公开(公告)号：US20230400946A1

公开(公告)日：2023-12-14

申请号：US18149684

申请日：2023-01-04

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Chen-Yuan Yang ,  Hung-Yen Tai ,  Tzu-Hsuan Liu

IPC: G06F3/041

CPC classification number: G06F3/04182

Abstract: The present application provides a touch sensing circuit, which comprises a plurality of analog front-end circuits, a noise processing circuit, and a compensation circuit. The analog front-end circuits generate a plurality of output signals according to a plurality of sensing signals. The noise processing circuit is coupled to the analog front-end circuits and generates an average noise according to the output signals. The compensation circuit is coupled to the noise processing circuit and compensates the output signals according to the average noise. By applying the touch sensing circuit of the present application, the influence of common-mode noise may be suppressed and the sensitivity of sensing touches may be improved.