公开(公告)号：US09727183B2

公开(公告)日：2017-08-08

申请号：US14477198

申请日：2014-09-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： San Ho Byun ,  Jun Chul Park ,  Ki Duk Kim ,  Yoon Kyung Choi

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A method of operating a touch screen sensor integrated circuit includes: receiving a plurality of current signals through a plurality of pins, wherein each current signal is generated according to mutual capacitance in response to a modulation signal; sensing the current signals and generating a plurality of sensed current signals corresponding to each of the current signals; and generating a plurality of subtracted current signals, wherein each subtracted current signal is generated by performing a subtraction on sensed current signals corresponding to a pair of the pins.