Of Pulse Transit Time Patents (Class 356/5.01)
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Patent number: 12248100Abstract: A computing system may operate a LIDAR device to emit and detect light pulses in accordance with a time sequence including standard detection period(s) that establish a nominal detection range for the LIDAR device and extended detection period(s) having durations longer than those of the standard detection period(s). The system may then make a determination that the LIDAR detected return light pulse(s) during extended detection period(s) that correspond to particular emitted light pulse(s). Responsively, the computing system may determine that the detected return light pulse(s) have detection times relative to corresponding emission times of particular emitted light pulse(s) that are indicative of one or more ranges. Given this, the computing system may make a further determination of whether or not the one or more ranges indicate that an object is positioned outside of the nominal detection range, and may then engage in object detection in accordance with the further determination.Type: GrantFiled: January 15, 2024Date of Patent: March 11, 2025Assignee: Waymo LLCInventor: Mark Alexander Shand
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Optical sensor according to the time-of-flight principle for detecting objects in a monitored region
Patent number: 12248104Abstract: The invention relates to an optical sensor according to the time-of-flight principle for detecting objects in a monitored region, having a first transmitter for transmitting first light pulses into the monitored region, a first receiver for detecting first light pulses radiated back by a first object to be detected in the monitored region, a second transmitter for transmitting second light pulses into the monitored region, a second receiver for detecting second light pulses radiated back by the first object or by a further object in the monitored region, a control and evaluation unit which is designed to control the first transmitter and to evaluate the first light pulses detected by the first receiver and to control the second transmitter and to evaluate the second light pulses detected by the second receiver, characterised in that between the first transmitter and the second receiver a first optical reference path is formed, between the second transmitter and the first receiver a second optical reference paType: GrantFiled: October 11, 2019Date of Patent: March 11, 2025Assignee: Pepperl+Fuchs SEInventors: Lutz Lohmann, Hinrik Weber -
Patent number: 12242001Abstract: A LiDAR sensor includes a first lens, a first laser source configured to emit a plurality of first light pulses to be collimated by the first lens, a flood illumination source configured to emit a plurality of second light pulses as diverging light rays, a second lens configured to receive and focus (i) a portion of any one of the plurality of first light pulses and (ii) a portion of any one of the plurality of second light pulses that are reflected off of the one or more objects, a detector configured to detect (i) the portion of any one of the plurality of first light pulses and (ii) the portion of any one of the plurality of second light pulses, and a processor configured to construct a three-dimensional image of the one or more objects based on the detected portions of first light pulses and second light pulses.Type: GrantFiled: March 18, 2021Date of Patent: March 4, 2025Assignee: Cepton Technologies, Inc.Inventor: Mark Armstrong McCord
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Patent number: 12242002Abstract: A laser radar, comprising: a laser (10): used for emitting a laser light beam; a probe (20): used for receiving the reflected laser light beam; and a set of transceiver structures (30): used for receiving the laser light beam emitted along a preset direction and conveying the laser light beam to the probe (20), the transceiver structures (30) being arranged coaxially with the laser (10), the transceiver structures (30) comprising a vertical field of view adjustment unit, and the vertical field of view adjustment unit making the laser light beam have a non-uniform distribution in the vertical field of view range and/or adjusting the vertical field of view range of the laser.Type: GrantFiled: June 27, 2019Date of Patent: March 4, 2025Assignee: Velodyne Lidar USA, Inc.Inventor: Shaoqing Xiang
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Patent number: 12228653Abstract: An example system includes an infrared emitter to output infrared light towards a target, where the infrared light reflects from the target to produce reflected infrared light, and a detector to receive the reflected infrared light and to provide a signal based on the reflected infrared light. The system also includes a lighting system that includes a light emitter to output visible light, a mirror configured (i) to allow the visible light to pass through the mirror and to reflect the reflected infrared light onto the detector, or (ii) to allow the reflected infrared light to pass through the mirror and onto the detector and to reflect the visible light, and one or more optical elements configured to affect the visible light and the reflected infrared light.Type: GrantFiled: October 7, 2022Date of Patent: February 18, 2025Assignee: Magna Electronics, LLCInventors: Bernard de Mersseman, Peter Hansson
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Patent number: 12222453Abstract: The invention concerns a TOF vision camera and proposes an electronic control circuit comprising a modulation circuit MOD for modulating the carrier clock signal, applying a camera-specific pulse position modulation function k(t) in order to output a modulation clock signal fe which is applied in the camera as a camera light source modulation signal S-LED, in order to control the emission of a series of light pulses SE and in order to synchronously control the N capture phases ST0, ST1, ST2, ST3 of the matrix image sensor CI of the camera. This modulation clock signal fe is such that the clock pulses fe have a constant pulse duration Tp, fixed by the carrier frequency fp, where Tp=½fp, and with a variable time interval Toff between two successive pulses, modulated by said modulation function k(t), said time interval being at least equal to the pulse duration, defining a modulation clock cycle ratio fe that is variable but less than or equal to 50%.Type: GrantFiled: March 1, 2019Date of Patent: February 11, 2025Assignee: TELEDYNE E2V SEMICONDUCTORS SASInventors: Pierre Fereyre, Christophe Mailland, Pierre-Emmanuel Ville
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Patent number: 12222424Abstract: Devices, systems, and methods are provided for reducing interference of light detection and ranging (LIDAR) emissions. A vehicle may identify location information associated with a location of the vehicle. The vehicle may select, based on the location information, a modulation code associated with a LIDAR photodiode of the vehicle. The vehicle may emit, using the LIDAR photodiode, one or more LIDAR pulses based on the modulation code.Type: GrantFiled: March 15, 2021Date of Patent: February 11, 2025Assignee: LG INNOTEK CO., LTD.Inventor: Yahia Tachwali
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Patent number: 12216270Abstract: An optical distance measuring system includes a first transmitter, a first solid state device, and a receiver. The first transmitter is configured to generate a first optical waveform. The first solid state device is configured to receive the first optical waveform and steer the first optical waveform toward a target object. The receiver is configured to receive the first optical waveform reflected off of the first target object and determine a distance to the first target object based on a time of flight from the transmitter to the first target object and back to the receiver.Type: GrantFiled: July 21, 2021Date of Patent: February 4, 2025Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: David P. Magee, Nirmal C. Warke, Stephen Aldridge Shaw, Terry Alan Bartlett, Rick Oden
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Patent number: 12219267Abstract: A light source module includes an array of illumination elements and an optional projecting lens. The light source module is configured to receive or generate a control signal for adjusting different ones of the illumination elements to control a light field emitted from the light source module. In some embodiments, the light source module is also configured to adjust the projecting lens responsive to objects in an illuminated scene and a field of view of an imaging device. A controller for a light source module may determine a light field pattern based on various parameters including a field of view of an imaging device, an illumination sensitivity model of the imaging device, depth, ambient illumination and reflectivity of objects, configured illumination priorities including ambient preservation, background illumination and direct/indirect lighting balance, and so forth.Type: GrantFiled: September 22, 2022Date of Patent: February 4, 2025Assignee: Apple Inc.Inventors: Bosheng Zhang, Angelo M Alaimo, Bryan Dang
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Patent number: 12208790Abstract: The present disclosure introduces a vehicle safety control system and a vehicle safety control method, which recognize, in advance, an obstacle approaching the vehicle around the vehicle, and, when the vehicle and the obstacle come near each other in distance, operate SVM to determine the possibility of collision between the vehicle and the obstacle in advance, and prevent a collision accident by controlling the vehicle on the basis of the possibility of collision between the vehicle and the obstacle.Type: GrantFiled: February 17, 2022Date of Patent: January 28, 2025Assignee: HYUNDAI MOBIS CO., LTD.Inventors: Min Seok Kim, Tae Min Kwon
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Patent number: 12204027Abstract: A distance measuring device is disclosed that includes a controller operably coupled with a receiver to receive different amplification channels. The controller includes a time of flight core configured to determine time of flight information for the light pulse; and a decider block configured to determine a measurement correction value for the device based on a determination of a presence of a reflective background that is different than a measurement correction value selected for the device when there exists a diffuse background or an absence of a background into a reading field.Type: GrantFiled: December 4, 2020Date of Patent: January 21, 2025Assignee: Datalogic IP Tech S.r.l.Inventors: Salvatore Valerio Cani, Enrico Lorenzoni, Lorenzo Girotti
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Patent number: 12196854Abstract: Doppler correction of phase-encoded LIDAR includes a code indicating a sequence of phases for a phase-encoded signal, and determining a first Fourier transform of the signal. A laser optical signal is used as a reference and modulated based on the code to produce a transmitted phase-encoded optical signal. A returned optical signal is received in response. The returned optical signal is mixed with the reference. The mixed optical signals are detected to produce an electrical signal. A cross spectrum is determined between in-phase and quadrature components of the electrical signal. A Doppler shift is based on a peak in the cross spectrum. A device is operated based on the Doppler shift. Sometimes a second Fourier transform of the electrical signal and the Doppler frequency shift produce a corrected Fourier transform and then a cross correlation. A range is determined based on a peak in the cross correlation.Type: GrantFiled: January 20, 2023Date of Patent: January 14, 2025Assignee: AURORA OPERATIONS, INC.Inventors: Stephen C. Crouch, Randy R. Reibel, James Curry, Michelle Milvich, Krishna Rupavatharam
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Patent number: 12198424Abstract: Systems, methods, and software of inspecting growth areas for plants. In one embodiment, an inspection system captures a plurality of digital images of the growth area from different angles in relation to the growth area, and processes the digital images to identify a boundary of the growth area in the digital images. The inspection system combines the digital images based on the boundary identified in the digital images to generate a composite image of the growth area, and performs image processing on the composite image to detect one or more deficient growth regions in the growth area. The inspection system highlights the deficient growth regions in the composite image, and displays the composite image with the deficient growth regions highlighted.Type: GrantFiled: April 19, 2022Date of Patent: January 14, 2025Assignee: Nokia Technologies OyInventor: Jacquilene Jacob
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Patent number: 12187187Abstract: The present disclosure relates to determining a first illumination level corresponding to an area based at least on a first illumination detection obtained using a first illumination detector corresponding to a machine. A second illumination level corresponding to the area may be determined based at least on a second illumination detection obtained using a second illumination detector corresponding to the machine. Based at least on the first illumination level and the second illumination level, a scene illumination state of the area may be determined. Based at least on the scene illumination state, one or more lights of the machine may be controlled.Type: GrantFiled: August 16, 2023Date of Patent: January 7, 2025Assignee: NVIDIA CORPORATIONInventors: Keerthi Raj Nagaraja, Arjun Gupta, Abhishek Bajpayee, Kivanc Temel, Dylan Doblar, Sai Krishnan Chandrasekar, Yu Wang
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Patent number: 12181611Abstract: Methods for detecting a time-of-flight include: emitting a light pulse toward a target; detecting a presence of light received at a light detector; obtaining a delay time between emitting the light pulse and detecting the presence of the light at the light detector; responsive to obtaining the delay time, (a) updating an overall intensity counter that counts a total number of delay times that have been obtained and (b) updating a delay time counter out of a plurality of different delay time counters, wherein each delay time counter counts a total number of delay times obtained that have a corresponding delay time value; and monitoring a threshold of each delay time counter to determine whether a threshold value is exceeded.Type: GrantFiled: March 18, 2020Date of Patent: December 31, 2024Assignee: AMS INTERNATIONAL AGInventors: Thomas Jessenig, Robert Kappel, Manfred Lueger, Christian Mautner
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Patent number: 12181285Abstract: An electronic apparatus and a method of controlling thereof are provided. The method of controlling the electronic apparatus includes obtaining a light detection and ranging (LiDAR) map for estimating a location of the electronic apparatus, based on an event for obtaining the location of the electronic apparatus occurring, obtaining geomagnetic information around the electronic apparatus using a geomagnetic sensor, identifying a direction of the electronic apparatus based on the obtained geomagnetic information, and obtaining the location of the electronic apparatus on the LiDAR map based on the identified direction and the LiDAR sensor.Type: GrantFiled: February 4, 2021Date of Patent: December 31, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Yosub Park, Hyunki Hong, Jewoong Ryu, Sejin Kwak
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Patent number: 12169254Abstract: A Lidar system is provided. The Lidar system comprise: a light source configured to emit a multi-pulse sequence to measure a distance between the Lidar system and a location in a three-dimensional environment, and the multi-pulse sequence comprises multiple pulses having a temporal profile; a photosensitive detector configured to detect light pulses from the three-dimensional environment; and one or more processors configured to: determine a coding scheme comprising the temporal profile, wherein the coding scheme is determined dynamically based on one or more real-time conditions including an environment condition, a condition of the Lidar system or a signal environment condition; and calculate the distance based on a time of flight of a sequence of detected light pulses, wherein the time of flight is determined by determining a match between the sequence of detected light pulses and the temporal profile.Type: GrantFiled: May 28, 2024Date of Patent: December 17, 2024Assignee: HESAI TECHNOLOGY CO., LTD.Inventors: Xuezhou Zhu, Shaoqing Xiang
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Patent number: 12163827Abstract: By a control device, a control method, or a non-transitory tangible storage medium storing a control program for controlling an optical sensor that includes a plurality of single photon avalanche diodes for each light reception pixel and receives light from a sensing area, a light reception signal waveform is acquired. The light reception signal waveform includes: a reflection light output component; and an external light output component, and a reflection intensity of the reflection light is estimated based on a correlation between a reflection light response number and an external light response number.Type: GrantFiled: February 15, 2024Date of Patent: December 10, 2024Assignee: DENSO CORPORATIONInventor: Kenta Azuma
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Patent number: 12153134Abstract: A light ranging system can include a laser device and an imaging device having photosensors. The laser device illuminates a scene with laser pulse radiation that reflects off of objects in the scene. The reflections can vary greatly depending on the reflecting surface shape and reflectivity. The signal measured by photosensors can be filtered with a number of matched filter designed according to profiles of different reflected signals. A best matched filter can be identified, and hence information about the reflecting surface and accurate ranging information can be obtained. The laser pulse radiation can be emitted in coded pulses by allowing weights to different detection intervals. Other enhancements include staggering laser pulses and changing an operational status of photodetectors of a pixel sensor, as well as efficient signal processing using a sensor chip that includes processing circuits and photosensors.Type: GrantFiled: July 31, 2023Date of Patent: November 26, 2024Assignee: Ouster, Inc.Inventors: Angus Pacala, Mark Frichtl
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Patent number: 12153140Abstract: Imaging apparatus (22) includes a radiation source (40), which emits pulsed beams (42) of optical radiation toward a target scene (24). An array (52) of sensing elements outputs signals indicative of respective times of incidence of photons on the sensing elements. Objective optics (54) form a first image of the target scene on the array of sensing elements. An image sensor (64) captures a second image of the target scene. Processing and control circuitry (56, 58) is configured to process the second image so as to detect a relative motion between at least one object in the target scene and the apparatus, and which is configured to construct, responsively to the signals from the array, histograms of the times of incidence of the photons on the sensing elements and to adjust the histograms responsively to the detected relative motion, and to generate a depth map of the target scene based on the adjusted histograms.Type: GrantFiled: September 2, 2019Date of Patent: November 26, 2024Assignee: APPLE INC.Inventors: David Silver, Eitan Hirsh, Moshe Laifenfeld, Tal Kaitz
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Patent number: 12146954Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.Type: GrantFiled: July 6, 2023Date of Patent: November 19, 2024Assignee: Ouster, Inc.Inventors: Angus Pacala, Mark Frichtl
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Patent number: 12145214Abstract: A laser processing head includes: a housing; an entrance portion; an adjustment portion; and a condensing portion. A distance between a third wall portion and a fourth wall portion facing each other in a second direction is shorter than a distance between a first wall portion and a second wall portion facing each other in a first direction. The housing is configured to be attached to an attachment portion of a laser processing apparatus, with at least one of the first wall portion, the second wall portion, the third wall portion, and a fifth wall portion disposed on the side of the attachment portion. The condensing portion is disposed on a sixth wall portion, and is offset toward the fourth wall portion in the second direction.Type: GrantFiled: October 30, 2019Date of Patent: November 19, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takeshi Sakamoto, Junji Okuma
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Patent number: 12140680Abstract: An apparatus comprising a housing, a mount configured to be coupled to a motor to horizontally move the apparatus, a wide-angle lens coupled to the housing, the wide-angle lens being positioned above the mount thereby being along an axis of rotation, the axis of rotation being the axis along which the apparatus rotates, an image capture device within the housing, the image capture device configured to receive two-dimensional images through the wide-angle lens of environment, and a LiDAR device within the housing, the LiDAR device configured to generate depth data based on the environment.Type: GrantFiled: March 28, 2024Date of Patent: November 12, 2024Assignee: Matterport, Inc.Inventors: David Alan Gausebeck, Kirk Stromberg, Louis D. Marzano, David Proctor, Naoto Sakakibara, Simeon Trieu, Kevin Kane, Simon Wynn
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Patent number: 12140752Abstract: A micro-electromechanical system (MEMS) apparatus has an array of micro-mirrors and a control circuit for rotating the micro-mirrors synchronously at a resonant frequency. The MEMS apparatus includes elements with different Coefficients of Thermal Expansion (CTE) for a die substrate coupled to the array of micro-mirrors, a die attach layer, a chip package coupled to the die substrate and a printed circuit board coupled to the chip package. The apparatus provides mechanisms for reducing changes in the resonant frequency due to changes in temperature causing stresses due to a mismatch between the CTE of the different elements. A thermoelectric cooler is used, along with the optional addition of heating resistors, additional pins to distribute stress, and the widened vias allowing room for the pins to bend and relieve stress on the chip package.Type: GrantFiled: December 29, 2020Date of Patent: November 12, 2024Assignee: Beijing Voyager Technology Co., Ltd.Inventors: Sae Won Lee, Youmin Wang, Anan Pan
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Patent number: 12140679Abstract: An apparatus comprising a housing, a mount configured to be coupled to a motor to horizontally move the apparatus, a wide-angle lens coupled to the housing, the wide-angle lens being positioned above the mount thereby being along an axis of rotation, the axis of rotation being the axis along which the apparatus rotates, an image capture device within the housing, the image capture device configured to receive two-dimensional images through the wide-angle lens of environment, and a LiDAR device within the housing, the LiDAR device configured to generate depth data based on the environment.Type: GrantFiled: March 28, 2024Date of Patent: November 12, 2024Assignee: Matterport, Inc.Inventors: David Alan Gausebeck, Kirk Stromberg, Louis D. Marzano, David Proctor, Naoto Sakakibara, Simeon Trieu, Kevin Kane, Simon Wynn
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Patent number: 12136276Abstract: Disclosed are methods, devices, and computer-readable media for detecting lanes and objects in image frames of a monocular camera. In one embodiment, a method is disclosed comprising receiving a plurality of images; identifying a horizon in the plurality of images by inputting the plurality of images into a deep learning (DL) model (either stored on a local device or via a network call); determining one or more camera parameters based on the horizon; and storing or using the camera parameters to initialize a camera.Type: GrantFiled: December 1, 2023Date of Patent: November 5, 2024Assignee: MOTIVE TECHNOLOGIES, INC.Inventors: Ali Hassan, Ahmed Ali, Syed Wajahat Ali Shah Kazmi
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Patent number: 12130382Abstract: The present application is applicable to the technical field of a LiDAR, and provides a LiDAR control method, a terminal apparatus, and a computer-readable storage medium. The LiDAR control method includes the following steps: acquiring first echo data; when an oversaturated region is determined to exist according to the first echo data, controlling LiDAR to measure a scanning region according to a second preset scanning mode to obtain second echo data; performing data fusion processing based on the first echo data and the second echo data to obtain target data. The LiDAR is controlled to measure according to the first preset scanning mode and a second preset scanning mode, and then fusion is performed based on the measured first echo data and second echo data, thereby effectively eliminating a problem of signal crosstalk caused by too high reflection energy of an object with high reflectivity, and effectively improving measurement accuracy.Type: GrantFiled: December 26, 2022Date of Patent: October 29, 2024Assignee: SUTENG INNOVATION TECHNOLOGY CO., LTD.Inventor: Changsheng Gong
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Patent number: 12123953Abstract: A three-dimensional depth capture system based on active light projection. The system includes a light projector, a camera, and a data processing system. The light projector can project a spatial-temporal light pattern over a two-dimensional field-of-view configured to measure three-dimensional depth of objects illuminated by the light pattern. The light pattern can be projected as a finite sequence of discrete frames. A propagating light field of each of discrete frame can have a spatial intensity pattern. The projected discrete frames can be mathematically described as a product of separated spatial and temporal functions, where the camera functions to image objects illuminated by the projector. The camera can be positioned at a finite baseline distance from the projector, following geometrical guidance of structured light triangulation depth sensing. The camera can have a time-of-flight (TOF) sensor, where the sensor is temporally synchronized with the projector.Type: GrantFiled: March 3, 2022Date of Patent: October 22, 2024Assignee: Focal Length LLCInventors: Robert John Collier, Trevor Shay Strickler
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Patent number: 12117531Abstract: A light emitting element emits detecting light toward an outside area of a vehicle. A light receiving element outputs a light receiving signal corresponding to reflected light. A processor detects information of the outside area on the basis of the light receiving signal. A translucent cover forms a part of an outer surface of the vehicle, and has a plurality of flat portions allowing passage of the detecting light. The processor excludes, from the information to be detected, a position corresponding a boundary portion between adjacent ones of the flat portions.Type: GrantFiled: July 23, 2019Date of Patent: October 15, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Misako Kamiya
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Patent number: 12117569Abstract: A method of calibrating a LiDAR sensor mounted on a vehicle includes storing a reference three-dimensional image acquired by the LiDAR sensor while the LiDAR sensor is in an expected alignment with respect to the vehicle. The reference three-dimensional image includes a first image of a fixed feature on the vehicle. The method further includes, acquiring, using the LiDAR sensor, a three-dimensional image including a second image of the fixed feature, and determining a deviation from the expected alignment of the LiDAR sensor with respect to the vehicle by comparing the second image of the fixed feature in the three-dimensional image to the first image of the fixed feature in the reference three-dimensional image.Type: GrantFiled: October 13, 2020Date of Patent: October 15, 2024Assignee: Cepton Technologies, Inc.Inventors: Dongyi Liao, Zukai Wang, Mark A. McCord, Chao Gu
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Patent number: 12111426Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.Type: GrantFiled: March 31, 2023Date of Patent: October 8, 2024Inventors: Tso-Sheng Tsai, Yueh-Lin Chung, Shin-Lin Wang
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Patent number: 12111423Abstract: An electronic apparatus capable of determining a distance to an object based on reflected light provided by a reflection of a pulsed light on the object includes an input terminal configured to receive a signal of intensity of reception light. Processing circuitry determines a measurement range capable of specifying a peak of the reception light based on the intensity of the reception light, detects the reflected light by specifying the peak of the reception light within the measurement range, determines, based on the measurement range, a duration from when the pulsed light is emitted until when the reflected light is received, and determines a distance from the electronic apparatus to the object according to the duration.Type: GrantFiled: September 9, 2019Date of Patent: October 8, 2024Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hidenori Okuni, Tuan Thanh Ta, Satoshi Kondo, Akihide Sai
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Patent number: 12105224Abstract: Disclosed is a single pass light detection and ranging (LiDAR) laser method, including building a coarse histogram, detecting a first peak of laser pulses in the coarse histogram, determining whether the first peak height is greater than a first threshold and a location of the first peak is less than or equal to a second threshold, when determining that the first peak height is greater than the first threshold and the location of the first peak is less than or equal to the second threshold, building a fine histogram, and detecting a peak of laser pulses in the fine histogram, and when determining that the first peak height is less than or equal to the first threshold and the location of the first peak is greater than the second threshold, continuing the building of the coarse histogram, and detecting a second peak of the laser pulses in the coarse histogram.Type: GrantFiled: July 14, 2022Date of Patent: October 1, 2024Assignee: Samsung Electronics Co., LtdInventors: Yibing Michelle Wang, Chunji Wang
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Patent number: 12098924Abstract: A function control method can be applied to a first device configured with a smart space semantic map and include: determining a first location of the first device in the smart space semantic map; determining, based on the first location, a second device in the smart space semantic map, the second device having the capability of executing a first function; and performing a predetermined action, to cause the second device to execute the first function.Type: GrantFiled: July 21, 2021Date of Patent: September 24, 2024Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.Inventors: Jinping Qu, Juejia Zhou, Dian Fan
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Patent number: 12099143Abstract: An electromagnetic wave irradiated by an irradiator (10) is incident on and reflected by a movable reflection unit (20). The control unit (30) controls the irradiator (10) and the movable reflection unit (20). A sensor (40) is disposed at a position through which the electromagnetic wave when an irradiation direction of the electromagnetic wave is moved in a first direction. Then, the control unit (30) executes the following processing in setting a movement range of the movable reflection unit (20). First, a detection value (first detection value) of the sensor (40) when light is irradiated at a first position Sa positioned ahead of the sensor (40) in the first direction is recognized. Next, a detection value (second detection value) of the sensor (40) when light is irradiated at a second position Sb positioned behind the sensor (40) in the first direction is recognized. Then, the movement range of the movable reflection unit (20) is set using the first detection value and the second detection value.Type: GrantFiled: February 7, 2019Date of Patent: September 24, 2024Assignee: PIONEER CORPORATIONInventors: Koji Yamamoto, Shogo Miyanabe
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Patent number: 12092766Abstract: Various technologies described herein pertain to injection locking on-chip laser(s) and external on-chip resonator(s). A system includes a first integrated circuit chip and a second integrated circuit chip. The first integrated circuit chip and the second integrated circuit chip are separate integrated circuit chips and can be optically coupled to each other. The first integrated circuit chip includes a laser configured to emit light via a first path and a second path. The second integrated circuit chip includes a resonator formed of an electrooptic material. The resonator can receive the light emitted by the laser of the first integrated circuit chip via the first path and return feedback light to the laser of the first integrated circuit chip via the first path. The feedback light can cause injection locking of the laser to the resonator to control the light emitted by the laser (e.g., via the first and second paths).Type: GrantFiled: October 10, 2022Date of Patent: September 17, 2024Assignee: GM Cruise Holdings LLCInventors: Jacob Levy, Ayan Chakrabarty, Vala Fathipour, Karim El Amili
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Patent number: 12092767Abstract: A method of a sensing device, comprising steps of emitting, by a light source of the sensing device, a light pulse in each of n cycles; measuring, by a single photon avalanche diodes array of the sensing device, a time-of-flight value with a resolution of m in each of the n cycles to generate n raw data frames based on a reflected light of the light pulse; performing, by a pre-processing circuit of the sensing device, a pre-processing operation to n raw data frames to generate k pre-processed data frames, wherein m, n and k are natural numbers, and k is smaller than n; and generating, by post-processor of the sensing device, a histogram according to the k pre-processed data frames and analyzing the histogram to output a depth result.Type: GrantFiled: April 11, 2023Date of Patent: September 17, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chin Yin, Shang-Fu Yeh, Calvin Yi-Ping Chao, Chih-Lin Lee, Meng-Hsiu Wu
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Patent number: 12092762Abstract: A LiDAR sensing device including: a sensing light source unit configured to radiate sensing light; a light transmitting reflector configured to reflect the sensing light radiated from the sensing light source unit; a scanner unit configured to reflect the sensing light reflected from the light transmitting reflector into a target, and to reflect incident light reflected from the target; a light receiving lens configured to pass the incident light reflected from the scanner unit, and integrated with the light transmitting reflector; a light receiving reflector configured to reflect the incident light passing through the light receiving lens; and an optical detecting unit into which the incident light reflected from the light receiving reflector is incident.Type: GrantFiled: July 11, 2021Date of Patent: September 17, 2024Assignee: HYUNDAI MOBIS CO., LTD.Inventors: Won Gyum Kim, Young Shin Kim, Kyung Rin Kim, Sung Eun Jo
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Patent number: 12085671Abstract: A distance detector 10 includes a light projecting unit 100 which projects light toward a target body, a light receiving unit 200 which receives a reflected light from the target body, a time detection unit 310 which detects a light receiving time from the projecting of measuring light by the light projecting unit 100 to the receiving of the reflected light by the light receiving unit 200, a calculation unit 320 which calculates the distance to the target body based on a detection result of the light receiving time by the time detection unit 310, and an evaluation unit 340 which evaluates the reliability of a calculation result of the distance to the target body by the calculation unit 320 based on a deviation of the distance corresponding to the calculation result from a reference value regarding the distance to the target body.Type: GrantFiled: January 28, 2021Date of Patent: September 10, 2024Assignees: NIKON VISION CO., LTD., NIKON CORPORATIONInventors: Takehito Nonomura, Takeshi Inoue
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Patent number: 12078722Abstract: A distance measurement device includes: an emission and exposure controller which controls emission timing and an emission period of irradiation light for an emitter and controls exposure timing and an exposure period of reflected light for a solid-state image sensor; and a data processor which includes a calculator that calculates distance data and light intensity data based on signals of pixels outputted by a light receiver. The emission and exposure controller controls the exposure timing to perform exposure to reflected light from a first distance and not to perform exposure to reflected light from a second distance longer than the first distance in a distance measurement range. The data processor includes a determination unit which determines reliability of the distance data in accordance with a signal amount of the light intensity data for each of the pixels.Type: GrantFiled: January 21, 2021Date of Patent: September 3, 2024Assignee: NUVOTON TECHNOLOGY CORPORATION JAPANInventor: Seiji Nakamura
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Patent number: 12074636Abstract: A method by which a transmission terminal transmits a signal in an optical wireless communication system can comprise: transmitting a first optical signal including a reference signal to a reception terminal having established a communication link with the transmission terminal; receiving feedback information about the first optical signal from the reception terminal; and transmitting a second optical signal to the reception terminal on the basis of the feedback information, wherein an orbital angular momentum (OAM) mode of the second optical signal can be selected on the basis of the feedback information.Type: GrantFiled: June 28, 2019Date of Patent: August 27, 2024Assignee: LG ELECTRONICS INC.Inventors: Hojae Lee, Sangrim Lee, Kijun Jeon
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Patent number: 12072419Abstract: The disclosed technology provides solutions for generating synthetic 3D environments, In some aspects, the disclosed technology includes a process of synthetic environment generation that includes steps for collecting sensor data corresponding with a three-dimensional (3D) space, generating a 3D mesh based on the sensor data, and generating one or more synthetic 3D objects based on the 3D mesh and the sensor data. In some aspects, the process can further include steps for generating a 3D synthetic environment comprising the one or more synthetic 3D objects, wherein the 3D synthetic environment is generated based on the 3D mesh. Systems and machine-readable media are also provided.Type: GrantFiled: December 17, 2020Date of Patent: August 27, 2024Assignee: GM Cruise Holdings LLCInventors: Benjamin Goldstein, Gen Nishida, Eileen Bai
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Patent number: 12066573Abstract: An optoelectronic sensor for detecting an object in a monitored zone having at least one light source for transmitting transmitted light, a light receiver having a reception optics arranged upstream for generating received signals from light beams remitted at the object, and a control and evaluation unit for acquiring information on the object from the received signals has a beam splitter arrangement arranged downstream of the light source for splitting the transmitted light into a plurality of transmitted light beams separated from one another, wherein the beam splitter arrangement includes a plurality of switchable beam splitters for splitting the transmitted light.Type: GrantFiled: December 3, 2020Date of Patent: August 20, 2024Assignee: SICK AGInventor: Siegfried Ringwald
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Patent number: 12066575Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light. The emitted pulses of light include one or more series of standard-resolution pulses alternating with one or more series of high-resolution pulses. Each series of the standard-resolution pulses includes multiple pulses having a standard pulse period, and each series of the high-resolution pulses includes multiple pulses having a high-resolution pulse period. The standard pulse period is greater than or equal to a round-trip time associated with a maximum range of the lidar system, and the high-resolution pulse period is less than the standard pulse period. The lidar system also includes a scanner configured to scan at least a portion of the emitted pulses of light across a field of regard.Type: GrantFiled: August 9, 2022Date of Patent: August 20, 2024Assignee: Luminar Technologies, Inc.Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Jason M. Eichenholz
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Patent number: 12061291Abstract: Embodiments of the disclosure provide a system for controlling laser pulses emitted by an optical sensing device. The system may include a laser emitter configured to emit a plurality of laser pulses, a power source configured to deliver electrical currents to the laser emitter, and a control circuit configured to deliver electrical currents from the power source to the laser emitter. The control circuit may include a first control path configured to deliver a first electrical current rising at a first rate from the power source to the laser emitter to emit a first laser pulse. The control circuit may also include a second control path configured to deliver a second electrical current rising at a second rate from the power source to the laser emitter to emit a second laser pulse following the first laser pulse. The second rate may be higher than the first rate.Type: GrantFiled: January 11, 2021Date of Patent: August 13, 2024Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.Inventors: Yu-Ching Yeh, Yue Lu, Jihua Li, Youmin Wang
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Patent number: 12050288Abstract: In accordance with some embodiments, a light detection and ranging (LiDAR) scanning system includes a light source. The light source is configured to transmit a pulse of light. The LiDAR scanning system also includes a beam steering apparatus configured to steer the pulse of light in at least one of vertically and horizontally along an optical path. The beam steering apparatus is further configured to concurrently collect scattered light generated based on the light pulse illuminating an object in the optical path. The scattered light is coaxial or substantially coaxial with the optical path. The LiDAR scanning system further includes a light converging apparatus configured to direct the collected scattered light to a focal point. The LiDAR scanning system further includes a light detector, which is situated substantially at the focal point. In some embodiments, the light detector can include an array of detectors or detector elements.Type: GrantFiled: June 3, 2021Date of Patent: July 30, 2024Assignee: Seyond, Inc.Inventors: Yimin Li, Junwei Bao
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Patent number: 12050269Abstract: A dual lens assembly positioned along an optical receive path within a LiDAR system is provided. The dual lens assembly is constructed to reduce a numerical aperture of a returned light pulse and reduce a walk-off error associated with one or more mirrors of the LiDAR system.Type: GrantFiled: January 10, 2023Date of Patent: July 30, 2024Assignee: Seyond, Inc.Inventor: Jim Li
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Patent number: 12033357Abstract: A method comprising receiving, from a first infrared image capture device, three images including gas equipment including a first image captured at a first time period, a second image captured at a second time period, and a third image captured at a third time period, the three images capturing an infrared spectrum, interpreting one of the three images in a red color channel of an RGB image where pixels are red-tonal in coloring, interpreting an other of the three images in a green color channel of the RGB image where pixels are green-tonal in coloring, interpreting a remaining of the three images in a blue color channel of the RGB image where pixels are blue-tonal in coloring, and providing the RGB image for display, the RGB image indicating movement as at least one color that is different from color of at least some of the gas equipment.Type: GrantFiled: December 3, 2021Date of Patent: July 9, 2024Assignee: Plainsight Technologies Inc.Inventors: Logan Spears, Carlos Anchia, Corey Staten, Wei Xu
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Patent number: 12025743Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light. The lidar system also includes a scanner configured to scan at least a portion of the emitted pulses of light along an interlaced scan pattern, including: (i) scanning the portion of the emitted pulses of light substantially parallel to a first scan axis to produce multiple scan lines of the interlaced scan pattern; and (ii) distributing the scan lines along a second scan axis in an interlaced manner, where the interlaced scan pattern is an n-fold interlaced scan pattern that includes n sub-scans, where: n is an integer greater than or equal to 2, each sub-scan includes two or more of the scan lines of the interlaced scan pattern, and the n sub-scans are scanned sequentially where a first sub-scan of the n sub-scans is scanned prior to a second sub-scan.Type: GrantFiled: August 12, 2022Date of Patent: July 2, 2024Assignee: Luminar Technologies, Inc.Inventor: Eric C. Danziger
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Patent number: 12019183Abstract: A LiDAR sensing device may include: a sensing light source unit configured to radiate sensing light; a light transmitting reflector configured to reflect the sensing light radiated from the sensing light source unit; a scanner unit configured to reflect the sensing light reflected from the light transmitting reflector into a target, and to reflect incident light reflected from the target; a light receiving lens configured to pass the incident light reflected from the scanner unit, and integrated with the light transmitting reflector; a light receiving reflector configured to reflect the incident light passing through the light receiving lens; and an optical detecting unit into which the incident light reflected from the light receiving reflector is incident.Type: GrantFiled: July 1, 2019Date of Patent: June 25, 2024Assignee: Hyundai Mobis Co., Ltd.Inventors: Won Gyum Kim, Young Shin Kim, Kyung Rin Kim, Sung Eun Jo