公开(公告)号：US20140253497A1

公开(公告)日：2014-09-11

申请号：US14161827

申请日：2014-01-23

Applicant: PixArt Imaging Inc.

Inventor： FU-CHEN CHEN ,  MING-TSAN KAO ,  YU-HAN CHEN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F1/3262 ,  G06F3/044 ,  Y02D50/20

Abstract: There is provided a capacitive touch device including a controlling and processing circuit and a touch panel. The touch panel has a plurality of detection cells arranged in matrix. The controlling and processing circuit is configured to input a drive signal to the detection cells of the touch panel and read measurement data from the detection cells for post-processing, wherein the controlling and processing circuit reads a first sampling number of the measurement data of the detection cells in a normal mode and a second sampling number of the measurement data of the detection cells in a sleep mode, and the second sampling number is lower than the first sampling number.

Abstract translation: 提供了包括控制和处理电路和触摸面板的电容式触摸装置。 触摸面板具有排列成矩阵状的多个检测单元。 控制和处理电路被配置为向触摸面板的检测单元输入驱动信号，并从用于后处理的检测单元读取测量数据，其中控制和处理电路读取第一取样数量的测量数据 正常模式的检测单元和睡眠模式下的检测单元的测量数据的第二采样数，第二采样数低于第一采样数。