公开(公告)号：US20230026858A1

公开(公告)日：2023-01-26

申请号：US17955261

申请日：2022-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenxiong WEI ,  Fan WANG ,  Feng YU ,  Kai YU ,  Chen QIU

IPC: H04N5/225 ,  G02B27/10 ,  G02B26/08 ,  G02B26/10

Abstract: An optical transmitting apparatus is disclosed, in the apparatus, an array light source include M*N light sources, and an included angle between any column of light sources in the N columns of light sources and any row of light sources in the M rows of light sources is a preset angle. The array light source is located on a first side of a collimating lens, a plane on which the array light source is located is perpendicular to an optical axis of the collimating lens, and a distance between the plane on which the array light source is located and a center point of the collimating lens is a focal length of the collimating lens. An rotatable scanning mirror is located on a second side of the collimating lens, and a center point of a reflective surface of the scanning mirror is on the optical axis of the collimating lens.

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.