR system. The reference signals each include light from the outgoing LIDAR signal but exclude light that has been reflected by any object located outside of the LIDAR system. Electronics induce a frequency offset in the reference signals between a LIDAR data period and a channel period. The electronics use the composite signals generated during the LIDAR data period to generate LIDAR data and the composite signals generated during the channel period to associate the composite signals with the channel carried by the composite signal. | 2021-02-04 |
| 20210033733 | PROGRAMMABLE LIGHT CURTAINS - Embodiments described herein are generally directed to a device that monitors for the presence of objects passing through or impinging on a virtual shell near the device, referred to herein as a “light curtain”, which is created by rapidly rotating a line sensor and a line laser in synchrony. The boundaries of the light curtain are defined by a sweeping line defined by the intersection of the sensing and illumination planes. | 2021-02-04 |
| 20210033734 | FOG DETERMINATION APPARATUS, FOG DETERMINATION METHOD, AND COMPUTER READABLE MEDIUM - A point data acquisition unit acquires a set of point data indicating reflection points obtained by an optical sensor that receives reflected light of an emitted light beam reflected at the reflection points. Point data is a pair of first point data indicating a first reflection point, which is a reflection point of a given light beam, and second point data indicating a second reflection point, which is a reflection point at which the intensity of reflected light of the given light beam is lower than that at the first reflection point. A fog determination unit determines the density of fog based on a distribution of a distance between the first reflection point and the second reflection point concerning the point data included in the acquired set. | 2021-02-04 |
| 20210033735 | SYSTEM AND METHOD FOR GAUSSIAN PROCESS ENHANCED GNSS CORRECTIONS GENERATION - A system and method for generating a set of GNSS corrections using a GNSS corrections model comprising a Gaussian process. | 2021-02-04 |
| 20210033736 | SATELLITE POSITIONING SIGNAL RECEIVING DEVICE - A satellite positioning signal receiving device that performs positioning using satellite observation information in a plurality of frequency bands enables gradual addition in accordance with a required number of frequency bands. The satellite positioning signal receiving device includes at least one satellite positioning signal receiving circuit that supports a single frequency band, receives a satellite positioning signal, and generates satellite observation information. Each of the satellite positioning signal receiving circuits includes a synchronization control interface that synchronizes the satellite positioning signal receiving circuits with each other, and a satellite information transmission interface that shares the satellite observation information between the satellite positioning signal receiving circuits. The satellite positioning signal receiving device performs positioning on the basis of satellite observation information. | 2021-02-04 |
| 20210033737 | SYSTEM AND METHOD FOR INDOOR LOCATION - Systems and methods enabling location determination within an indoor environment. In an embodiment, a plurality of stationary nodes are arranged as a constellation within the indoor environment. Each of the plurality of stationary nodes may be configured to transmit a ranging signal, receive ranging signals transmitted by one or more neighboring ones of the plurality of stationary nodes, calculate an offset between the ranging signal that the stationary node transmits and the ranging signals received from the one or more neighboring stationary nodes, and include the offset in the ranging signal that the stationary node transmits. | 2021-02-04 |
| 20210033738 | POSITIONING METHOD, APPARATUS AND DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM - A positioning method, apparatus, device, and a computer storage medium are provided. The method includes: obtaining update information of an object, the update information including GPS positioning information and dead reckoning position information, the dead reckoning position information being determined according to attitude change information of the object measured by an inertial measurement unit (IMU); determining a fusion positioning model matching the update information, the fusion positioning model being used for performing fusion positioning using the update information; determining error information of the update information, the error information indicating error conditions of the update information; and performing the fusion positioning on the GPS positioning information and the dead reckoning position information of the update information according to the fusion positioning model with the error information to obtain a current position of the object. | 2021-02-04 |
| 20210033739 | TRANSLATABLE EAT SENSING MODULES AND ASSOCIATED MEASUREMENT METHODS - A system of translatable electro acoustic technology (EAT) modules for deployment along an oil or gas wellbore casing comprises: a wireline/slickline optical distributed acoustic sensing (DAS) cable deployed from the surface into the casing and connected to a surface interrogator; a tractor attached to the downhole end of the wireline/slickline optical distributed acoustic sensing (DAS) cable; and one or more EAT sensing modules that can be coupled to or decoupled from the wireline/slickline optical distributed acoustic sensing (DAS) cable at pre-selected locations and can either be coupled to or decoupled from the casing of the wellbore or be allowed to reposition along the wellborn casing, wherein the one or more EAT sensing modules can conduct multiple measurements and communicate the results via the wireline/slickline optical distributed acoustic sensing (DAS) cable to the surface interrogator. | 2021-02-04 |
| 20210033740 | DEBLENDING USING DICTIONARY LEARNING WITH VIRTUAL SHOTS - Systems and methods include a method for deblending signal and noise data. A shot domain for actual sources, a receiver domain for virtual sources, and a receiver domain for actual sources are generated from blended shot data. A dictionary of signal atoms is generated. Each signal atom includes a small patch of seismic signal data gathered during a small time window using multiple neighboring traces. A dictionary of noise atoms is generated. Each noise atom includes a small patch of seismic noise data gathered during a small time window using multiple neighboring traces. A combined signal-and-noise dictionary is generated that contains the signal atoms and the noise atoms. A sparse reconstruction of receiver domain data is created from the combined signal-and-noise dictionary. The sparse reconstruction is split into deblended data and blending noise data based on atom usage to create deblended shot domain gathers for actual sources. | 2021-02-04 |
| 20210033741 | NON-UNIFORM OPTIMAL SURVEY DESIGN PRINCIPLES - Method for acquiring seismic data is described. The method includes determining a non-uniform optimal sampling design that includes a compressive sensing sampling grid. Placing a plurality of source lines or receiver lines at a non-uniform optimal line interval. Placing a plurality of receivers or nodes at a non-uniform optimal receiver interval. Towing a plurality of streamers attached to a vessel, wherein the plurality of streamers is spaced apart at non-uniform optimal intervals based on the compressive sensing sampling grid. Firing a plurality of shots from one or more seismic sources at non-uniform optimal shot intervals. Acquiring seismic data via the plurality of receivers or nodes. | 2021-02-04 |
| 20210033742 | ACOUSTIC INTEGRITY IMAGING - Various embodiments include methods and apparatus structured to investigate a structure of multiple strings of pipe in a wellbore and material around the pipes in the wellbore. An array of acoustic receivers can be used to monitor sound energy from the structure and material within and around the structure. The received sound energy can be segregated and coherent signal processing of the received sound energy can be conducted with respect to location. A bond map of the structure and regions around the multiple strings of pipe can be derived from the coherent signal processing. Additional apparatus, systems, and methods can be implemented in a variety of applications. | 2021-02-04 |
| 20210033743 | FERROMAGNETIC SENSING - An apparatus including two or more spaced apart ferromagnetic sensors arranged to detect and screen ferromagnetic objects, and, when a ferromagnetic object is detected, the screening is configured to be substantially independent of the sensor-object distance. | 2021-02-04 |
| 20210033744 | ELECTROMAGNETIC WAVE DETECTION APPARATUS AND INFORMATION ACQUISITION SYSTEM - An electromagnetic wave detection apparatus ( | 2021-02-04 |
| 20210033745 | SENSOR SYSTEM WITH AN ATTACHMENT ELEMENT FOR A MANNED OR UNMANNED AIRCRAFT - The present disclosure relates to a remote sensing system, comprising: an air towable housing for carrying one or more sensors, the air towable housing and/or a comprising at least a first pulley. | 2021-02-04 |
| 20210033746 | Systems and Methods for Determining Properties of Porous, Fluid-Filled Geological Formations Based on Multi-Frequency Measurements - Aspects of the present disclosure relate to a method for determining a wettability of one or more types of solid particles within a geological formation. The method may include receiving a plurality of electromagnetic measurements within a frequency range from an electromagnetic well-logging tool. The method may also include determining a contact angle associated with at least one type of solid particles within the geological formation using the electromagnetic measurements. | 2021-02-04 |
| 20210033747 | LIGHT CURTAIN SAFETY SYSTEM - A system to detect obstacles includes a power beam transmission circuit, a power beam reception circuit arranged to receive a power beam from the power beam transmission circuit, an emitter module, and a detector module arranged to distinguish between a first characteristic and a second characteristic. The emitter module includes a first emitter arranged to emit a first signal having the first characteristic, the first signal emitted in proximity to the power beam, and a second emitter arranged to emit a second signal having the second characteristic, the second characteristic different from the first characteristic, the second signal emitted in proximity to the first signal. The detector module includes a first detector arranged to respond to the first signal emitted by the first emitter, wherein the detector module is arranged to determine when an obstacle is in or near a line-of-sight transmission path between the first emitter and the first detector. | 2021-02-04 |
| 20210033748 | Runtime Parameter Selection in Simulations - A method for performing a field operation of a field. The method includes obtaining historical parameter values of a runtime parameter and historical core datasets, where the historical parameter values and the historical core datasets are used for a first simulation of the field, and where each historical parameter value results in a simulation convergence during the first simulation, generating a machine learning model based at least on the historical core datasets and the historical parameter values, obtaining, during a second simulation of the field, a current core dataset, generating, using the machine learning model and based on the current core dataset, a predicted parameter value of the runtime parameter for achieving the simulation convergence during the second simulation, and completing, using at least the predicted parameter value, the second simulation to generate a modeling result of the field. | 2021-02-04 |
| 20210033749 | LIGHTING DAMAGE PREDICTION DEVICE, METHOD, AND PROGRAM - A lightning damage prediction apparatus that predicts a risk of a failure of access equipment due to a lightning strike is provided. A regression equation representing a relationship between a lightning strike density for each section in a prediction target area, an equipment density for each section of components of a plurality of types constituting equipment, and a lightning damage failure density for each section of the equipment or the component, corresponding to a first period in the past, is generated, and a lightning damage failure density for each section of a prediction target area corresponding to a second period is predicted on the basis of a lightning strike density and an equipment density for each section in the prediction target area corresponding to the second period that is a prediction target, and the regression equation. | 2021-02-04 |
| 20210033750 | Compact Star Tracker with Photonic Crystal Pointing - A star tracker includes imaging optics comprising a folding mirror, a lens, and a detector. The folding mirror bends light received from an optical axis through the lens that focuses the bent light onto the detector. The star tracker includes a steering mechanism that steers light from an adjustable field of view (FOV) to the optical axis of the imaging optics. The steering mechanism includes: (i) a first photonic crystal element comprising beam pointing spatially variant photonic crystals (SVPCs); (ii) a second photonic crystal element comprising beam pointing SVPCs that is positioned adjacent and axially aligned with the first photonic crystal element; and (iii) a housing that receives the first and second photonic crystal elements for independent rotation. | 2021-02-04 |
| 20210033751 | LOW REFLECTANCE, ANTI-REFLECTIVE FILM STRUCTURES WITH CONTROLLED COLOR AND ARTICLES WITH THE SAME - An article is described herein that includes: a translucent substrate having a major surface; and an anti-reflective coating disposed on the major surface and forming an anti-reflective surface. The article exhibits a single side average photopic light reflectance at the anti-reflective surface of less than 0.35%. Further, the article exhibits a single side color shift (ΔC) of less than 6 over an incident angle range from 0 degrees to 60 degrees incidence at the anti-reflective surface, wherein the anti-reflective coating comprises a physical thickness from about 50 nm to less than 500 nm. In addition, the anti-reflective coating comprises a plurality of layers that comprises at least one low refractive index layer and at least one high refractive index layer. Further, each high refractive index layer has a refractive index of greater than 2.0 and each low refractive index layer has a refractive index of less than 1.7. | 2021-02-04 |
| 20210033752 | THIN FILM OPTICAL LENS DEVICE - A thin film optical lens device includes a first light-permissive film and a second light-permissive film. The first light-permissive includes first micro-lenses, a first light incident surface, and a first light illuminating surface opposite to the first light incident surface. The first micro-lenses are two-dimensionally arranged to form a first micro-lens array. The second light-permissive film includes second micro-lenses, a second light incident surface, and a second light illuminating surface opposite to the second light incident surface. The second micro-lenses are two dimensionally arranged to form a second micro-lens array. The second light incident surface faces the first light illuminating surface. The first micro-lens array and the second micro-lens array correspondingly produce the moiré pattern effect to provide an image magnification effect. | 2021-02-04 |
| 20210033753 | MICRO-LENS ARRAY AND METHOD OF MANUFACTURING THE SAME - A micro-lens array includes a shutter bezel substrate, a first lens substrate having a first inner surface in contact with a first surface of the shutter bezel substrate, a first lens array disposed at a first outer surface of the first lens substrate that is opposite to the first inner surface of the first lens substrate, a second lens substrate having a second inner surface in contact with a second surface of the shutter bezel substrate, and a second lens array disposed at a second outer surface of the second lens substrate that is opposite to the second inner surface of the second lens substrate. At least one of the first lens substrate or the second lens substrate includes an alignment mark that is configured to guide placement of the first lens array on the first lens substrate and the second lens array on the second lens substrate. | 2021-02-04 |
| 20210033754 | OPTICAL BAFFLE - An optical baffle is provided that maximizes light reflection and absorption and, thus, enables a spacecraft camera to capture images of extremely faint objects, such as stars, while illuminated by a very bright source, such as the sun. The optical baffle may be manufactured by additive manufacturing techniques and unique materials to create unique geometry and very absorbent surfaces to trap light. | 2021-02-04 |
| 20210033755 | DECORATIVE MEMBER - The present application relates to a decorative member including a color developing layer including a light reflective layer and a light absorbing layer provided on the light reflective layer; and a substrate provided on one surface of the color developing layer, wherein the light absorbing layer includes a copper oxide (Cu | 2021-02-04 |
| 20210033756 | WAVELENGTH CONVERTING ELEMENT, LIGHT SOURCE DEVICE, AND DISPLAY DEVICE - A wavelength converting element according to the present disclosure includes: a wavelength converting body including an incident surface and an exit surface and configured to perform wavelength conversion on a primary light in a first wavelength band, entered from the incident surface, thereby generating a secondary light in a second wavelength band, which differs from the first wavelength band, the wavelength converting body emitting the secondary light from the exit surface; a metallic antenna group provided in a close vicinity of the wavelength converting body and including a plurality of metallic antennas disposed so as to be spaced apart from each other at a distance of substantially an optical wavelength of the secondary light in the wavelength converting body; and a dielectric antenna group including a plurality of dielectric antennas and provided so as to face the exit surface of the wavelength converting body. | 2021-02-04 |
| 20210033757 | Textured Glass Layers in Electronic Devices - An electronic device may have a housing surrounding an interior in which electrical components are mounted. A display may be mounted to housing structures in the device. The housing may have a rear wall. The display cover layer and rear wall of the housing may be formed from transparent glass layers. Coatings may be formed on inwardly facing surfaces of the transparent glass layers. A coating on a transparent glass layer may be formed from a thin-film interference filter having a stack of dielectric layers. The coating may include an ink layer on the thin-film interference filter. The transparent glass layers may have one or more textured surfaces that allow light at high angles to enter the transparent layers and reflect off the coatings at high angles, thereby adjusting optical properties of the coatings. | 2021-02-04 |
| 20210033758 | MULTI-FACETED DIFFUSER PROVIDING SPECIFIC LIGHT DISTRIBUTIONS FROM A LIGHT SOURCE - Optical or light diffusers (or, simply, “diffusers”) designed and manufactured to include numerous facets arranged in cells or sets in which the planar faces or outward-facing surfaces have orientations and transmission angles (as may be defined by direction cosines of normal) to redirect received light to a region or portion of a predefined light distribution. A method of designing or defining the facets of the diffuser is also provides as are methods of manufacturing the diffusers and apparatus or products that include the new diffusers (such as microdisplays and lighting components). The diffusers are optically designed to produce a user-specified distribution of light. The diffusers can be engineered through the configuration of the facets on its front or outer surface (light transmission surface) to produce nearly any type of light distribution or shape, and the diffuser design facilitates their manufacture using extrusion processes as well as other fabrication techniques. | 2021-02-04 |
| 20210033759 | ENCAPSULATED DIFFUSER - An optical device, such as a diffuser, can include a substrate; and a diffuser surface, in which the diffuser surface has an index of refraction greater than about 1.8. A method of making and using the optical device is also disclosed. | 2021-02-04 |
| 20210033760 | SMART MIRROR - A mirror may include a display adjacent one side of a half-mirror to present content and a controller. The controller is coupled to the display to determine, from biometric information acquired from a sensor, a focal distance of a user facing an opposite side of the half-mirror, present content on the mirror in a first manner and a reflection of the user in a second manner in response to the focal distance corresponding to the display, and present the content on the mirror in a third manner, different than the first manner, and the reflection of the user in a fourth manner, different than the third manner, in response to the focal distance corresponding to the reflection of the user. | 2021-02-04 |
| 20210033761 | FILTER STRUCTURE AND METHOD FOR MANUFACTURING SAME, AND DISPLAY DEVICE - A filter structure and a method for manufacturing the same, and a display device. The filter structure includes a base substrate and a plurality of filter units positioned on the base substrate, at least part of the filter units including a quantum dot filter layer. The filter units further include a reflective structure whose orthographic projection on the base substrate surrounds the orthographic projection of the quantum dot filter layer on the base substrate. A distance between a plane of the reflective structure away from the base substrate and the base substrate is greater than a distance between a plane of the quantum dot filter layer close to the base substrate and the base substrate. | 2021-02-04 |
| 20210033762 | SOLAR CONTROL FILM - A composite film may include a first transparent substrate, a dielectric layer and at least two infra-red reflection stacks. The dielectric layer may be located between the at least two infra-red reflection stacks and each of the infra-red reflection stacks may include two titanium blocker layers and a functional layer. The functional layer in each infra-red reflection stack may include silver and may be located between the two blocker layers. | 2021-02-04 |
| 20210033763 | Optical Laminate - The present application relates to an optical laminate. The present application can provide an optical laminate which can have stable durability even at a high temperature, particularly an ultra-high temperature of about 100° C. or higher, and that base material adhesiveness is excellent, other physical properties required for the optical laminate are also excellent, and even in the case of being disposed adjacent to the electrode, corrosion of the relevant electrode or the like is not induced. | 2021-02-04 |
| 20210033764 | OPTICAL ELEMENT AND LIGHT GUIDE ELEMENT - An object is to provide an optical element in which a wavelength dependence of refraction of transmitted light is small, and a light guide element including the optical element. The object can be achieved with an optical element including: a plurality of optically-anisotropic members including an optically-anisotropic layer that is formed using a liquid crystal compound and has a liquid crystal alignment pattern in which an optical axis rotates in an in-plane direction; and a wavelength selective phase difference layer that is disposed between two optically-anisotropic members and converts circularly polarized light in a specific wavelength range into circularly polarized light having an opposite turning direction, the optically-anisotropic layers of one optically-anisotropic member have the same liquid crystal alignment pattern, in a case where a length over which the direction of the optical axis rotates by 180° is set as a single period, the length of the single period in one or more optically-anisotropic members is different from that of another optically-anisotropic member, the liquid crystal compound of the optically-anisotropic layer is twisted and aligned, and the at least one optically-anisotropic member includes two optically-anisotropic layers having opposite twisted directions of twisted alignments of the liquid crystal compounds. | 2021-02-04 |
| 20210033765 | LIGHT IRRADIATION DEVICE AND SENSOR - An object of the present invention is to provide a light irradiation device which is thin and is capable of projecting an optical pattern, and a sensor which uses the light irradiation device. The object is achieved by a light irradiation device including a light emitting element which includes a plurality of light emitting units in a plane; and a liquid crystal optical element, in which the liquid crystal optical element has an optically anisotropic layer formed using a liquid crystal composition containing a liquid crystal compound, the optically anisotropic layer has a liquid crystal alignment pattern in which orientation of an optical axis derived from the liquid crystal compound continuously changes rotationally along at least one in-plane direction and has regions with different lengths of periods in a case where a length over which the orientation of the optical axis derived from the liquid crystal compound rotates by 180° in the plane is denoted by a single period. | 2021-02-04 |
| 20210033766 | ABSORBING, REFLECTING AND COLLIMATING POLARIZER STACK AND BACKLIGHTS INCORPORATING SAME - Polarizer stacks are described. More particularly, polarizer stacks that include an absorbing polarizer and multiple reflective polarizers, including at least one collimating reflective polarizer are described. Such polarizer stacks are capable of emitted light that is both collimated and color neutral. Backlights incorporating such polarizer stacks are also described. | 2021-02-04 |
| 20210033767 | Polarizer with Composite Materials - It would be advantageous to improve polarizer high temperature resistance, corrosion resistance, oxidation resistance, optical properties, and etchability. Composite polarizer materials can be used to achieve this. A polarizer can comprise polarization structures configured for polarization of light. The polarization structures can include a reflective rib, the reflective rib being a composite of two different elements. The polarization structures can include an absorptive rib, the absorptive rib being a composite of two different elements. The polarizer can include a transparent layer, the transparent layer being a composite of two different elements. | 2021-02-04 |
| 20210033768 | POLARIZING PLATE AND OPTICAL DISPLAY APPARATUS COMPRISING THE SAME - A polarizing plate and an optical display apparatus are provided. A polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 180 nm to about 220 nm at a wavelength of 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation Re of about 70 nm to about 120 nm at a wavelength of 550 nm, and a ratio of out-of-plane retardation of the second retardation layer at a wavelength of 550 nm to thickness thereof is about −33 nm/μm to about −15 nm/μm. | 2021-02-04 |
| 20210033769 | DIFFRACTIVE OPTIC FOR HOLOGRAPHIC PROJECTION - Technology is described for methods and systems for a diffractive optic device ( | 2021-02-04 |
| 20210033770 | PATTERNED ANISOTROPIC FILMS AND OPTICAL ELEMENTS THEREWITH - A first layer of anisotropic material extends along a first plane and includes anisotropic components being parallel to a second plane non-parallel and non-perpendicular to the first plane. The anisotropic components are arranged in cycloidal or helical patterns. The cycloidal or helical patterns define one or more Bragg planes that are non-parallel and non-perpendicular to the first plane and either substantially parallel or substantially perpendicular to the second plane. | 2021-02-04 |
| 20210033771 | Autonomous Vehicle Console - The technology involves an in-vehicle communication system with a console that is positioned within the cabin of the vehicle, for instance between the front seats so that passengers in the second row can view and access it. The console is configured to provide contextual information to passengers. The console includes a monitor assembly that has a display screen and a notification region. The notification region includes one or more displayable icons and at least one receptacle for a communication device of a passenger. The notification region has a first section comprising an outer cover layer with a first series of masking, diffuser and illuminating layers to selectively illuminate the one or more displayable icons. The notification region has a second section comprising the outer cover layer with a second series of masking, diffuser and illuminating layers to selectively illuminate the at least one receptacle for the communication device. | 2021-02-04 |
| 20210033772 | LIGHT GUIDE PLATE, PLANAR LIGHT SOURCE APPARATUS, DISPLAY APPARATUS, AND ELECTRONIC DEVICE - An object is to promote a reduction in thickness of a light guide plate and suppress brightness non-uniformity of the light guide plate. A light guide plate, including: a light exit surface from which light is emitted; an opposite surface on an opposite side of the light exit surface; a depressed portion provided on the opposite surface; and a plurality of scattering portions which are provided on the light exit surface, the opposite surface, and a bottom surface of the depressed portion and which refract and scatter light, wherein the depressed portion has a tapered surface which spreads from the bottom surface of the depressed portion toward an opening of the depressed portion. | 2021-02-04 |
| 20210033773 | LIGHT-GUIDE OPTICAL ELEMENT WITH MULTIPLE-AXIS INTERNAL APERTURE EXPANSION - An optical device includes a lightguide having a first pair of external surfaces parallel to each other, and at least two sets of facets. Each of the sets including a plurality of partially reflecting facets parallel to each other, and between the first pair of external surfaces. In each of the sets of facets, the respective facets are at an oblique angle relative to the first pair of external surfaces, and at a non-parallel angle relative to another of the sets of facets. The optical device is particularly suited for optical aperture expansion. | 2021-02-04 |
