公开(公告)号：US20230139155A1

公开(公告)日：2023-05-04

申请号：US18147242

申请日：2022-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai AN ,  Yilun ZHOU ,  Yun DING

IPC: G01S17/89 ,  G01S7/481

Abstract: This disclosure provides an optical receiving apparatus, including a photodetector and a plurality of beam homogenization units. The photodetector includes a plurality of pixels, each pixel includes a plurality of cells, and the cell is configured to convert a received optical signal into an electrical signal. Each beam homogenization unit corresponds to at least one pixel of the photodetector, and is configured to diffuse a received incident light beam to a plurality of cells included in the corresponding at least one pixel. The optical receiving apparatus may be applied in a light detection and ranging system. The apparatus increases dynamic ranges of the detector and the light detection and ranging system, and improves detection efficiency.

公开(公告)号：US20240264286A1

公开(公告)日：2024-08-08

申请号：US18626820

申请日：2024-04-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yilun ZHOU ,  Xianling SHI ,  Guoliang CAO ,  Zhizhen HUANG ,  Anliang YU

IPC: G01S7/4865 ,  G01S7/484 ,  G01S17/10

CPC classification number: G01S7/4866 ,  G01S7/484 ,  G01S17/10

Abstract: Example control methods and apparatuses, example LiDARs, and example terminal devices are provided. One example method includes controlling a transmitter to transmit a first pulse train, where the first pulse train includes M1 first-type pulses and M2 second-type pulses, M1 is an integer greater than 1, and M2 is a positive integer. The transmitter is controlled to transmit a second pulse train, where the second pulse train includes at least one of M3 first-type pulses or Ma second-type pulses, where a power of a first-type pulse is greater than a power of a second-type pulse, and where the second pulse train and the first pulse train have different transmission time periods, or correspond to different sub-emitters, or correspond to different pixels in a detection field of view, or correspond to different detection fields of view, or correspond to different sub-receivers.