公开(公告)号：US20120092291A1

公开(公告)日：2012-04-19

申请号：US13265364

申请日：2010-01-14

申请人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

发明人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

IPC分类号： G06F3/044 ,  G06F3/045

CPC分类号： G06F3/045 ,  G06F2203/04104

摘要： The present invention relates to a resistive touchscreen for recognizing touch coordinates through a capacitor charging time constant, and more specifically, the invention comprises: an equal resistance line operating means for obtaining the same resistance line according to an (Rv+Ry+) value and the same resistance line according to an (Rv+Ry−) value by using the charge time constant after a charge time constant measuring means measures charge time constants of capacitors CconL and CconR; and a coordinate calculating means for obtaining intersecting points of the resistance lines, thereby perceiving the intersecting points as touch positions. According to the present invention, a conventional ADC (analog to digital converter) is not used because the touch positions can be perceived through the capacitor charging time constants, whereby the invention is advantageous for IC integration.

摘要翻译： 本发明涉及一种用于通过电容充电时间常数识别触摸坐标的电阻式触摸屏，更具体地说，本发明包括：等电阻线操作装置，用于根据（Rv + Ry +）值获得相同的电阻线，并且 在充电时间常数测量装置测量电容器CconL和CconR的充电时间常数之后，通过使用充电时间常数根据（Rv + Ry-）值相同的电阻线; 以及坐标计算装置，用于获得电阻线的相交点，从而将交点作为触摸位置。 根据本发明，由于可以通过电容器充电时间常数感知触摸位置，所以不使用传统的ADC（模数转换器），由此本发明对IC集成是有利的。

公开(公告)号：US08711123B2

公开(公告)日：2014-04-29

申请号：US13265364

申请日：2010-01-14

申请人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

发明人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

IPC分类号： G09G5/00 ,  G06F3/033 ,  G09G5/08 ,  G06F3/041 ,  G06F3/045 ,  G06K11/06 ,  G08C21/00

CPC分类号： G06F3/045 ,  G06F2203/04104

摘要： The present invention relates to a resistive touchscreen for recognizing touch coordinates through a capacitor charging time constant, and more specifically, the invention comprises: an equal resistance line operating means for obtaining the same resistance line according to an (Rv+Ry+) value and the same resistance line according to an (Rv+Ry−) value by using the charge time constant after a charge time constant measuring means measures charge time constants of capacitors CconL and CconR; and a coordinate calculating means for obtaining intersecting points of the resistance lines, thereby perceiving the intersecting points as touch positions. According to the present invention, a conventional ADC (analog to digital converter) is not used because the touch positions can be perceived through the capacitor charging time constants, whereby the invention is advantageous for IC integration.

摘要翻译： 本发明涉及一种用于通过电容充电时间常数识别触摸坐标的电阻式触摸屏，更具体地说，本发明包括：等电阻线操作装置，用于根据（Rv + Ry +）值获得相同的电阻线，并且 在充电时间常数测量装置测量电容器CconL和CconR的充电时间常数之后，通过使用充电时间常数根据（Rv + Ry-）值相同的电阻线; 以及坐标计算装置，用于获得电阻线的相交点，从而将交点作为触摸位置。 根据本发明，由于可以通过电容器充电时间常数感知触摸位置，所以不使用传统的ADC（模数转换器），由此本发明对IC集成是有利的。