公开(公告)号：US20240077593A1

公开(公告)日：2024-03-07

申请号：US18071718

申请日：2022-11-30

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Chun CHEN ,  Yi-Chi LEE ,  Chia-Yu HU ,  Ji-Bin HORNG

IPC: G01S7/487 ,  G01S7/48

CPC classification number: G01S7/4876 ,  G01S7/4804

Abstract: An optical radar includes an optical-signal receiving unit and an optical-signal pickup unit. The optical-signal receiving unit is configured to receive a reflected light. The optical-signal pickup unit is coupled to the optical-signal receiving unit and includes a first optical-signal filtering circuit and a second optical-signal filtering unit. The first optical-signal filtering circuit is configured to filter out a first interference pulse of the reflected light, wherein the first interference pulse has a first interference voltage value higher than a reference voltage. The second optical-signal filtering circuit is coupled to the first optical-signal filtering circuit and configured to generate a clock signal comprising a clock pulse; and filter out a second interference pulse that does not match the clock pulse in time point from the reflected light.