公开(公告)号：US11920916B1

公开(公告)日：2024-03-05

申请号：US17569480

申请日：2022-01-05

申请人： Meta Platforms Technologies, LLC

发明人： Michael Hall ,  Xinqiao Liu

IPC分类号： G01C3/08 ,  G01B11/22 ,  G01S7/4865 ,  H04N13/271

CPC分类号： G01B11/22 ,  G01S7/4865 ,  H04N13/271

摘要： A depth camera assembly (DCA) includes a light generator emitting a beam of light into a local area and a detector. The detector captures light from the beam reflected by objects in the local area to a portion of an array of pixels that each include a single photon avalanche diode (SPAD). The location of the portion of the array is based in part on the angle of the beam emitted from the projector. The DCA identifies a set of pixels of the array corresponding to the portion and selectively retrieves current generated from the reflected light by the pixels in the portion of the array without retrieving current generated by pixels in other portions of the array.

公开(公告)号：US20240069197A1

公开(公告)日：2024-02-29

申请号：US17900864

申请日：2022-08-31

申请人： Compertum Microsystems Inc.

发明人： Francis Piu MAN

IPC分类号： G01S17/10 ,  G01S7/481 ,  G01S7/4865

CPC分类号： G01S17/10 ,  G01S7/4815 ,  G01S7/4816 ,  G01S7/4817 ,  G01S7/4865

摘要： A scanning flash light detection and ranging apparatus includes a light transmitter, a beam steering unit configured to steer pulse light and the reflected pulse light, and a light receiver configured to capture the reflected pulse light. The light transmitter includes a plurality of light sources. Each of the plurality of light sources is configured to emit the pulse light. The pulse light is non-visible. The reflected pulse light represents the pulse light reflected by at least one object. The pulse light incident on the beam steering unit and the reflected pulse light deflected by the beam steering unit are parallel or coaxial. Alternatively, the pulse light deflected by the beam steering unit and the reflected pulse light incident on the beam steering unit are parallel or coaxial. The light receiver is a Geiger mode avalanche photodiode receiver including a plurality of light detectors.

公开(公告)号：US20240053474A1

公开(公告)日：2024-02-15

申请号：US18230826

申请日：2023-08-07

申请人： Johnson Level & Tool Mfg. Co., Inc.

发明人： Timothy J. Wojciechowski

IPC分类号： G01S17/26 ,  G01S7/484 ,  G01S7/481 ,  G01C15/00 ,  G01S7/4865

CPC分类号： G01S17/26 ,  G01S7/484 ,  G01S7/4813 ,  G01C15/002 ,  G01S7/4865

摘要： A distance measuring system with a rotary laser generator and a laser detector. The rotary laser generator may rotate 360 degrees along a desired plane while emitting a rotating laser. The laser detector may be capable of detecting the rotating laser allowing the laser detector to be positioned along the same plane. Each detection of the rotating laser by the laser detector constitutes a pulse and the distance between the rotary laser generator and the laser detector may be calculated by the time measured between pulses. Additionally, the laser detector incorporates distance measuring technology providing the laser detector the capability to measure distances to surrounding objects. The laser detector also includes the ability to rotate so the laser detector may alternate from measuring the distance to a reference wall to the distance to the ground.

公开(公告)号：US11899138B2

公开(公告)日：2024-02-13

申请号：US16680893

申请日：2019-11-12

申请人： HYUNDAI MOBIS CO., LTD.

发明人： Chang-Uk Jung

IPC分类号： G01S7/48 ,  G01S7/4865 ,  G01S7/481

CPC分类号： G01S7/4865 ,  G01S7/4808 ,  G01S7/4815 ,  G01S7/4816

摘要： A light detection and ranging (LIDAR) signal processing apparatus capable of accurately measuring a distance to an object using an optical means may include: a flight length deriving unit to calculate a flight length of a first laser light emitted from a sensor toward a road with an inclination, a vertical inclination measurement unit to estimate a vertical inclination of the vehicle with respect to the road based on the flight length, a horizontal inclination measurement unit to estimate a horizontal inclination of the vehicle with respect to the road based on the flight length, a reliability determination unit to determine reliability of information detected by the sensor based on the vertical inclination and the horizontal inclination of the vehicle, and a data processing unit to process the detected information when the detected information is reliable.

公开(公告)号：US11894851B2

公开(公告)日：2024-02-06

申请号：US16479004

申请日：2018-10-25

申请人： Sony Semiconductor Solutions Corporation

发明人： Yohtaro Yasu ,  Takashi Kobayashi ,  Nobuhiko Shigyo

IPC分类号： H03K5/131 ,  G01S17/89 ,  G01S17/894 ,  G01S7/4865 ,  G01S17/10 ,  H03K5/04 ,  G01S17/931 ,  H03K5/00 ,  H04N23/50

CPC分类号： H03K5/131 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/89 ,  G01S17/894 ,  H03K5/04 ,  G01S17/931 ,  H03K2005/00058 ,  H04N23/555

摘要： A signal generation apparatus is used in a ToF camera system especially adopting the indirect system and suppresses occurrence of a cyclic error. The signal generation apparatus includes a first pulse generator configured to generate a pulse to be supplied to a light source that irradiates light upon a distance measurement target, a second pulse generator configured to generate a pulse to be supplied to a pixel that receives the light reflected by the distance measurement target, and a signal selection section configured to select and output a duty cycle of a signal to be outputted from the first pulse generator from between a first duty cycle and a second duty cycle different from the first duty cycle.

公开(公告)号：US11892568B2

公开(公告)日：2024-02-06

申请号：US17074238

申请日：2020-10-19

申请人： STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED ,  STMicroelectronics (Grenoble 2) SAS

发明人： Ivelina Hristova ,  Pascal Mellot ,  Neale Dutton

IPC分类号： G06T7/50 ,  G06F1/10 ,  G06T15/08 ,  G06T15/00 ,  G01S7/4865 ,  G01S17/894 ,  G01S7/4863

CPC分类号： G01S7/4865 ,  G01S7/4863 ,  G01S17/894 ,  G06F1/10 ,  G06T7/50 ,  G06T15/005 ,  G06T15/08 ,  G06T2207/10108

摘要： A depth map sensor includes a first array of first pixels, each first pixel having a first photodetector associated with a pixel circuit that comprises a plurality of first bins for accumulating events. A clock source is configured to generate a plurality of phase-shifted clock signals. A first circuit has a plurality of first output lines coupled to the first array of first pixels. The first circuit is configured to receive the plurality of phase-shifted clock signals. The first circuit includes a first block and a second block. The first block is configured to propagate the plurality of phase-shifted clock signals to the second block during a first period determined by a first enable signal and the second block configured to select to which of the plurality of first output lines each of the plurality of phase-shifted clock signals is applied.

公开(公告)号：US20240031549A1

公开(公告)日：2024-01-25

申请号：US18174178

申请日：2023-02-24

申请人： nLIGHT, Inc.

发明人： Paul S. BANKS

IPC分类号： H04N13/254 ,  H04N13/204 ,  H04N13/207 ,  H04N13/296 ,  G01S7/481 ,  G01S17/10 ,  G01S7/484 ,  G01S7/486 ,  G01S7/4865 ,  G01S17/894 ,  G01S17/89

CPC分类号： H04N13/254 ,  H04N13/204 ,  H04N13/207 ,  H04N13/296 ,  G01S7/4816 ,  G01S17/10 ,  G01S7/484 ,  G01S7/486 ,  G01S7/4865 ,  G01S17/894 ,  G01S17/89

摘要： Systems and methods for three-dimensional imaging are disclosed. A three-dimensional imaging system may include a light source to emit a light pulse. The divergence of the light pulse may be configurable by the system. For example, the system may also include a receiving lens having a field of view and configured to receive a portion of the light pulse reflected or scattered by a scene. The system may configure the light source so that the divergence of the light pulse matches or approximates the field of view of the receiving lens.

公开(公告)号：US20240030674A1

公开(公告)日：2024-01-25

申请号：US17871230

申请日：2022-07-22

申请人： Luminar, LLC

发明人： Alex M. Sincore

IPC分类号： H01S3/10 ,  H01S3/0941 ,  H01S3/094 ,  G01S7/481 ,  G01S7/4865 ,  G01S7/484 ,  H01S3/091

CPC分类号： H01S3/1001 ,  H01S3/09415 ,  H01S3/094096 ,  H01S3/094076 ,  G01S7/4814 ,  G01S7/4865 ,  G01S7/484 ,  H01S3/0912 ,  G02B26/101

摘要： A system comprises a wavelength-tunable light source and a controller. The controller is configured to cause attenuation of a light being generated by the wavelength-tunable light source during a transition period between a first wavelength to a second wavelength, cause the wavelength-tunable light source to change a wavelength of the light being generated by the wavelength-tunable light source from the first wavelength to the second wavelength, and allow a pulse of the light associated with the second wavelength to be emitted during a pulse period after the transition period.

公开(公告)号：US20240019556A1

公开(公告)日：2024-01-18

申请号：US18477692

申请日：2023-09-29

申请人： HESAI TECHNOLOGY CO., LTD.

发明人： Jin YANG ,  Shuaiqi XU ,  Hongyan ZHANG ,  Shaoqing XIANG

IPC分类号： G01S7/4865 ,  G01S17/894

CPC分类号： G01S7/4865 ,  G01S17/894

摘要： A storage method for detection data of a lidar, a data processing method for a lidar, a lidar, and a computer-readable storage medium are provided. The storage method includes: S101: receiving a detection data, the detection data including time information and intensity information corresponding to the time information; and S102: storing the intensity information with a first time precision based on a weight of the time information. The first time precision is a time interval between any two adjacent first time scales, and is n times the time resolution of the detection data of the lidar, and n>1. The weight is associated with a time interval between the time information and at least one first time scale. The storage method can maintain a ranging precision while reducing a storage space.

公开(公告)号：US20240019370A1

公开(公告)日：2024-01-18

申请号：US18330295

申请日：2023-06-06

申请人： Quantum-Si Incorporated

发明人： Jonathan M. Rothberg ,  Keith G. Fife ,  David M. Boisvert

IPC分类号： G01N21/64 ,  H01L27/146 ,  C12Q1/6869 ,  H01L27/148 ,  G01S7/4865 ,  H04N25/77

CPC分类号： G01N21/6428 ,  G01N21/6408 ,  H01L27/14687 ,  C12Q1/6869 ,  H01L27/14603 ,  H01L27/14812 ,  G01S7/4865 ,  H01L27/14612 ,  H01L27/14689 ,  G01N21/64 ,  H01L27/14643 ,  H04N25/77 ,  G01N21/6458

摘要： An integrated circuit includes a photodetection region configured to receive incident photons. The photodetection region is configured to produce a plurality of charge carriers in response to the incident photons. The integrated circuit includes at least one charge carrier storage region. The integrated circuit also includes a charge carrier segregation structure configured to selectively direct charge carriers of the plurality of charge carriers directly into the at least one charge carrier storage region based upon times at which the charge carriers are produced.