公开(公告)号：US11719817B2

公开(公告)日：2023-08-08

申请号：US16772346

申请日：2017-12-15

申请人： NEC CORPORATION

发明人： Hidemi Noguchi ,  Junichi Abe

IPC分类号： G01S17/32 ,  G01S17/18 ,  G01C3/08

CPC分类号： G01S17/32 ,  G01S17/18 ,  G01C3/08

摘要： A distance-measuring apparatus (2000) generates transmission light by generating a distance measurement signal, and subjecting an optical carrier wave to quadrature modulation on the basis of the generated distance measurement signal. The distance-measuring apparatus (2001) outputs transmission light, and receives reflected light generated by reflecting the transmission light on an object (10) to be measured. The distance-measuring apparatus (2000) compares the received reflected light with reference light to compute a distance from the distance-measuring apparatus (2000) to the object (10) to be measured.

公开(公告)号：US11719791B2

公开(公告)日：2023-08-08

申请号：US17331021

申请日：2021-05-26

申请人： Kabushiki Kaisha Toshiba

发明人： Yutaka Shimizu ,  Shoji Ootaka ,  Ichiro Seto ,  Katsuya Nonin

IPC分类号： G01S7/4912 ,  G01S17/32 ,  G01S13/36 ,  G01S13/84 ,  G01S13/38

CPC分类号： G01S7/4912 ,  G01S13/36 ,  G01S13/84 ,  G01S17/32 ,  G01S13/38

摘要： A distance measuring device includes a calculating section that calculates, based on phase information acquired by a first device and a second device, at least one of which is movable, a distance between the first device and the second device. The first device includes a first transceiver that transmits three or more first carrier signals and receives three or more second carrier signals using an output of a first reference signal source. The second device includes a second transceiver that transmits the three or more second carrier signals and receives the three or more first carrier signals using an output of a second reference signal source. The calculating section calculates the distance based on a phase detection result obtained by reception of the first and second carrier signals and corrects the calculated distance based on information concerning an amplitude ratio of the first carrier signals received by the second transceiver.

公开(公告)号：US20230221444A1

公开(公告)日：2023-07-13

申请号：US18187527

申请日：2023-03-21

申请人： DENSO CORPORATION

发明人： Yuichi TOYOTA ,  Taro BEPPU

IPC分类号： G01S17/931 ,  G01S17/32 ,  G01S7/4913 ,  G01S7/481

CPC分类号： G01S17/931 ,  G01S17/32 ,  G01S7/4913 ,  G01S7/4817

摘要： A LIDAR device performs an emission process of emitting the laser light to surroundings of a vehicle. The emission process includes a scanning process and a resolution adjustment process. The scanning process includes a process of scanning with the laser light a predefined direction that is one of vertical and horizontal directions. A plurality of emission directions include, as four directions, a first direction and a second direction adjacent to each other in the predefined direction, and a third direction and a fourth direction adjacent to each other in the predefined direction. The resolution adjustment process includes a process of making an angle difference between the third and fourth directions less than an angle difference between the first and second directions, and a variably setting process of variably setting the angle difference between the third and fourth directions according to a state variable of the vehicle, as an input.

公开(公告)号：US20230184940A1

公开(公告)日：2023-06-15

申请号：US17924528

申请日：2020-06-22

申请人： NINGBO ABAX SENSING CO., LTD.

发明人： Shuyu LEI

IPC分类号： G01S17/32 ,  G01S7/481 ,  G01S7/4915 ,  H04N25/704

CPC分类号： G01S17/32 ,  G01S7/4816 ,  G01S7/4915 ,  H04N25/704

摘要： A measurement pixel unit, and a measurement apparatus and a measurement method using same. The measurement apparatus comprises a light source that can be operated to emit light so as to illuminate a measured object; a photosensitive module may output an electrical signal by means of a first circuit receiving a first modulation signal and a second circuit receiving a second modulation signal; a processing module may receive different control signals to perform control, and thus may work at different modes in a measurement system; the two circuits can separately output the electrical signal corresponding to the phase delay of one of delay phase reception control signals, thereby achieving the accuracy of measurement information; moreover, the system further can perform reasonable arrangement on phase delay information and exposure duration information in a sub frame at a certain frame rate mode, thereby ensuring the high efficiency of the whole system.

公开(公告)号：US11675063B2

公开(公告)日：2023-06-13

申请号：US17463860

申请日：2021-09-01

申请人： OURS Technology, LLC

发明人： Andrew Steil Michaels ,  Sen Lin

IPC分类号： G01S7/4912 ,  G01S7/4861 ,  G01S17/34 ,  G01S17/931 ,  G01S7/481 ,  G01S7/499 ,  G01S17/32 ,  B60W60/00

CPC分类号： G01S7/4916 ,  G01S7/4817 ,  G01S7/4861 ,  G01S7/499 ,  G01S17/32 ,  G01S17/34 ,  G01S17/931 ,  B60W60/001 ,  B60W2420/52

摘要： A light detection and ranging (LIDAR) system includes a transmitter, a receiving pixel, a rotating mirror, and a beam displacement apparatus. The transmitter is configured to emit a transmit beam. The receiving pixel is configured to receive a returning beam. The rotating mirror is configured to direct the transmit beam to a target and direct the returning beam to the receiving pixel. The beam displacement apparatus is disposed between the receiving pixel and the rotating mirror. The beam displacement apparatus is configured to introduce a displacement to the returning beam to compensate for a spacing between the transmitter and the receiving pixel.

公开(公告)号：US11644576B2

公开(公告)日：2023-05-09

申请号：US17811317

申请日：2022-07-08

申请人： QLM Technology Limited

发明人： Xiao Ai ,  James Titchener ,  Alexander Dunning

IPC分类号： G01C3/08 ,  G01S17/88 ,  G01N21/53 ,  G01N21/39 ,  G01N21/3504 ,  G01S7/497 ,  G01S17/32 ,  G01S7/481 ,  G01S7/493 ,  G01S17/04

CPC分类号： G01S17/88 ,  G01N21/3504 ,  G01N21/39 ,  G01N21/532 ,  G01S7/4817 ,  G01S7/493 ,  G01S7/4972 ,  G01S17/04 ,  G01S17/32

摘要： A lidar system for detection of a gas comprises an optical transceiver for transmitting and receiving optical radiation. A method of operating the system comprises performing spatially scanned sensing measurements of the gas across a system field of view, and analyzing the sensing measurements to determine the presence and location of excess of the gas in the system field of view. Based on the determined location, an adjusted system field of view is determined and spatially scanned sensing measurements of the gas are performed across the adjusted system field of view to obtain sensing measurements at higher spatial resolution.

公开(公告)号：US11635486B2

公开(公告)日：2023-04-25

申请号：US16461654

申请日：2017-11-17

申请人： trinamiX GmbH

发明人： Christian Schildknecht ,  Christoph Lungenschmied ,  Ingmar Bruder ,  Michael Eberspach ,  Peter Fejes ,  Robert Send ,  Sebastian Valouch ,  Thomas Ohmer ,  Wilfried Hermes ,  Stefan Hengen ,  Christian Lennartz

IPC分类号： G01S5/16 ,  G01S7/481 ,  G01S17/36 ,  G01S17/46 ,  G01S11/12 ,  G01J1/04 ,  G01J1/42 ,  G01S7/48 ,  G01S7/493 ,  G01S17/32 ,  G01S17/50 ,  G01S17/66 ,  G01S17/89

摘要： A detector (110) for determining a position of at least one object (112) is proposed. The detector (110) comprises: —at least two optical sensors (118, 120, 176), each optical sensor (118, 120, 176) having a light-sensitive area (122, 124), wherein each light-sensitive area (122, 124) has a geometrical center (182, 184), wherein the geometrical centers (182, 184) of the optical sensors (118, 120, 176) are spaced apart from an optical axis (126) of the detector (110) by different spatial offsets, wherein each optical sensor (118, 120, 176) is configured to generate a sensor signal in response to an illumination of its respective light-sensitive area (122, 124) by a light beam (116) propagating from the object (112) to the detector (110); and—at least one evaluation device (132) being configured for determining at least one longitudinal coordinate z of the object (112) by combining the at least two sensor signals.

公开(公告)号：US20230090917A1

公开(公告)日：2023-03-23

申请号：US17991805

申请日：2022-11-21

申请人： AEVA, INC.

发明人： Krishna Toshniwal ,  Bruno Hexsel ,  Kumar Bhargav Viswanatha ,  Jose Krause Perin

IPC分类号： G06T5/00 ,  G06T5/50 ,  G01S17/58 ,  G01S17/89 ,  G06V10/46 ,  G06V10/44 ,  G01S7/493 ,  G01S17/32 ,  G01S7/4912

摘要： Techniques for cascade filtering of a set of points of interest (POIs) in a light detection and ranging (LiDAR) system is described. The method includes performing a series of cascaded filtering of a set of points of interest (POIs) on a first point cloud. The method includes calculating, for each POI of the set of POIs, at least a first metric for a first set of neighborhood points to make a decision with respect to a subset of the set of POIs for transmission to a second point cloud. The method also includes extracting at least one of range or velocity information based on the second point cloud based on the decision.

公开(公告)号：US11604263B2

公开(公告)日：2023-03-14

申请号：US16830012

申请日：2020-03-25

申请人： INNOVIZ TECHNOLOGIES LTD

发明人： Ronen Eshel ,  Michael Girgel

IPC分类号： G01S7/00 ,  G01S7/481 ,  G01S17/931 ,  G01H1/00 ,  G01S17/10 ,  G01S7/4863 ,  G01S7/4914 ,  G01S17/32 ,  G01S17/58 ,  G01S7/48 ,  G01S7/484 ,  G01S7/4911 ,  G01S17/42 ,  B81B3/00 ,  B60S1/02 ,  G01S7/497 ,  G01S17/06 ,  G01S17/89 ,  G02B26/12

摘要： A MEMS scanning device may include: a movable MEMS mirror configured to pivot about at least one axis; at least one actuator operable to rotate the MEMS mirror about the at least one axis, each actuator out of the at least one actuator operable to bend upon actuation to move the MEMS mirror; and at least one flexible interconnect element coupled between the at least one actuator and the MEMS mirror for transferring a pulling force of the bending of the at least one actuator to the MEMS mirror. Each flexible interconnect element out of the at least one interconnect element may be an elongated structure comprising at least two turns at opposing directions, each turn greater than 120°.

公开(公告)号：US20230049568A1

公开(公告)日：2023-02-16

申请号：US17978649

申请日：2022-11-01

申请人： Aeva, Inc.

发明人： Behsan BEHZADI ,  Mina REZK ,  Kumar Bhargav VISWANATHA ,  Esha JOHN

IPC分类号： G01S17/931 ,  G01S17/06 ,  G01S17/58 ,  G01S7/4915 ,  G01S7/4911 ,  G01S7/481 ,  G01S17/26 ,  G01S17/34 ,  G01S7/4913 ,  G01S7/4865 ,  G01S17/32 ,  G01S17/89

摘要： A light detection and ranging (LIDAR) system has a modulator to modulate a light signal from an optical source with a low-power mode at a section of a sweep signal to generate a pulsed light signal transmitted towards a target. The LIDAR system has a photodetector to receive a return beam from the target with an amplitude modulated (AM) signal portion and a frequency modulated (FM) signal portion. The LIDAR system processes the return beam with in-phase/quadrature (I/Q) detection to extract the AM signal portion and the FM signal portion. The system determines a range value and a velocity value for the target based on the extracted AM signal portion and the extracted FM signal portion.