公开(公告)号：US20160092026A1

公开(公告)日：2016-03-31

申请号：US14503015

申请日：2014-09-30

Applicant: Synaptics Incorporated

Inventor： Matthew STEVENSON ,  Shwetank KUMAR ,  Chia-yun KUAN ,  John Michael WEINERTH

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: Techniques for detecting noise with a capacitive sensing device. The includes driving a set of one or more sensor electrodes of a plurality of sensor electrodes with a sensing signal at a first frequency, receiving resulting signals based on the sensing signal for each of the one or more sensor electrodes driven, probing the set of one or more sensor electrodes to obtain a set of probing signals, and summing the probing signals of the set of probing signals to generate a noise-analysis signal.

Abstract translation: 用电容式感测装置检测噪声的技术。 该驱动器包括以一第一频率的感测信号驱动多个传感器电极的一组或多个传感器电极的集合，基于驱动的一个或多个传感器电极中的每一个接收所得到的信号，探测一组 或更多个传感器电极以获得一组探测信号，并且对探测信号组的探测信号进行求和以产生噪声分析信号。