公开(公告)号：US20250035807A1

公开(公告)日：2025-01-30

申请号：US18601103

申请日：2024-03-11

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Wang-An Lin ,  Chih-Yu Lin ,  Chih-Yu Joe Lin

IPC: G01V3/08

Abstract: The present application provides a proximity detection circuit and a proximity detection method with compensation. The proximity detection circuit comprises a detection circuit, a baseline processing circuit and a proximity sensing circuit. The detection circuit generates a detection data and a reference data. The proximity sensing circuit generates a proximity signal according to a proximity threshold, the detection data and a baseline data generated from the baseline processing circuit, and the proximity detection circuit and the proximity detection method compensate the baseline data or the proximity threshold according to the reference data. The condition of misjudgment may be avoided under the influence of environmental factors.