34th week of 2022 patent applcation highlights part 42 |
Patent application number | Title | Published |
20220268895 | SYSTEMS AND METHODS FOR TRACKING A POSITION OF A ROTATING PLATFORM OF A LIDAR SYSTEM - Systems and methods are provided herein for improved short range object detection in LiDAR systems. The associated systems may include a first portion and a second portion configured to rotate relative to one another. The system may also include a first magnet located on the second portion and arranged with a north pole of the first magnet facing a first direction. The system may also include a second magnet located on the second portion and arranged with a south pole of the second magnet facing the first direction. The system may also include a first sensor located on the first portion, wherein the first sensor is further configured to measure a first magnetic field of the first magnet and a second magnetic field of the second magnet as the first portion and second portion rotate relative to one another; | 2022-08-25 |
20220268896 | OPTICAL DISTANCE MEASUREMENT APPARATUS - An optical distance measurement apparatus includes a casing, a light emitting unit, a mirror, a rotating unit, a light receiving unit, a window portion, and a reference angle marker. The light emitting unit emits laser light. The mirror is arranged inside the casing and reflects the laser light that is emitted from the light emitting unit. The rotating unit rotates the mirror. The light receiving unit includes a light receiving element for receiving incident light. The window portion is provided in the casing and is for emitting the laser light that is reflected by the mirror outside the casing. The reference angle marker is provided in at least either of the casing and the window portion, and is detected by the light receiving unit based on a rotation angle of the mirror being a reference rotation angle that is prescribed in advance. | 2022-08-25 |
20220268897 | DISTANCE MEASURING DEVICE - A distance measuring device includes a deflecting mirror configured to reflect transmission waves, and a swing motor configured to swing the deflecting mirror round a swing shaft so that scanning with the transmission waves is performed within a predetermined scanning region. The swing motor is configured to swing the deflecting mirror within a range of a predetermined rotation angle from a reference position, which is a rotational position of the deflecting mirror that reflects the transmission waves in a direction to a substantial center of the scanning region. The deflecting mirror is configured to return to the reference position when a distance measuring process, in which scanning with the transmission waves is repeated, ends. | 2022-08-25 |
20220268898 | OPTICAL SENSING SYSTEM - An optical sensing system for sensing a target object is provided. The optical sensing system includes a light source, an optical wave plate, a polarizing beam-splitting element, a reflecting element, and a sensing element. The light source provides a first linearly polarized light beam. The optical wave plate is adapted to convert the first linearly polarized light beam into a circularly polarized light beam and convert the circularly polarized light beam into a second linearly polarized light beam. The polarizing beam-splitting element is adapted to allow the first linearly polarized light beam to pass and reflect the second linearly polarized light beam. The reflecting element is adapted to reflect the circularly polarized light beam to the target object and to reflect the circularly polarized light beam from the target object. The sensing element is disposed on a transmission path of the second linearly polarized light beam. | 2022-08-25 |
20220268899 | RANGING APPARATUS, LIDAR, AND MOBILE ROBOT - Embodiments of the present disclosure provide a ranging apparatus, a lidar, and a mobile robot. The ranging apparatus includes: a laser emitting unit configured to emit pulse laser to a target object to be ranged; a first receiving unit configured to receive the pulse laser reflected from the target object and generate a corresponding first signal, wherein the first signal is for calculating and determining distance according to the triangle ranging principle; and a second receiving unit configured to receive the pulse laser reflected from the target object and generate a corresponding second signal, wherein the second signal is for calculating and determining distance according to the time-of-flight principle. | 2022-08-25 |
20220268900 | RANGING SYSTEM - Ranging systems with increased accuracy without increased mounting area are disclosed. In one example, a ranging system includes a drive unit, a sensor, a measurement unit and a ranging observation unit. The drive unit outputs a drive signal to cause a light emitting element to emit light to irradiate an object according to a trigger signal. The detects reflection light from the object. The measurement unit measures a delay time between the trigger signal and a timing at which the light emitting element actually emits light. The ranging observation unit calculates the distance to the object based on the timing of the trigger signal, a light receiving timing of the reflection light, and the delay time. The measurement unit charges a capacitor during a period between the trigger signal and the drive signal, and acquires the delay time according to a charging voltage of the capacitor. | 2022-08-25 |
20220268901 | DISTANCE MEASURING DEVICE - A distance measuring device includes a light emitting unit, a light receiving array unit, a signal intensity calculation unit, a signal time calculation unit, an intensity correction unit, and a distance calculation unit. The light emitting unit emits pulsed signal light. The light receiving array unit includes a plurality of photodetectors, each of which outputs a pulse signal in response to incidence of a photon. The signal intensity calculation unit calculates a signal intensity that indicates a light intensity of the signal light received by the light receiving array unit. The signal time calculation unit calculates a rise time and a fall time of the signal light detected by the light receiving array unit. The intensity correction unit corrects at least one of the rise time and the fall time calculated by the signal time calculation unit based on the signal intensity calculated by the signal intensity calculation unit. | 2022-08-25 |
20220268902 | LIDAR SYSTEM AND METHOD FOR DETERMINING DISTANCES OF TARGETS - An example device to determine a distance of a target includes: an emitter to emit light pulses according to a device-identifying spatial pattern; a detector to detect light forming an incoming spatial pattern; and a processor interconnected with the emitter and the detector, the processor configured to: determine whether the incoming spatial pattern is valid based on the device-identifying spatial pattern; and when the incoming spatial pattern is valid, determine the distance of the target based on the incoming spatial pattern. | 2022-08-25 |
20220268903 | APPARATUS FOR ESTIMATING LEVEL OF SIGNAL OUTPUT FROM PHOTO-DETECTION DEVICE AND METHOD THEREFOR - An apparatus for estimating a level of a signal output from a photo-detection device and a method therefor are provided. The apparatus includes a photo-detection device that outputs an electrical signal corresponding to an optical signal, a comparison device that outputs a high signal, when the electrical signal is greater than a threshold voltage, and outputs a low signal, when the electrical signal is not greater than the threshold voltage, and a controller that sets the threshold voltage, estimates a level of the electrical signal based on an output signal of the comparison device, and varies the threshold voltage based on the output signal of the comparison device, thus estimating the level of the electrical signal to have higher accuracy without having an ADC. | 2022-08-25 |
20220268904 | STATE DETECTION DEVICE FOR LIDAR, LIDAR, AND STATE DETECTION METHOD - A state detection device for a LIDAR is provided. The state detection device includes: a fault diagnostic unit, configured to perform a fault diagnosis on a component of the LIDAR, and when a fault is diagnosed, output a fault diagnosis signal; and a diagnostic management unit, communicating with the fault diagnostic unit to receive the fault diagnosis signal, and configured to determine a state of the LIDAR according to the fault diagnosis signal. The present disclosure also provides a LIDAR and a state detection method for a LIDAR. | 2022-08-25 |
20220268905 | System and Method for Increasing Coherence Length in Lidar Systems - Various implementations of the invention compensate for “phase wandering” in tunable laser sources. Phase wandering may negatively impact a performance of a lidar system that employ such laser sources, typically by reducing a coherence length/range of the lidar system, an effective bandwidth of the lidar system, a sensitivity of the lidar system, etc. Some implementations of the invention compensate for phase wandering near the laser source and before the output of the laser is directed toward a target. Some implementations of the invention compensate for phase wandering in the target signal (i.e., the output of the laser that is incident on and reflected back from the target). Some implementations of the invention compensate for phase wandering at the laser source and in the target signal. | 2022-08-25 |
20220268906 | ULTRASONIC SENSOR ARRAY CONTROL TO FACILITATE SCREEN PROTECTORS - Techniques for operating an ultrasonic sensor array, the ultrasonic sensor array disposed under a platen, include making a determination whether or not to recalibrate the ultrasonic sensor array based on whether a first screen protector disposed above the platen has been removed or replaced by a second screen protector; and recalibrating the ultrasonic sensor array, when the determination is to recalibrate the ultrasonic sensor array. In some cases, the techniques include prompting a user to indicate whether or not the screen protector has been changed or removed, and recalibrating the ultrasonic sensor array only after confirmation from the user. | 2022-08-25 |
20220268907 | Percutaneous Catheter System and Method for Rapid Diagnosis of Lung Disease - A percutaneously delivered medical device and its method of use includes a catheter, at least two electromagnetic sensing coils located within the distal tip of the catheter, and at least one within the proximal handle, and a multi-element planar ultrasound transducer array located within the distal tip of the catheter and configured to transmit and receive ultrasonic energy in at least two imaging modes. The device also includes an imaging system coupled to the ultrasound transducer and is used for creating an image of tissue in a first target plane that extends orthogonally from the catheter body. The medical device also includes a backscatter evaluation system for use in receiving and evaluating the acoustic spectral characteristics of tissues within a second target area within the first target plane. | 2022-08-25 |
20220268908 | Systems and Methods for Detecting Physical Objects Using Passive Radar Receivers - A method of determining the location of a physical object using a passive radar receiver includes determining if a transmitter beam sweeping period (TBSP) is known, and executing a TBSP-based receiver beam sweeping if the TBSP is known. If the TBSP is not known, determining if the TBSP can be measured, and executing the TBSP-based beam sweeping if the TBSP can be measured. The method includes executing a random receiver beam sweeping if the TBSP is not known and cannot be measured. The method includes determining a relative time of arrival of radio signals between the LoS path and the target path, and determining the propagation times on the LoS path and on the target path. The method includes determining the location of the physical object using the propagation times. | 2022-08-25 |
20220268909 | Methods and Apparatus for Characterising the Environment of a User Platform - Apparatus and methods are presented for characterising the environment of a user platform. In certain embodiments RF signals are transmitted and received through an antenna array having a plurality of elements activated in a predetermined sequence, and received signals are manipulated with round-trip path corrections to enhance the gain of the array in one or more directions. Objects in those directions are detected from the receipt of returns of transmitted signals, and the manipulated received signals processed to estimate range to those objects. In other embodiments RF signals transmitted by one or more external transmitters are received and manipulated to enhance the gain of a local antenna array or antenna arrays associated with the one or more transmitters to enhance the gain of the arrays in one or more directions. Objects in those directions are detected from the receipt of reflected signals from the transmitters, and the manipulated received signals processed to estimate range to those objects. | 2022-08-25 |
20220268910 | ULTRA-WIDEBAND INTEGRATED CIRCUIT (UWB IC) AND METHOD OF CALIBRATING A UWB PRODUCT THAT EMPLOYS THE UWB IC - Disclosed is an ultra-wideband integrated circuit having a transmitter, a receiver, and a non-volatile memory configured to store a time-of-flight between the transmitter and receiver. Also included is an interface configured to communicate with a processor configured to calculate the time-of-flight. Further included is a digital transceiver configured, in response to a loopback mode, to cause the transmitter to transmit a plurality of ultra-wideband frames directly to the receiver, measure a time-of-flight for each of the plurality of ultra-wideband frames received by the receiver and generate a data set for calculating the time-of-flight associated with each measured time-of-flight, send the data set to the processor, receive from the processor the time-of-flight calculated from the data set, and store the time-of-flight in the non-volatile memory. | 2022-08-25 |
20220268911 | RADAR-BASED DETECTION USING ANGLE OF ARRIVAL ESTIMATION BASED ON SPARSE ARRAY PROCESSING - In one example, a radar circuit uses computer processing circuitry for processing data corresponding to reflection signals via a sparse array. Output data indicative of signal magnitude associated with the reflection signals is generated, and then angle-of-arrival information is discerned therefrom by (e.g., iteratively): correlating the output data with at least one spatial frequency support vector indicative of a correlation peak for the output data; generating upper-side and lower-side support vectors which are neighbors along the spatial frequency spectrum for said at least one spatial frequency support vector, and providing, via a correlation of the upper-side and lower-side support vectors and said at least one spatial frequency support vector, at least one new vector that is more refined along the spatial frequency spectrum for said at least one spatial frequency support vector. | 2022-08-25 |
20220268912 | METHOD AND APPARATUS FOR LOCATING TARGET OBJECT - A method for assisting in locating a target object, a method for locating a target object, and an apparatus. In an embodiment, the method for assisting in locating a target object is applied to a station (STA), and the method includes: receiving a wireless sensing sounding frame including radar measurement indication information from an access point (AP); sending an uplink data packet to the AP, recording a first sending moment, and performing radar measurement on a target object based on the radar measurement indication information to obtain a radar measurement result; receiving a downlink data packet from the AP, and recording a first receiving moment; and sending the first sending moment, the first receiving moment and the radar measurement result to the AP. | 2022-08-25 |
20220268913 | GAS SPRING SENSORS USING MILLIMETER WAVELENGTH RADAR AND GAS SPRING ASSEMBLIES AND SUSPENSION SYSTEMS INCLUDING SAME - Gas spring sensors including a millimeter wave radar source and a target surface disposed in spaced relation to the radar source. The sensors also include a millimeter wave radar receptor operable to generate a signal upon receiving the radar waves reflected off the target surface. The radar source is operable to direct millimeter-length radar waves of a frequency greater than or equal to 120 gigahertz (GHz) and a wavelength of 2.5 millimeters or less toward the target surface. A processor is communicatively coupled with the radar source and the radar receptor, and is operable to determine a displacement and a relative velocity using pulsed Doppler or continuous wave frequency modulation radar methods that rely on time of flight and frequency phase shifts of pulsed or continuous radar waves. Gas spring assemblies including such sensors, and suspension systems including one or more of such gas spring assemblies are also included. | 2022-08-25 |
20220268914 | AUTOMATIC IMAGE REJECTION CALIBRATION FOR RADAR SYSTEMS USING QUADRATURE TRANSCEIVERS - A method of automatic image rejection and monitoring of a frequency modulated continuous-wave (FMCW) radar system, includes generating a quadrature FMCW signal comprising an in-phase signal and a quadrature signal by a dual output FMCW signal generator. The in-phase signal and the quadrature signal are transmitted. A radar signal comprising a response in-phase and a quadrature signal is received in response to the transmitted in-phase signal and the quadrature signal. The response in-phase signal and quadrature signals are provided to an analog to digital converter (ADC). An in-phase beat signal (Beat-I) and a quadrature beat signal (Beat-Q) are extracted from the ADC, based on a received windowing signal. A relative phase and/or amplitude adjustment is generated by providing a phase calibration variable (θ | 2022-08-25 |
20220268915 | RADAR SYSTEM, IMAGING METHOD, AND IMAGING PROGRAM - The radar system | 2022-08-25 |
20220268916 | TECHNOLOGIES FOR TRACKING OBJECTS WITHIN DEFINED AREAS - This disclosure enables various technologies for tracking various objects (e.g., mammals, animals, humans, pets) within various defined areas (e.g., rooms, apartments, residences, vehicles, tents) to determine whether those objects satisfy or do not satisfy various criteria, signatures, or thresholds, which may relate to health, safety, or security of those objects within those defined areas. These technologies may be enabled via various radars (e.g., time-of-flight radars, Doppler radars) positioned within those defined areas to track those objects therein. For example, some of such radars may operate in a Ku-band inclusively between about 12 GHz and about 18 GHz, a K-band inclusively between about 18 GHz and about 27 GHz, or a Ka-band inclusively between about 26.5 GHz and about 40 GHz, each of which has been unexpectedly found to be technologically beneficial for tracking those objects within those defined areas. | 2022-08-25 |
20220268917 | METHOD AND APPARATUS FOR DETERMINING A POSITION OF AN AIRBORNE VEHICLE USING SECONDARY SURVEILLANCE RADARS AS BEACONS - Methods and systems are disclosed for determining a spatial position of an aircraft, without replying on measurements from the Global Positioning System. Various embodiments are described using a single Secondary Surveillance Radar (SSR), and multiple SSRs. | 2022-08-25 |
20220268918 | TECHNIQUES FOR GENERATING MOTION INFORMATION FOR VIDEOS - This disclosure describes, in part, techniques for generating location information associated with a video. For instance, an electronic device may use a radar sensor to generate radar data. The electronic device may then analyze the radar data in order to determine a location associated with an object. In some instances, the location may correspond to at least a first coordinate along a first axis and a second coordinate along a second axis. The electronic device may also generate image data using the imaging device. Additionally, the electronic device may analyze the image data in order to determine that the image data represents an object and/or a type of object. The electronic device may then generate location data representing an identifier for the object and the location. Next, the electronic device may send the image data and the location data to one or more computing devices. | 2022-08-25 |
20220268919 | TECHNIQUES FOR PROVIDING MOTION INFORMATION WITH VIDEOS - This disclosure describes, in part, techniques for generating location information of an object along with a video that depicts the object. For instance, an electronic device may include a radar sensor that determines locations of the object. The electronic device may then store radar data representing at least the locations. Additionally, based on detecting an event, the electronic device may begin to generate image data representing the video. The electronic device may then analyze the radar data and the image data in order to determine that the object detected by the radar sensor includes the same object represented by the image data. As such, the electronic device may send the radar data and the image data to one or more computing devices. This way, a user device is able to display both the video depicting the object as well as the location information representing the motion of the object. | 2022-08-25 |
20220268920 | METHOD AND APPARATUS FOR PROCESSING SOURCE DATA OF SYNTHETIC APERTURE RADAR IN SATELLITE - Disclosed are a method and apparatus for processing source data of a synthetic aperture radar in a satellite, including receiving source data generated based on a signal returned after an electronic device steers a beam from a synthetic aperture radar and backscatters, setting a plurality of subswaths after the electronic device parses the source data, storing based on the plurality of subswaths after the electronic device decodes the source data; and generating image data after the electronic device calls the decoded source data in the order of the plurality of sub swaths. | 2022-08-25 |
20220268921 | Electrically Scanned Surface Imaging Radar - A frequency-modulated continuous wave (FMCW) millimeter-wave (MMW) radar system. Preferred embodiments operate within a frequency range between about 77 and 81 GHz (wavelengths between about 3.846 mm and 3.304 mm). The MMW frequency in these embodiments is increased or decreased (“chirped ”) in a very linear fashion over some or all of this operating frequency range. Over the chirp period, the time derivative of the transmit frequency, df/dt, is held constant. In the time τ it takes for the radar's transmit signal, moving at the speed of light c, to travel from the antenna to a target at a range R and return back to the antenna (τ=2R/c), the transmitter's output frequency will have moved by an amount (df/dt)*τ. Thus, the more distant the reflecting target, the greater the two-way signal time of flight and consequently the greater the frequency change. By mixing the delayed returning signal with the current transmitter output signal, this difference frequency is measured directly, determining uniquely the distance from the radar to the reflecting target. | 2022-08-25 |
20220268922 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - The image processing device | 2022-08-25 |
20220268923 | VEHICLE LAMP AND VEHICLE - A vehicle lamp includes: a lamp housing; a lamp cover; an illumination unit disposed in a lamp chamber; a radar configured to acquire radar data indicating surroundings of a vehicle by emitting an electromagnetic wave outside the vehicle; a concealing part that faces the radar to conceal the radar from the outside of the vehicle and is configured to let the electromagnetic wave emitted from the radar through; a support member that is fixed to a vehicle body and is configured to support and fix the radar; and a positioning part that is disposed between the concealing part and the support member and is configured to position the radar to the concealing part. The concealing part is formed integrally with the lamp cover. The positioning part is fixed to the concealing part and is configured to engage with the support member elastically. | 2022-08-25 |
20220268924 | RADAR DEVICE FOR VEHICLE AND CONTROLLING METHOD THEREOF - The embodiments of the present disclosure relate to a radar device including an antenna unit including a transmission antenna for transmitting a transmission signal and a receiving antenna for receiving a reception signal reflected from a target, a signal processor configured to determine target direction information by using a phase difference between the reception signals received from the respective receiving antennas, and a controller configured to control to perform a first mode and a second mode for transmitting and receiving signals at different pulse repetition intervals, respectively. | 2022-08-25 |
20220268925 | PRESENCE DETECTION USING ULTRASONICS AND AUDIBLE SOUND - A system includes a speaker, a microphone, a display, and one or more hardware processors coupled to the speaker, the microphone, and the display. At least one of the one or more hardware processors is operable to perform operations that include: transmitting an ultrasonic audio signal from the speaker; capturing, by the microphone, sounds in the room, wherein the sounds include an ultrasound portion and an audible portion; estimating a room impulse response based on the ultrasound portion; determining that the estimated room impulse response is different from a default room impulse response; determining, based on the audible portion, that there is non-stationary audible sound in the room; and in response to determining that the estimated room impulse response is different from the default room impulse response and that there is non-stationary audible sound in the room, switching on the display of the computing system. | 2022-08-25 |
20220268926 | SONAR BEAM FOOTPRINT PRESENTATION - Systems and methods for providing a sonar beam footprint are detailed herein. A system for presenting marine data includes at least one sonar transducer associated with a watercraft, a display, processor(s), and memory including computer program code. The sonar transducer emits sonar beams into an underwater environment that define a beam shape. The program code, when executed, causes, on the display, presentation of a chart and a representation of the watercraft; determines a depth corresponding to a bottom surface of a body of water at a current location of the watercraft; and determines, based on the depth and the beam shape, a sonar beam footprint corresponding to a projection of the beam shape at the depth. The program code further causes, on the display, presentation of the sonar beam footprint on the chart so as to visually indicate sonar beam coverage. | 2022-08-25 |
20220268927 | SONAR BEAM ZONE PRESENTATION - Systems and methods for determining a location of an object within a sonar beam zone are detailed herein. A system for presenting marine data includes at least one sonar transducer associated with a watercraft, a display, processor(s), and a memory including a computer program code. The sonar transducer emits sonar beams into an underwater environment defining a beam shape. The program code, when executed, causes, on the display, presentation of a chart and a representation of the watercraft; and determines, based on the beam shape corresponding to the sonar transducer, a sonar beam zone corresponding to a sonar coverage of the underwater environment of the body of water. The program code further receives sonar return data and determines a position of an object within the sonar beam zone, and causes, on the display, presentation of the sonar beam zone and an indication of the object within the sonar beam zone. | 2022-08-25 |
20220268928 | APPARATUS FOR SELECTING LIDAR TARGET SIGNAL, LIDAR SYSTEM HAVING THE SAME, AND METHOD THEREOF - A Light Detection and Ranging (LiDAR) target signal selection apparatus may include a processor configured to estimate a target signal among signals of a current frame N by use of a determined target signal of a previous frame N−1 among N LiDAR receiving signals, and to determine the estimated target signal based on deviations of previous frames 1 to N−1; and a storage configured to store data and algorithms driven by the processor. | 2022-08-25 |
20220268929 | Distance Measurement System and Distance Measurement Method - According to the present invention, a measured distance is corrected in accordance with change in the surrounding environment. A distance measurement system includes: a first light-receiving unit configured to irradiate an object with one part of a split light beam as assessment light, and receive light reflected by the object to detect a target assessment beat signal; a second light-receiving unit configured to guide the other part of the split light beam as reference light to a reference optical path serving as a distance reference, and receive the reference light that has passed through the reference optical path to detect a reference optical path assessment beat signal; a distance measurement unit configured to measure a distance to the object on the basis of the target assessment beat signal and the reference optical path assessment beat signal; a temperature sensor configured to assess a temperature in the periphery of the reference optical path; and a correction unit configured to correct the measured distance on the basis of the assessed temperature. | 2022-08-25 |
20220268930 | RANGING DEVICE AND LIGHT RECEPTION METHOD THEREOF - Ranging devices and light reception methods wherein the modulation frequencies of a light source and a ToF sensor are synchronized are disclosed. In one example, a ranging device includes a reception section that generates, by executing a synchronization process on a transmission signal transmitted from a separate device through wireless communication, a signal synchronized with a synchronization clock signal of the separate device, a reference clock generation section that generates, on the basis of the synchronization clock signal, a reference clock signal to be used as a reference for light emission from the light source, and a ToF sensor that receives, on the basis of the reference clock signal, reflection light resulting from irradiation light applied from the light source and reflected by an object. | 2022-08-25 |
20220268931 | MEASUREMENT APPARATUS AND MEASUREMENT METHOD - A measurement apparatus including a laser apparatus that outputs a frequency-modulated laser beam with a plurality of modes of a main lobe, branch that splits the frequency-modulated laser beam into a reference light, a measurement light, and a monitor light, beat signal generator that generates a beat signal by mixing the reference light and a reflected light that is reflected by radiating the measurement light onto an object to be measured, extraction circuitry that extracts a signal component including a plurality of self-beat signals based on the main lobe from the monitor light, identification circuitry that identifies a cavity frequency of the optical cavity on the basis of the signal component, and calculation circuitry that calculates a difference between propagation distances between the reference light and the measurement light on the basis of the cavity frequency and the beat signal. | 2022-08-25 |
20220268932 | IMPROVEMENTS IN AND RELATING TO TARGETING - A targeting method comprising the steps of determining a bearing to a target from an observer using first and second independent techniques; comparing the bearings as determined by the first and second independent techniques and determining whether the bearings are accurate; and if the bearing is deemed to be accurate; measuring a range from the observer to the target; and calculating the position the target based on the verified bearing and range from the observer's position. The bearing can be measured by using a magnetometer, and cross-checked or verified using calculations based on three-dimensional satellite cartography data. The range to the target can be cross-checked, as can the position and viewpoint of the observer. | 2022-08-25 |
20220268933 | OBJECT DETECTION SYSTEM - A vehicular object detection system includes a camera and a lidar. With the camera mounted at a windshield of a vehicle, and with the lidar mounted at an exterior portion of the vehicle, and based at least in part on processing of image data captured by the camera and lidar data captured by the lidar, a plurality of individual objects present exterior of the vehicle are detected. Based at least in part on processing of captured image data and captured lidar data, (i) respective proximity relative to the vehicle of individual objects is determined, (ii) respective speed relative to the vehicle of individual objects is determined and (iii) respective location relative to the vehicle of individual objects is determined. Based at least in part on processing of captured image data and/or processing of captured lidar data, the system determines collision potential between the vehicle and an individual object. | 2022-08-25 |
20220268934 | GLOBAL ENVIRONMENT MODEL FOR PROCESSING RANGE SENSOR DATA - Disclosed are systems and techniques for processing range sensor data. For instance, an apparatus can be configured to obtain a plurality of measurements from one or more range sensors, and to determine, based on a sparsity constraint, a plurality of coefficients corresponding to a sparse basis expansion of a global environment model. In some aspects, the apparatus can be further configured to perform operations to determine, based on the global environment model, the plurality of coefficients, and the plurality of measurements, at least one of a linear velocity, an angular velocity, or both, corresponding to a range sensor of the one or more range sensors, wherein the global environment model is based on a sparse basis expansion. | 2022-08-25 |
20220268935 | ELECTRONIC DEVICE COMPRISING CAMERA AND METHOD THEREOF - According to an embodiment, an electronic device comprises: a camera module configured to acquire an image, wherein the image comprises a portion depicting at least one target object; a Time of Flight (ToF) sensor configured to generate depth data regarding the at least one target object; at least one processor operatively connected with the camera module and the ToF sensor; and at least one memory operatively connected with the at least one processor, wherein the at least one memory stores instructions that, when being executed, cause the at least one processor to perform a plurality of operations, the plurality of operations comprising: while acquiring the image by using the camera module, measuring a first distance between the at least one target object and the electronic device, based on the depth data from the ToF sensor; pause an operation of the ToF sensor when the measured first distance is longer than a designated distance; while the operation of the ToF sensor is paused, measure a second distance between the at least one target object and the electronic device, using the camera module; and when the measured second distance is within the designated distance, resume the operation of the ToF sensor. | 2022-08-25 |
20220268936 | END OF TRAIN DEVICE AND INTEGRATED LIDAR MONITORING SYSTEM - An end of train device (EOT) suitable of use on a railway vehicle includes a mounting unit for installation on a car of a railway vehicle, an enclosure housing a plurality of electronic components, and an illumination device configured to illuminate a section of a surrounding area of the railway vehicle, to receive reflected light and to measure time for the reflected light to return to the illumination device for monitoring purposes of the surrounding area. Further, a monitoring system and a monitoring method are described. | 2022-08-25 |
20220268937 | APPARATUS AND METHOD FOR IMPROVING POSITION ACCURACY OF LIDAR MOTOR - An apparatus of improving position accuracy of a Light Detection and Ranging (LIDAR) motor may include a motor that rotates at a rotation speed set by a user and a controller that generates a parameter depending on the rotation speed for determining a position of the motor within a preset horizontal angle of view and determines whether the motor is in a normal operation state and the position of the motor, based on the parameter. | 2022-08-25 |
20220268938 | SYSTEMS AND METHODS FOR BOUNDING BOX REFINEMENT - In one embodiment, a method includes receiving sensor data. The sensor data is based on information from a first set of echo points and a second set of echo points. At least one echo point from the first set of echo points and one echo point from the second set of echo points originate from a single beam. The method includes generating a first set of feature maps based on the first set of echo points and a second set of feature maps based on the second set of echo points. The method includes predicting a bounding box for the object based on the first set of feature maps and the second set of feature maps. | 2022-08-25 |
20220268939 | Label transfer between data from multiple sensors - A method includes receiving first sensor data captured by a first sensor. The method further includes receiving a plurality of labels or predictions corresponding to the first sensor data. The method also includes receiving second sensor data captured by a second sensor. The method further includes determining time-synchronized sensor data comprising a subset of the first sensor data and a subset of the second sensor data. The method additionally includes determining, based on the plurality of labels or predictions and the time-synchronized sensor data, a plurality of pseudo-labels corresponding to the second sensor data. The method also includes generating a training data set comprising at least the subset of the second sensor data and one or more pseudo-labels from the plurality of pseudo-labels. | 2022-08-25 |
20220268940 | OPTICAL OBJECT DETECTION AND CLASSIFICATION WITH DYNAMIC BEAM CONTROL - An optical object detection device and method using a light emitter and a detector sensitive to reflected light from an object is described herein. The object detection device includes a liquid crystal beam shaping element to allow beam steering, broadening and diffraction of the light emitter. The detection of the object may be done through analyzing the reflected light from different degrees of broadening of the light emitter's beam. The localization and/or the shape of the object may further be determined by analyzing the reflected light from a grid pattern obtained through diffracting the light emitter's beam. | 2022-08-25 |
20220268941 | OBJECT RECOGNITION SYSTEM AND OBJECT RECOGNITION METHOD - A data processing device performs an abnormality determination process in which i) a relative moving distance indicating a distance by which a tracking target moves relatively to a movable body is predicted, in a range of a data set for expressing point group data until the lapse of a predetermined time from a present timing, ii) the relative moving distance includes a vertical distance and a horizontal distance, iii) an estimated intensity of reflected light is calculated, when the vertical distance or the horizontal distance is equal to or longer than a predetermined distance, and iv) it is determined that there is an abnormality in the predetermined section when it is determined that a difference between the estimated intensity of the reflected light and an actual intensity of the reflected light is higher than a predetermined intensity. | 2022-08-25 |
20220268942 | LIGHT RECEIVING DEVICE AND METHOD FOR DRIVING LIGHT RECEIVING DEVICE - The present technology relates to a light receiving device capable of expanding a measurement range, and a method of driving the light receiving device. The light receiving device includes a pixel having a photoelectric conversion unit that photoelectrically converts incident light to generate charges, a first charge accumulation unit that accumulates first charges generated in the photoelectric conversion unit for a first charge accumulation time, and a second charge accumulation unit that accumulates second charges generated in the photoelectric conversion unit for a second accumulation time different from the first accumulation time. The present technology can be applied to, for example, a ranging module that performs ranging using the indirect ToF method. | 2022-08-25 |
20220268943 | SATELLITE SIGNAL PROPAGATION DELAY TEST DEVICE - A test device determines error in a fronthaul network of a radio access network. A first Global Navigation Satellite System (GNSS) receiver receives GNSS signals from a GNSS satellite through a reference GNSS signal distribution system (GSDS) having a known signal propagation delay. The first GNSS receiver calculates and outputs a corresponding reference One Pulse Per Second (1 PPS) signal. A second GNSS receiver receives the GNSS signals through a device under test including a GSDS having an unknown signal propagation delay. The second GNSS receiver calculates and outputs a corresponding DUT 1 PPS signal. The test device determines the unknown signal propagation delay of the DUT by comparing the reference 1 PPS signal to the DUT 1 PPS signal. | 2022-08-25 |
20220268944 | SYSTEMS AND METHODS FOR GNSS AMBIGUITY RESOLUTION - Systems and methods for GNSS ambiguity resolution are described herein. In some examples, the systems and methods utilize multiple search engines in parallel to validate potential integer candidates for ambiguity resolution using adaptively adjusted residual thresholds. | 2022-08-25 |
20220268945 | METHOD OF DETERMINING AND DISTRIBUTING PERFORMANCE OF GNSS PREDICTION DATA - A method of determining performance of GNSS prediction data includes receiving the GNSS prediction data at a server, the GNSS prediction data being associated with a unique identifier, determining performance metrics of the prediction data at a current time and saving the performance metrics of the prediction data in association with the unique identifier, and in response to receipt of a request from an electronic device, sending one or both of the performance metrics of the prediction data associated with the unique identifier and corrections for correcting the prediction data to the electronic device for use by the electronic device. | 2022-08-25 |
20220268946 | VEHICLE LOCATION AND CONTROL SYSTEM - A vehicle location and control system determines a signal-derived separation distance between antennas disposed onboard a vehicle based on signals received by the antennas from an off-board source. The system determines an input-derived separation distance between the antennas based on input offset distances of the antennas from a designated location on the vehicle, determines a difference between the input-derived separation distance and the signal-derived separation distance, and activates or deactivates an automated route identification system that determines which route of several different routes that the vehicle is disposed upon based on the difference that is determined. | 2022-08-25 |
20220268947 | DETERMINING A LOCATION OF A VEHICLE USING RECEIVED SURVEILLANCE SIGNALS - In some examples, a system includes at least three receivers configured to receive a surveillance packet from another vehicle at respective arrival times. The system includes a first receiver configured to receive a surveillance packet from the other vehicle at a first time. The system also includes a second receiver configured to receive the surveillance packet from the other vehicle at a second time. The system further include a third receiver configured to receive the surveillance packet from the other vehicle at a third time. In addition, the system includes processing circuitry configured to determine a location of the ownship vehicle based on the received surveillance packet and the respective arrival times. | 2022-08-25 |
20220268948 | SIGNAL READOUT CIRCUIT, SIGNAL READOUT DEVICE, AND SIGNAL READOUT METHOD FOR PHOTODETECTION ELEMENT - A signal readout circuit is a circuit for reading out a signal from a photodetection element having a plurality of photodetection pixels each generating a detection signal according to light incidence, and includes N light incidence detection units (N is an integer of 2 or more) each for inputting the detection signal from each of N photodetection pixels and outputting a signal indicating the light incidence, and a total value detection unit for detecting a total value of the output signals from the N light incidence detection units. Each light incidence detection unit outputs the signal weighted differently corresponding to each photodetection pixel. A weight thereof is set such that the total values are different for respective photodetection pixels and all combination patterns of the photodetection pixels. | 2022-08-25 |
20220268949 | Packaging of Semiconductor X-Ray Detectors - Disclosed herein is an apparatus suitable for detecting x-ray, comprising: an X-ray absorption layer configured to generate an electrical signal from an X-ray photon incident on the X-ray absorption layer; an electronics layer comprising an electronics system configured to process or interpret the electrical signal; and an interposer chip embedded in a board of an electrically insulating material; wherein the X-ray absorption layer is bonded to the electronics layer; wherein the electronics layer is bonded to the interposer chip. | 2022-08-25 |
20220268950 | METHODS OF MAKING A RADIATION DETECTOR - Disclosed herein is a method for forming a radiation detector. The method comprises forming a radiation absorption layer and bonding an electronics layer to the radiation absorption layer. The electronics layer comprises an electronic system configured to process electrical signals generated in the radiation absorption layer upon absorbing radiation photons. The method for forming the radiation absorption layer comprises forming a trench into a first surface of a semiconductor substrate; doping a sidewall of the trench; forming a first electrical contact on the first surface; forming a second electrical contact on a second surface of the semiconductor substrate. The second surface is opposite the first surface. The method further comprises dicing the semiconductor substrate along the trench. | 2022-08-25 |
20220268951 | METHODS OF RECOVERING RADIATION DETECTOR - Disclosed herein is a method of recovering performance of a radiation detector, the radiation detector comprising: a radiation absorption layer configured to absorb radiation particles incident thereon and generate an electrical signal based on the radiation particles; an electronic system configured to process the electrical signal, the electronic system comprising a transistor, the transistor comprising a gate insulator with positive charge carriers accumulated therein due to exposure of the gate insulator to radiation; the method comprising: removing the positive charge carriers from the gate insulator by establishing an electric field across the gate insulator. | 2022-08-25 |
20220268952 | RADIATION SOURCE LOCALIZATION SYSTEMS AND METHODS - Radiation source localization systems and related techniques are provided to improve the operation of handheld or unmanned mobile sensor or survey platforms. A radiation source localization system includes a logic device configured to communicate with a communications module and a directional radiation detector, where the communications module is configured to establish a wireless communication link with a base station associated with the directional radiation detector and/or a mobile sensor platform, and the directional radiation detector includes a sensor assembly configured to provide directional radiation sensor data as the directional radiation detector is maneuvered within a survey area. | 2022-08-25 |
20220268953 | SYSTEM AND METHOD FOR DIRECTIONAL DETECTION OF RADIATION - A system for directional detection of radiation, comprises a plurality of scintillating crystals, responsive to the radiation and being arranged three-dimensionally, with voids between adjacent crystals, such that there are crystals that are inner and crystals that are outer within the arrangement. The system also comprises a plurality of light sensors coupled to the crystals for receiving optical signals from the crystals and responsively generating electrical signals, and a data processor receiving an electrical signal separately from each light sensor and calculating a direction of the radiation based on relative intensities of the signals and mutual occultation among different crystals. | 2022-08-25 |
20220268954 | METHODS AND SYSTEMS FOR CALIBRATING AN X-RAY APPARATUS - The present disclosure relates to methods and systems for calibrating an X-ray apparatus. The X-ray apparatus may include an X-ray detector and a collimator. To calibrate the X-ray apparatus, the methods and systems may include moving the X-ray detector from a first position to a second position along a first axis of a coordinate system, wherein the first position is under a scanning table, and the second position is outside the scanning table; moving the collimator to align the collimator with the X-ray detector at the second position; determining one or more parameters; and determining a second value of the first encoder when the collimator is aligned with the X-ray detector at the first position based on the one or more parameters. | 2022-08-25 |
20220268955 | Method for optimizing aviation radiation and dose monitoring system - A method for optimizing an aviation radiation dose comprises a) gathering flight-relevant data including at least one flight schedule; b) gathering radiation data including at least a current radiation field assigned to the at least one flight schedule, historical radiation data assigned to the flight-relevant data and a radiation dose threshold; c) calculating an expected radiation dose based on the flight-relevant data and the radiation data; and d) modifying the flight-relevant data and repeating steps a) to c) at least once in order to obtain optimized flight-relevant data with regard to the expected radiation dose. With each iteration the flight-relevant data is modified. | 2022-08-25 |
20220268956 | SEISMIC SENSOR AND EARTHQUAKE DETERMINATION METHOD - A seismic sensor includes a measurement unit configured to measure acceleration; an earthquake determination unit configured to determine whether or not an earthquake has occurred based on the acceleration measured in a predetermined determination period; an index calculator configured to calculate an index value indicating a scale of an earthquake in an earthquake processing period after the predetermined determination period, when the earthquake determination unit determines that an earthquake has occurred; a continuous earthquake determination unit configured to determine whether or not an earthquake has occurred, based on the acceleration measured in the earthquake processing period; and a shut-off determination unit configured to inhibit output of the shut-off signal regardless of the index value when the continuous earthquake determination unit determines that no earthquake has occurred. | 2022-08-25 |
20220268957 | ENHANCEMENT OF SEISMIC DATA - Methods, systems, and computer-readable medium to perform operations including: generating a first time-frequency spectrum of a first seismic trace from an original seismic dataset; generating a second time-frequency spectrum of a second seismic trace from an enhanced seismic dataset, where the second seismic trace; calculating a difference between the first time-frequency spectrum and the second time-frequency spectrum to generate a noise estimate in the first seismic trace; constructing, based on (i) the noise estimate, (ii) the first time-frequency spectrum, and (iii) the second time-frequency spectrum, a time-frequency mask (TFM); and using the constructed TFM to generate a third time-frequency spectrum of an output trace that corresponds to the first and second seismic traces. | 2022-08-25 |
20220268958 | AUTOMATIC IMAGE REGISTRATION OF MULTICOMPONENT SEISMIC DATA - A method is described that includes obtaining a multicomponent seismic data set for a subterranean region of interest and determining, using a computer processor, a PP stacked time-domain seismic image and a PS stacked time-domain seismic image from the multicomponent seismic data set. The method further includes transforming a recording-time axis of at least one of the PP stacked time-domain seismic image and the PS stacked time-domain seismic image to produce a pair of coarsely-registered PP and PS seismic images and filtering at least one of the pair to produce a pair of spectrally-matched PP and PS seismic images. Further, the method includes dynamically warping at least one of the pair of spectrally-matched PP and PS seismic images to produce a pair of fully-registered PP and PS seismic images. | 2022-08-25 |
20220268959 | METHOD AND APPARATUS FOR GEOPHYSICAL FORMATION EVALUATION MEASUREMENTS BEHIND CASING - Apparatus, methods, and systems for determining acoustic velocity behind casing or tubing in a subterranean wellbore. A method may include obtaining a plurality of waveform data sets corresponding to a plurality of propagation path regimes and obtaining a total wavefield across the receiver array. The method may also include determining a Green's function representing each of the plurality of propagation path regimes and determining a noise wavefield by convolving the Green's functions and a known transmitted pressure signal corresponding to the plurality of waveform data sets. The method may also include generating a reduced-noise wavefield by subtracting the noise wavefield from the total wavefield and estimating the acoustic velocity of a formation behind the casing or tubing from the reduce-noise wavefield. | 2022-08-25 |
20220268960 | METAL DETECTION APPARATUS - A metal detection apparatus that can accurately and automatically determine whether a metal passing through the inspection area is a magnetic or non-magnetic metal comprises a detection unit quadrature-detecting a differential detection signal of magnetic field fluctuation in the inspection area due to the passage of a workpiece, and a determination unit that determines the presence or absence of a mixed metal based on both fluctuation components after the detection. The determination unit compares sample signal phase data obtained beforehand from the detection signal of the magnetic field fluctuation in the inspection area due to the passage of various metal samples, with the signal phase data obtained from the detection signal of the magnetic field fluctuation in the inspection area due to the passage of the workpiece mixed with metal, and determines the type of metal passing through the inspection area based on the phase determination result. | 2022-08-25 |
20220268961 | METAL DETECTOR - A metal detector detects when a target that is a desirable metal object is located within a medium. A signal is transmitted into the medium. A response signal is received from the medium. The response signal includes a secondary medium response signal from the medium and includes a secondary target response signal from the target when the target is located within the medium. The response signal is amplified to produce an amplified signal. Compensation circuitry perform transmit coil transfer function compensation on the amplified signal to produce a compensated signal. A notch module removes a resistive component of the secondary medium response signal from the compensated signal. | 2022-08-25 |
20220268962 | A FLOOR DETERMINATION METHOD FOR TERMINAL DEVICES - The invention provides a floor determination method for terminal devices, including the steps: S | 2022-08-25 |
20220268963 | SYSTEM AND METHOD FOR ENVIRONMENT-DEPENDENT PROBABILISTIC TROPICAL CYCLONE MODELING - According to various embodiments, a machine-learning based system for simulating tropical cyclones (TCs) and assessing TC risk is disclosed. The system includes a hierarchical Poisson genesis module configured to develop a Poisson regression and TC genesis simulation on a plurality of clustering grids. The system further includes an analog-wind track module configured to determine movement of a TC by both analog predictors formed by historical track patterns and current in situ wind. The system additionally includes a Markov intensity module configured to determine intensity change of the TC by considering three hidden discrete states of storm intensity change and associating each state with a probability distribution of intensity change. | 2022-08-25 |
20220268964 | Method Of Predicting Amount Of Precipitation Based On Deep Learning - According to an exemplary embodiment of the present disclosure, a method of predicting the amount of precipitation based on deep learning performed by a computing device is disclosed. The method may include: receiving meteorological data measured in a weather observation system; and predicting the amount of precipitation of a region of interest based on the meteorological data by using a deep learning model. In this case, the deep learning model may be pre-trained based on a combination of a first loss function for an error calculation between a prediction value and Ground Truth (GT), and a second loss function for an error calculation different from the first loss function. | 2022-08-25 |
20220268965 | OPTICAL DEVICE - An optical device includes a layer having a face configured to be traversed by light at an operating wavelength. The face of the layer includes a fractal structure lacking rotational symmetry such as a fractal structure that corresponds to a fractal expressed in an L-system. The fractal structure is formed by recesses that penetrate into the layer from the face. The recesses have a depth which is less that a thickness of the layer. | 2022-08-25 |
20220268966 | BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS - This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. | 2022-08-25 |
20220268967 | Electronic Devices Having Glass Layers With Scratch Resistant Coatings - An electronic device may be surrounded by an exterior region and may have an interior region. Electronic components may be mounted in the interior region. Housing walls such as housing walls formed from transparent layers of material may separate the interior region from the exterior region. A display may be visible through one of the transparent layers of material. A transparent layer of material may be coupled to housing structures in the device and may be formed of glass or glass-ceramic. The transparent layer may have two opposing chemically strengthened surface layers of different thicknesses. A coating may be formed on a thinner of the two opposing chemically strengthened surface layers. The coating may have an oleophobic outer coating layer, an antireflection layer, and an antiscratch layer. The antiscratch layer may have one or more compressively stressed dielectric layers and may have one or more corresponding graded composition layers. | 2022-08-25 |
20220268968 | MOLDED PHOTOSENSITIVE ASSEMBLY FOR ARRAY IMAGING MODULE FOR ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF - A molded photosensitive assembly includes a supporting member, at least a circuit board, at least two photosensitive units, at least two lead wires, and a mold sealer. The photosensitive units are coupled at the chip coupling area of the circuit board. The lead wires are electrically connected the photosensitive units at the chip coupling area of the circuit board. The mold sealer includes a main mold body and has two optical windows. When the main mold body is formed, the lead wires, the circuit board and the photosensitive units are sealed and molded by the main mold body of the mold sealer, such that after the main mold body is formed, the main mold body and at least a portion of the circuit board are integrally formed together at a position that the photosensitive units are aligned with the optical windows respectively. | 2022-08-25 |
20220268969 | LIGHT DIFFUSING LENS WITH SQUARE IRRADIATION DISTRIBUTION - Disclosed is a light diffusing lens installed to cover an LED package mounted on a substrate, including a bottom surface which is an ellipse having a semi major axis and a semi minor axis, and a top surface which has a dome-shaped structure, wherein a Z segment function f(a) of the top surface line segment in a diagonal radius direction between the semi major axis and the semi minor axis is specified. | 2022-08-25 |
20220268970 | MULTI-FOCAL OPTICS FOR WEARABLE HEADS-UP DISPLAYS - Systems, devices, and assemblies for implementing multi-focal lens portions in wearable heads-up displays are described. Multi-focal lens portions may include at least two regions having different optical power, and at least one transition region between regions having different optical power. If display light is directed through a transition region, aberrations or distortion may be visible in the display presented to the user. The present systems, devices, and assemblies address this issue through shaping, positioning, and orienting of regions of a multi-focal lens portion, through positioning, orientation, and aiming of display optics, and/or through arrangements of lens assemblies which prevent display light from travelling through a multi-focal lens portion. | 2022-08-25 |
20220268971 | OPTICAL IMAGING SYSTEM - An optical imaging system includes a plurality of fixed lenses disposed along an optical axis; a first reflective member disposed on an object side of the plurality of lenses; and a plurality of reflective members disposed on an image side of the plurality of lenses. At least one of the plurality of lenses is a variable lens having a variable focal length, and each of the plurality of reflective members is configured to move as the focal length of the variable lens changes. | 2022-08-25 |
20220268972 | LENS CURVATURE VARIATION APPARATUS - A lens curvature variation apparatus according to an embodiment includes: a liquid lens including a first electrode and a second electrode, and containing a first liquid and a second liquid forming an interface with each other; a voltage booster including a first switching element, and converting an input voltage into a voltage of a first level higher than the input voltage by a switching operation of the first switching element; a lens driver applying a driving voltage for adjusting the interface to the first electrode and the second electrode by using the voltage of the first level; a sensor unit sensing the interface controlled by the driving voltage; and a control unit controlling the lens driver so that the liquid lens forms a target interface based on information of the interface sensed by the sensor unit, wherein the voltage booster is deactivated during a sensing time at which the interface of the liquid lens is sensed by the sensor unit. | 2022-08-25 |
20220268973 | LAMELLAR PARTICLES WITH FUNCTIONAL COATING - There is disclosed a functional lamellar particle including an unconverted portion of the lamellar particle, wherein the unconverted portion includes a first metal, a converted portion of the lamellar particle disposed external to a surface of the unconverted portion, wherein the converted portion includes a chemical compound of the first metal; and a functional coating disposed external to a surface of the converted portion. | 2022-08-25 |
20220268974 | SYSTEM AND METHOD FOR ADJUSTING LIGHT INTENSITY IN A DISPLAY SYSTEM - A display system including a backlight including a housing receiving light emitting elements to generate and project light from the backlight and reflective portions disposed on the housing is described. A first display unit is disposed proximate the backlight and may include an upper substrate, a liquid crystal layer, and a lower substrate disposed opposite the upper substrate. A reflective polarizer may cooperate with one or more of the upper substrate and the lower substrate of the first display unit. A second display unit is disposed proximate the first display unit. The second display unit may include an upper substrate, a thin-film transistor (TFT) display layer cooperating with the upper substrate and a lower substrate disposed opposite the upper substrate that cooperates with the TFT display layer. A linear polarizer may cooperate with one or more of the upper substrate and the lower substrate of the second display unit. | 2022-08-25 |
20220268975 | PROJECTION SCREEN - A projection screen with a design in which the apexes of multiple triangular pyramidal units of the projection screen in an array arrangement change gradually according to a predetermined relation, an image light shone from a projector is reflected by a microstructure layer having the triangular pyramidal units and then converged in a range centered around the human eyes, so as to reduce the degree of difference in brightness at different viewing positions, thus ensuring that the projection screen is provided with excellent uniformity and high gain. | 2022-08-25 |
20220268976 | Light-Folded Projector - A device may include a light-folded projector that may include an infrared (IR) light emitter and a light folding element. The light folding element may receive IR light emitted from the IR light emitter and fold the IR light one or more times to guide the IR light passing through the light folding element to exit the device to an environment. The device may also include a detector that may detect and/or recognize an object in the environment using the IR light from the light-folded projector, and a front-facing camera to capture images of the environment in front of the device. | 2022-08-25 |
20220268977 | OPTICAL APPARATUS AND METHODS AND COMPUTER PROGRAM PRODUCTS USEFUL FOR MANUFACTURING SAME - Optical apparatus comprising a MEMS substrate having a surface; and a stack of optical coatings which is deposited on the MEMS substrate's surface and which modifies at least one property of light impinging on the stack. | 2022-08-25 |
20220268978 | SPECIAL-SHAPED PLANE MIRROR - A special-shaped plane reflecting mirror including a first reflecting mirror, a second reflecting mirror, a third reflecting mirror, a fourth reflecting mirror and a fifth reflecting mirror; wherein the second reflecting mirror and the fourth reflecting mirror are constructed the same and symmetrically arranged on both sides of the first reflecting mirror, the third and fifth reflecting mirrors have the same structure and are arranged symmetrically on both sides of the first reflecting mirror, the first reflecting mirror is placed at an angle of 45° with the horizontal plane, and the second reflecting mirror. The first mirror is placed at an angle of 45° with the horizontal plane, the angle between the reflection surface of the second mirror and the reflection surface of the first mirror is 165°, and the angle between the reflection surface of the third mirror and the reflection surface of the first mirror is 163°. | 2022-08-25 |
20220268979 | FLOATING MIRRORS TO LIMIT GLOBAL TEMPERATURE RISE AND METHODS OF USE - A floating mirror includes a buoyant body extending between a first end and a second end, and a reflective material disposed on opposite surfaces of the buoyant body. | 2022-08-25 |
20220268980 | COLOR FILTER AND METHOD OF MANUFACTURING THEREOF - A color filter and a method of manufacturing thereof are provided. The color filter includes a substrate, a black matrix block, and a color resist unit. The black matrix block includes a first black matrix unit and a second black matrix unit. The black matrix unit is composed of a hydrophilic material. and the second black matrix unit is composed a hydrophobic material. Only one color resist unit is disposed between any two adjacent black matrix blocks, and a side of the color resist unit away from the substrate includes a convex arc shape. | 2022-08-25 |
20220268981 | INDUCED TRANSMISSION FILTER - An optical filter may include a first group of layers. The first group of layers may include alternating layers of a first dielectric material, of a group of dielectric materials, and a second dielectric material of the group of dielectric materials. The optical filter may include a second group of layers. The second group of layers may include alternating layers of a third dielectric material, of the group of dielectric materials, and a fourth dielectric material of the group of dielectric materials. The optical filter may include a third group of layers. The third group of layers may include alternating layers of a fifth dielectric material, of the group of dielectric materials, a sixth dielectric material, of the group of dielectric materials, and a metal material. The third group of layers may be disposed between the first group of layers and the second group of layers. | 2022-08-25 |
20220268982 | One-Way Circularly Polarized Light Generated by Propagation through Ch-GLC Films Doped with Light-Absorbing Dyes - An optical system that includes a cholesteric glassy liquid crystal film doped with a dye and configured to preferentially absorb light of a first handedness, such as left-hand circularly polarized (LCP) light, but pass light of the opposite handedness, such a right-hand circularly polarized (RCP) light. Adding an anti-reflection coating can further increase the transmission-to-reflection ratio. | 2022-08-25 |
20220268983 | METHOD OF FORMING BIREFRINGENT STRUCTURES IN AN OPTICAL ELEMENT - A method of fabricating an optical element comprises: providing a substrate ( | 2022-08-25 |
20220268984 | Lightguide with a light input edge between lateral edges of a folded strip - A lightguide formed from a film comprises a light mixing region between a light emitting region and an array of coupling lightguides. The first coupling lightguide of the array of coupling lightguides comprises a first light input edge between an inner lateral edge of the first coupling lightguide and an outer lateral edge of the first coupling lightguide opposite the inner lateral edge, wherein a width of the first light input edge is less than a width of the first coupling lightguide at the light mixing region and the first coupling lightguide is folded toward the outer lateral edge such that the first light input edge is between the outer lateral edge and the inner lateral edge along the array direction. In one embodiment, the first light input edge is offset from the outer lateral edge and positioned above the first coupling lightguide. | 2022-08-25 |
20220268985 | ROLLABLE BACK SHEET FOR LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE USING SAME - Provided are a rollable back sheet for a light emitting device and a light emitting device using the same. The rollable back sheet includes a base film and a light guide pattern formed on the base film, and capable of blocking air from flowing into a gap between a release paper and the base film manufactured to have a line printing portion that completely adheres the base film to the release paper, thereby preventing the release paper and the base film from being separated from each other even when the base film is produced, distributed, stored, and used in a roll form and thus enabling long-term storage of the back sheet. | 2022-08-25 |
20220268986 | DISPLAY DEVICE, ILLUMINATION DEVICE, AND LIGHT GUIDING MEMBER - Display device is provided and includes display panel; and illumination device provided on rear surface side of display panel, wherein illumination device includes light sources, and light guiding member arranged at rear surface side of display panel, light guiding member has holes which penetrates the light guiding member, light sources are housed in corresponding hole, rear surface of light guiding member has first inclined surface inclined upwardly from light source housed in one of holes, front surface side of light guiding member has second inclined surface inclined upwardly from light source housed in one of the holes, and angle of first inclined surface to center line of one of holes is greater than angle of second inclined surface to center line. | 2022-08-25 |
20220268987 | ILLUMINATION DEVICE AND DISPLAY DEVICE - A backlight device includes at least a plurality of LEDs arranged in a row, a light guide plate including at least a light entering end face having a plate shape, and a light refracting portion configured with a plurality of unit light refracting portions arranged side by side on the light entering end face along an alignment direction of the plurality of LEDs, wherein in the light refracting portion, an occupancy rate occupied by the unit light refracting portion in an end side portion of the light entering end face in the alignment direction is made lower than an occupancy rate occupied by the unit light refracting portion in a central side portion of the light entering end face in the alignment direction. | 2022-08-25 |
20220268988 | ILLUMINATION DEVICE - An illumination device that simulates the sky, includes a light source that emits first light; a light-emitting part that allows the first light to enter, guides the entered first light by means of total reflection while scattering the first light, and emits the scattered light from a light emission surface; a back surface reflective part that is provided to face a back surface as a surface of the light-emitting part on a side opposite to the light emission surface and reflects light emitted from the back surface of the light-emitting part; a frame that includes a part situated at least in front of the light emission surface of the light-emitting part; and an optical member that is provided between the light emission surface of the light-emitting part and the part of the frame and reflects a part of the light emitted from the light emission surface of the light-emitting part. | 2022-08-25 |
20220268989 | BACKPLATE AND DISPLAY PANEL - A backplate and a display panel are disclosed. The backplate includes a first transverse edge portion, a second transverse edge portion disposed opposite to the first transverse edge portion, a first longitudinal edge portion, and a second longitudinal edge portion disposed opposite to the first longitudinal edge portion. The first longitudinal edge portion is connected to the first transverse edge portion and the second transverse edge portion, the second longitudinal edge portion is connected to the first transverse edge portion and the second transverse edge portion, and an accommodation chamber is defined by the first transverse edge portion, the second transverse edge portion, the first longitudinal edge portion, and the second longitudinal edge portion. | 2022-08-25 |
20220268990 | SINGLE FIBER ILLUMINATED LASER PROBE WITH HIGH-ANGLE ILLUMINATION OUTPUT - The present disclosure relates to a fiber and a laser probe assembly with a probe tip that houses the fiber. In certain aspects, the fiber includes a core, an outer cladding surrounding the core, and an end face at a proximal and/or distal end of the fiber. The core is configured to transmit a laser light beam while the core and the outer cladding are both configured to transmit an illumination light. In certain aspects, a surface area of the end face corresponding to a cross-section of at least the outer cladding is treated with a roughening or polishing process to modulate an illumination light output angle of the fiber. Using a fiber that is configured to transmit a laser light beam as well as a wide-angle illumination light allows for a more compact fiber and probe tip, allowing for medical procedures that require a narrower probe. | 2022-08-25 |
20220268991 | Single-Mode Crystal Fiber - A single-mode crystal fiber is provided. The fiber has a core. The core is made of a crystalline material with a melting point above 1900 degrees Celsius (° C.). The core has a coat. The coat is made of a crystalline material the same as that of the core. Through immersion plating under a low vacuum pressure and a high temperature, the material of the coat is sintered to form an outer layer covering the core. Thus, the thickness of the coat is controlled. A single crystal totally the same as that of the core is grown in a solid state with no ceramics contained. Consequently, the crystal contains no ceramics; and, through being sintered in a vacuum environment, the crystal has pores the smallest in size and the fewest in number, as compared to those sintered under a normal pressure. | 2022-08-25 |
20220268992 | PASPOL LIGHT GUIDE AND METHOD FOR MANUFACTURING PASPOL LIGHT GUIDE - A method for manufacturing a Paspol light guide includes disposing a plurality of light guides adjacent to one another so that the light guides form a light-guide bundle, disposing an at least partially light-transparent fabric along at least one partial section of the light-guide bundle, sheathing the light-guide bundle by the fabric so that the fabric forms a fabric sleeve, and closing the fabric sleeve along its longitudinal side. When viewed in a cross-section, the fabric sleeve forms a flag protruding from the light-guide bundle. | 2022-08-25 |
20220268993 | THIN FILM OPTICAL WAVEGUIDE AND PREPARATION METHOD THEREFOR - A thin film optical waveguide includes a silicon-based substrate, a cladding layer arranged on the silicon-based substrate, and an optical waveguide core layer arranged on the silicon-based substrate. The optical waveguide core layer is arranged in the cladding layer, the refractive index of the optical waveguide core layer is higher than that of the cladding layer, the optical waveguide core layer includes a double-layer optical waveguide dielectric thin film and a thin film material interlayer arranged between the double-layer optical waveguide dielectric thin film, the thin film material interlayer has a two-dimensional lattice sub-wavelength structure, and the effective lattice constant and the duty cycle of the two-dimensional lattice sub-wavelength structure are approximately the same in each propagation direction, so as to make the effective refractive index of the thin film optical waveguide approximately isotropic. | 2022-08-25 |
20220268994 | PHOTONICS INTEGRATED CIRCUIT WITH SILICON NITRIDE WAVEGUIDE EDGE COUPLER - A photonics integrated circuit includes a semiconductor substrate; a buried insulator layer positioned over the semiconductor substrate; and a back-end-of-line (BEOL) insulator stack over a first portion of the buried insulator layer. In addition, the PIC includes a silicon nitride (SiN) waveguide edge coupler positioned in a first region over the buried insulator layer and at least partially under the BEOL insulator stack. An oxide layer extends over a side of the BEOL insulator stack. The SiN waveguide edge coupler provides better power handling and fabrication tolerance than silicon waveguide edge couplers, despite the location under various BEOL layers. The PIC can also include silicon waveguide edger coupler(s). | 2022-08-25 |