公开(公告)号：US20240310496A1

公开(公告)日：2024-09-19

申请号：US18426328

申请日：2024-01-29

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Changsheng GONG ,  Jiaxin Wang

IPC: G01S7/487 ,  G01S7/4861 ,  G01S17/931

CPC classification number: G01S7/487 ,  G01S7/4861 ,  G01S17/931

Abstract: The present application relates to a circuit, a method, and a radar for detecting ambient light. The circuit comprises: a photosensitive element, which is configured to convert a received light signal into a current signal; an electrical signal conditioning circuit, coupled to the photosensitive element, which is configured to convert the current signal into a voltage signal; a demodulation processing unit, coupled to the electrical signal conditioning circuit, which is configured to convert the voltage signal into a digital signal based on a voltage threshold; and a digital processing unit, coupled to the demodulation processing unit, which is configured to process the digital signal to obtain ambient light information.