公开(公告)号：US20230045083A1

公开(公告)日：2023-02-09

申请号：US17964691

申请日：2022-10-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai YU ,  Fengguang QU ,  Feng YU ,  Shichuan HE ,  Kewei JIANG

IPC: G01S7/4865 ,  G01S17/14 ,  G01S7/487

Abstract: A time of flight (TOF) measurement method and apparatus are provided, including a controller, a time to digital converter, a pulse transmitter, and a pulse receiver. The controller is configured to control, in a working period according to a predetermined transmit rule, the pulse transmitter to sequentially send M transmit pulses. The pulse receiver is configured to receive N feedback pulses in the working period. The time to digital converter is configured to obtain time of flight information corresponding to the N feedback pulses. The controller is further configured to obtain a target time of flight based on the time of flight information corresponding to the N feedback pulses, and obtain a target distance based on the target time of flight.

公开(公告)号：US20220365221A1

公开(公告)日：2022-11-17

申请号：US17870941

申请日：2022-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongjiang DONG ,  Fan WANG ,  Feng YU ,  Fei GAO ,  Honghai ZHANG ,  Fengguang QU ,  Dengkuan LIU

IPC: G01S17/894 ,  G01S7/4865

Abstract: A TOF sensor module is disclosed. The TOF sensor module includes a light source, a beam adjustment assembly, and a detection assembly. The light source is configured to emit m first beams at each of M moments, and transmit the m first beams to the beam adjustment assembly. The beam adjustment assembly is configured to: after adjusting the received m first beams into S second beams, project the S second beams to S regions of a detection surface, where M projection points that are in a same region of the detection surface and to which projection is performed at the M moments respectively have different locations. The detection assembly is configured to receive S optical echo signals from the detection surface at each of the M moments, and convert the S optical echo signals into S electrical echo signals for storage at each moment.