公开(公告)号：US20130141368A1

公开(公告)日：2013-06-06

申请号：US13686929

申请日：2012-11-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shun-Li Wang ,  Chun-Chieh Chang

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/044

Abstract: A multi-touch positioning method for a touch control device is disclosed. The touch control device includes a plurality of sensing channels, and each of the plurality of sensing channels is interlaced by a first sensing electrode and a second sensing electrode. The multi-touch positioning method includes retrieving a first touch sensing value and a second touch sensing value respectively corresponding to the first sensing electrode and the second sensing electrode, adding the first touch sensing value and the second touch sensing value to generate a sensing sum value, determining a touch sensing channel having a local maximum value according to the plurality of sensing sum values of the plurality of sensing channels, so as to define a touch point on the touch sensing channel, and calculating a coordinate of the touch point according to the touch sensing channel and its neighboring sensing channels.

Abstract translation: 公开了一种用于触摸控制装置的多点触摸定位方法。 触摸控制装置包括多个感测通道，并且多个感测通道中的每一个由第一感测电极和第二感测电极隔行扫描。 多点触摸定位方法包括检索分别对应于第一感测电极和第二感测电极的第一触摸感测值和第二触摸感测值，添加第一触摸感测值和第二触摸感测值以产生感测和值 根据所述多个感测通道的所述多个感测和值确定具有局部最大值的触摸感测通道，以便在所述触摸感测通道上限定触摸点，以及根据所述触摸感测通道的坐标来计算所述触摸点的坐标 触摸感应通道及其相邻感应通道。

公开(公告)号：US20130127756A1

公开(公告)日：2013-05-23

申请号：US13682701

申请日：2012-11-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shun-Li Wang ,  Chun-Chieh Chang ,  Chih-Chang Lai

IPC: G06F3/0488

CPC classification number: G06F3/0488 ,  G06F3/0418 ,  G06F3/044

Abstract: The present invention discloses a noise filtering method for a touch control display device. The noise filter method includes retrieving a plurality of touch signals, wherein the plurality of touch signals correspond to a plurality of touch points of the touch control display device, selecting a plurality of environmental sensing signals from the plurality of the touch signals according to a touch threshold value, calculating a peak-to-peak value of the plurality of the environmental sensing signals, comparing the peak-to-peak value with a noise threshold value to generate a comparison result, and determining a filtering coefficient according to the comparison result in order to perform a noise filtering procedure accordingly.

Abstract translation: 本发明公开了一种用于触摸控制显示装置的噪声滤波方法。 噪声滤波方法包括检索多个触摸信号，其中多个触摸信号对应于触摸控制显示装置的多个触摸点，根据触摸从多个触摸信号中选择多个环境感测信号 计算多个环境感测信号的峰 - 峰值，将峰 - 峰值与噪声阈值进行比较，生成比较结果，根据比较结果确定滤波系数 相应地执行噪声滤波程序。