公开(公告)号：US11703983B2

公开(公告)日：2023-07-18

申请号：US17212319

申请日：2021-03-25

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Tun-Ju Wang ,  Ching-Jen Tung ,  Chi-Huan Lu ,  Chun-Yu Lin ,  Yen-Shao Lin

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/04164 ,  G06F3/04182

Abstract: The application relates to a capacitance sensing circuit, which samples and holds a reference signal to generate an input reference signal, hereby, an input signal is generated to a sensing circuit. Thereby, the sensing circuit generates an output signal according to the input signal and a sensing signal, for the capacitance sensing.