公开(公告)号：WO2021130347A1

公开(公告)日：2021-07-01

申请号：PCT/EP2020/087835

申请日：2020-12-23

Applicant: AMS INTERNATIONAL AG

Inventor： NELSON, Doug ,  HEDGE, Pradeep ,  COGAN, Timothy

IPC: G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89

Abstract: A method of measuring a distance using a time of flight sensor comprising a substantially transparent cover covering a light emitter and one or more photodetectors. The method comprises emitting a series of pulses of light from the light emitter; and using the one or more photodetectors to obtain a distribution of times at which at least one photodetector of the one or more photodetectors detected photons after each emission of the series of pulses of light. If the distribution of times comprises only a single peak, the method further comprises analysing the single peak to determine if the single peak includes counts of photons reflected from a target. If the single peak includes counts of photons reflected from a target, the method further comprises measuring the separation between a reference time and a point of the single peak.

公开(公告)号：WO2021116757A1

公开(公告)日：2021-06-17

申请号：PCT/IB2020/001026

申请日：2020-12-09

Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION

Inventor： XIAO, Sa ,  SCHNEIDER, Tom ,  WONG, Ping, Wah

IPC: G01S7/481 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/894

Abstract: An imaging device includes a pixel and a signal processor configured to apply a first set of control signals to the pixel to generate a first pixel signal, a second pixel signal, a third pixel signal, and a fourth pixel signal based on light reflected from an object. The signal processor is configured to apply a second set of control signals to the pixel to generate a fifth pixel signal, a sixth pixel signal, a seventh pixel signal, and an eighth pixel signal based on the light reflected from the object. The signal processor is configured to calculate a distance to the object based on comparisons between selected ones of the first, second, third, fourth, fifth, sixth, seventh, and eighth pixel signals.

公开(公告)号：WO2021108184A1

公开(公告)日：2021-06-03

申请号：PCT/US2020/061035

申请日：2020-11-18

Applicant: WAYMO LLC

Inventor： DROZ, Pierre-Yves ,  GUTNIK, Vadim

IPC: G01S7/4863 ,  G01S17/931 ,  H02M3/07 ,  H03M1/12

Abstract: An example circuit includes a light detector and a biasing capacitor having (i) a first terminal that applies to the light detector an output voltage that can either bias or debias the light detector and (ii) a second terminal for controlling the output voltage. The circuit includes a first transistor connected to the second terminal of the biasing capacitor and configured to drive the output voltage to a first voltage level above a biasing threshold of the light detector and thereby biasing the light detector. The circuit includes a second transistor connected to the second terminal of the biasing capacitor and configured to drive the output voltage to a second voltage level below the biasing threshold of the light detector and thereby debiasing the light detector. The second voltage is a non -zero voltage that corresponds to a charge level of the biasing capacitor.

公开(公告)号：WO2021058494A1

公开(公告)日：2021-04-01

申请号：PCT/EP2020/076455

申请日：2020-09-23

Applicant: XENOMATIX NV

Inventor： PAESEN, Rik ,  VAN DYCK, Dirk ,  VANDEWIELE, Stijn ,  VAN DEN BROECK, Nick

IPC: G01S7/4865 ,  G01S7/4863 ,  G01S17/42 ,  G01S17/18 ,  G01S17/931

Abstract: The present disclosure relates to a method and device for determining distances to a scene. The method comprises steps of determining a laser light pulse width PW that is smaller a maximum time of flight TOFmax corresponding to a maximum distance Dmax by using a pulse width reduction factor N such that PW = (TOFmax – TDL) /N wherein TDL is a predefined delay window, determining a pulse frequency FP such that FP ≤ 1/((N+1) x PW + TDL), illuminating the scene with an illuminating pattern comprising a plurality of spatially separated pulsed laser beams having the determined pulse width and frequency, performing the detection as function of time during a detection time period TD divided in M = α x (N+1) consecutive detection time windows, with α ≥ 1, such that TD = M x (PW/α), identifying in what detection time windows reflected laser light is detected and calculating a distance to the scene based on this identification.

公开(公告)号：WO2021052859A1

公开(公告)日：2021-03-25

申请号：PCT/EP2020/075345

申请日：2020-09-10

Applicant: ROBERT BOSCH GMBH

Inventor： ANTE, Frederik ,  FRITZ, Steffen

IPC: G01S7/481 ,  G01S7/4863

Abstract: Die vorliegende Erfindung betrifft eine Sensorvorrichtung (1) für ein LiDAR- System, umfassend einen Sensorarray (2), welcher eine Vielzahl von optischen Sensoreinheiten (3a, 3b, 3c, 3d) umfasst, die auf einer Sensoroberfläche nebeneinander angeordnet sind, um bei einem Betrieb des LiDAR-Systems jeweils einen Bildpunkt zu erfassen, wobei jede der Sensoreinheiten (3a, 3b, 3c, 3d) einen ersten optischen Sensor (4) und einen zweiten optischen Sensor (5) umfasst, wobei der erste optischen Sensor (4) eine erste aktive Sensoroberfläche (6) umfasst, welche ein empfangenes optisches Signal in ein erstes Messsignal umsetzt, und wobei der zweite optischen Sensor (5), welcher eine zweite aktive Sensoroberfläche (7) umfasst, welche ein empfangenes optisches Signal in ein zweites Messsignal umsetzt, wobei die erste aktive Sensoroberfläche (6) eine größere Fläche ist als die zweite aktive Sensoroberfläche (7).

公开(公告)号：WO2021032831A1

公开(公告)日：2021-02-25

申请号：PCT/EP2020/073318

申请日：2020-08-20

Applicant: LUMILEDS HOLDING B.V.

Inventor： VAN DER SIJDE, Arjen, Gerben ,  FANCSALI, Erno ,  PFEFFER, Nicola, Bettina ,  VAN VOORST-VADER, Quint

IPC: G01S7/481 ,  G01S7/484 ,  G01S7/4863 ,  G01S7/4911 ,  G01S7/4914 ,  G01S17/89 ,  G01S17/894 ,  G01S7/486 ,  G01S7/4912

Abstract: The invention describes an infrared imaging assembly (1) for capturing an infrared image (M0, M1) of a scene (S), comprising an infrared-sensitive image sensor (14); an irradiator (10) comprising an array of individually addressable infrared-emitting LEDs, wherein each infrared-emitting LED is arranged to illuminate a scene region (S1,..., S9); a driver (11) configured to actuate the infrared irradiator (10) by applying a switching pulse train (T1,..., T9) to each infrared-emitting LED; an image analysis module (13) configured to analyse a preliminary infrared image (M0) to determine the required exposure levels (130) for each of a plurality of image regions (R1,..., R9); and a pulse train adjusting unit (12) configured to adjust the duration (L1,..., L9) of a switching pulse train (T1,..., T9) according to the required exposure levels (130). The invention also described a method of generating a depth map (D) for a scene (S); a depth map generator comprising an embodiment of the inventive infrared imaging assembly (1); and a camera comprising such a depth map generator (2).

公开(公告)号：WO2020251891A1

公开(公告)日：2020-12-17

申请号：PCT/US2020/036634

申请日：2020-06-08

Applicant: OPSYS TECH LTD.

Inventor： FABINY, Larry ,  DONOVAN, Mark J.

IPC: G01S7/4863 ,  G01S7/481 ,  G01S17/894 ,  G02B26/10 ,  G01S7/4865

Abstract: A solid-state LIDAR system includes a plurality of lasers, each generating an optical beam having a FOV when energized. A plurality of detectors is positioned in an optical path of the optical beams generated by the plurality of lasers. A FOV of at least one of the plurality of optical beams generated by the plurality of lasers overlaps a FOV of at least two of the plurality of detectors. A controller is configured to generate bias signals at a plurality of laser control outputs that energize a selected group of the plurality of lasers in a predetermined time sequence and is configured to detect a predetermined sequence of detector signals generated by the plurality of detectors.

公开(公告)号：WO2020245655A1

公开(公告)日：2020-12-10

申请号：PCT/IB2020/000442

申请日：2020-06-05

Applicant: INNOVIZ TECHNOLOGIES LTD. ,  STEINBERG, Amit ,  ESHEL, Ronen ,  ALPERN, Yair ,  GOREN, Nir Avraham

Inventor： STEINBERG, Amit ,  ESHEL, Ronen ,  ALPERN, Yair ,  GOREN, Nir Avraham

IPC: G01S17/894 ,  G01S7/4861 ,  G01S7/4863 ,  G01S17/931 ,  G01S7/481

Abstract: A time-of-flight (TOF) optical sensor may include a controller, a sensing array, and a readout unit. The sensing array may include a plurality of sensing cells. The readout unit may include a plurality of readout TOF modules. The number of the plurality of readout TOF modules may be less than the number of the plurality of sensing cells. The controller may be configured to trigger a connection of a first sensing cell of the plurality of sensing cells to a first readout TOF module of the plurality of readout TOF modules at a first time during a sampling period, thereby enabling the first readout TOF module to provide a first measurement of a change in output of the first sensing cell.

公开(公告)号：WO2020234648A1

公开(公告)日：2020-11-26

申请号：PCT/IB2020/000398

申请日：2020-05-21

Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION

Inventor： BRADY, Frederick ,  BASAVALINGAPPA, Adarsh ,  SUWA, Taisuke ,  TIMMERMANS, Michiel ,  HWANG, Sungin

IPC: G01S7/4863 ,  H01L27/146 ,  H04N5/374 ,  G01S17/10

Abstract: A pixel array includes a plurality of pixels. Each pixel includes a photoelectric conversion region that converts incident light into electric charge, and a charge transfer section coupled to the photoelectric conversion region and having line symmetry along a first axis in a plan view. The charge transfer section includes a first transfer transistor coupled to a first floating diffusion and the photoelectric conversion region and located at a first side of the photoelectric conversion region, and a second transfer transistor coupled to a second floating diffusion and the photoelectric conversion region and located at the first side of the photoelectric conversion region.

公开(公告)号：WO2020190920A1

公开(公告)日：2020-09-24

申请号：PCT/US2020/023109

申请日：2020-03-17

Applicant: SENSE PHOTONICS, INC.

Inventor： MCGUIRE, Kristopher

IPC: G01S7/481 ,  G01S7/4863 ,  G01J1/44

Abstract: A LIDAR system includes a detector array comprising a first detector region and a second detector region, wherein the first detector region comprises a first detector and the second detector region comprises a second detector, at least one optical element configured to separate light received at the at least one optical element into a first portion and a second portion, incident on the first detector and the second detector, respectively, wherein the at least one optical element is configured to alter a characteristic of the light, and a circuit configured to receive a first detection signal from the first detector responsive to the first portion of the light that is incident thereon and a second detection signal from the second detector responsive to the second portion of the light that is incident thereon, and to generate an improved signal based on the first and second detection signals.