公开(公告)号：US20250012904A1

公开(公告)日：2025-01-09

申请号：US18759999

申请日：2024-06-30

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Huazhou CHEN

IPC: G01S7/487 ,  G01S7/481 ,  G01S7/484 ,  G01S17/931

Abstract: This application pertains to the field of radar technology and provides a radar control method, device, terminal equipment, and computer-readable storage medium. The radar control method includes: determining a target receiving channel; adjusting an emitting channel grouping according to the target receiving channel, where the emitting channel corresponding to the target receiving channel and the emitting channel corresponding to the non-target receiving channel are in different emitting channel groupings; and controlling the emitting channels to re-emit the detection signals according to the adjusted emitting channel grouping.

公开(公告)号：US12181611B2

公开(公告)日：2024-12-31

申请号：US17441132

申请日：2020-03-18

Applicant: ams International AG

Inventor： Thomas Jessenig ,  Robert Kappel ,  Manfred Lueger ,  Christian Mautner

IPC: G01S7/487 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/894

Abstract: 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.

公开(公告)号：US12181584B2

公开(公告)日：2024-12-31

申请号：US17148691

申请日：2021-01-14

Applicant: Argo AI, LLC

Inventor： Hsin Miao ,  Willibald Brems ,  Dikpal Reddy

IPC: G01S17/931 ,  G01S7/48 ,  G01S7/487

Abstract: Systems and methods for generating operating an autonomous vehicle. The methods comprise: obtaining LiDAR point cloud data generated by a LiDAR system of the autonomous vehicle; inspecting the LiDAR point cloud data to infer a health of LiDAR beams; identifying bad quality point cloud data based on the inferred health of the LiDAR beams; removing the bad quality point cloud data from the LiDAR point cloud data to generate modified LiDAR point cloud data; and causing the autonomous vehicle to perform at least one autonomous driving operation or mode change based on the modified LiDAR point cloud data.

公开(公告)号：US12169254B2

公开(公告)日：2024-12-17

申请号：US18675797

申请日：2024-05-28

Applicant: Hesai Technology Co., Ltd.

Inventor： Xuezhou Zhu ,  Shaoqing Xiang

IPC: G01S7/48 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/10

Abstract: 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.

公开(公告)号：US12169253B2

公开(公告)日：2024-12-17

申请号：US18235877

申请日：2023-08-20

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Shen Jiang

IPC: G01S7/48 ,  G01S7/4861 ,  G01S7/487 ,  G01S7/489 ,  G01S17/10

Abstract: The present application provides a lidar receiving apparatus, a lidar system, a laser ranging method, a laser ranging controller, and a computer readable storage medium. The lidar receiving apparatus includes: a photodetector, which is configured to receive a reflected laser signal and to convert the reflected laser signal into a current signal when a bias voltage of the photodetector is greater than a breakdown voltage of the same; a ranging circuit, which is connected with the photodetector and configured to calculate distance data according to the current signal; and a power control circuit, which is connected with the photodetector and configured to control the bias voltage applied to the photodetector according to a predefined rule.

公开(公告)号：US20240410997A1

公开(公告)日：2024-12-12

申请号：US18701996

申请日：2021-11-05

Applicant: NEC Corporation

Inventor： Hidemi NOGUCHI

IPC: G01S7/487 ,  G01S7/4865 ,  G01S17/26

Abstract: Provided is a distance-measurement apparatus capable of preventing incorrect distance measurement. A generation unit generates a plurality of transmission pulses having frequency offsets different from each other. A transmission unit repeatedly transmits the transmission pulses generated by the generation unit. The reception unit receives reflected pulses of the respective transmission pulses reflected on a distance-measurement-target object. A detection unit detects frequency offsets of the reflected pulses received by the reception unit. A distance calculation unit calculates a distance to the distance-measurement-target object based on receiving timings of the reflected pulses received by the reception unit and transmitting timings of the transmission pulses corresponding to the frequency offsets detected from the reflected pulses. An invalidation processing unit performs processing of invalidating distance calculation processing for a certain period based on the transmitting timings of the transmission pulses.

公开(公告)号：US12105188B2

公开(公告)日：2024-10-01

申请号：US17484462

申请日：2021-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengfei Luo ,  Tong Jiang

IPC: G01S13/86 ,  G01S7/292 ,  G01S7/40 ,  G01S7/487 ,  G01S13/931 ,  G01S17/931

CPC classification number: G01S13/865 ,  G01S7/292 ,  G01S7/40 ,  G01S7/487 ,  G01S13/931 ,  G01S17/931

Abstract: A radar power control method and an apparatus are provided. The method includes: emitting a first detection signal at a target emission angle; obtaining a reflectivity of a first detection point of the first detection signal if signal power of an echo signal of the first detection signal is less than a preset power threshold, where the first detection point is a point on a surface of a detected object in a direction of the target emission angle; and increasing emission power corresponding to the target emission angle if the reflectivity of the first detection point is greater than a preset first threshold. The solution helps consider both power consumption and a detection distance of a radar.

公开(公告)号：US20240264313A1

公开(公告)日：2024-08-08

申请号：US18624247

申请日：2024-04-02

Applicant: INNOVIZ TECHNOLOGIES LTD.

Inventor： Ronen ESHEL ,  Nir GOREN

IPC: G01S17/931 ,  G01S7/481 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/42 ,  G01S17/894

CPC classification number: G01S17/931 ,  G01S7/4812 ,  G01S7/4814 ,  G01S7/4815 ,  G01S7/4817 ,  G01S7/4865 ,  G01S7/4873 ,  G01S17/42 ,  G01S17/894

Abstract: A LIDAR system may include a laser emission unit configured to generate a plurality of laser beams. The LIDAR system may also include an optical system configured to transmit the plurality of laser beams from the laser emission unit to a scanning unit. The scanning unit may be configured to project the plurality of laser beams toward a field of view of the LIDAR system to simultaneously scan the field of view along a plurality of scan lines traversing the field of view.

公开(公告)号：US20240255629A1

公开(公告)日：2024-08-01

申请号：US18607992

申请日：2024-03-18

Applicant: HESAI TECHNOLOGY CO., LTD.

Inventor： Qingguo YU ,  Lei WANG ,  Xin ZHAO ,  Shaoqing XIANG

IPC: G01S7/497 ,  G01S7/487

CPC classification number: G01S7/497 ,  G01S7/4873 ,  G01S2007/4975

Abstract: Systems, devices, and methods for light cover stain detection for LiDARs are provided. In one aspect, a method for stain detection on a light cover of a LiDAR includes: transmitting a laser pulse to the light cover of the LiDAR, receiving a stray light pulse generated by the laser pulse incident on the light cover of the LiDAR, and determining, based on a characteristic of the stray light pulse, whether a stain is on the light cover of the LiDAR.

公开(公告)号：US20240248182A1

公开(公告)日：2024-07-25

申请号：US18532875

申请日：2023-12-07

Applicant: SK hynix Inc. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Min Hyuk KIM ,  Daniel S. Jeon

IPC: G01S7/487 ,  G01S7/4865 ,  G01S17/894

CPC classification number: G01S7/487 ,  G01S7/4866 ,  G01S17/894

Abstract: Detecting a multi-path interference component in a time-of-flight (ToF) camera may be performed by generating a confidence map in which a distortion area attributable to a multi-path interference component included in a reflection modulation signals is specified, where the reflection modulation signals is generated when two modulation signals emitted from a light source to a subject return to the ToF camera after being reflected by the subject. Correcting the multi-path interference component corrects distortion attributable to a multi-path interference component, which may include correcting only the distortion area specified in the confidence map. Detecting the multi-path interference component in a ToF camera includes collecting the reflection modulation signal at a plurality of different times, calculating amplitudes and offsets of the collected reflection modulation signals, determining whether a multi-path interference component is included in the reflection modulation signal, and generating the confidence map.