Invention Grant
US08232972B2 Touch position detector of capacitive touch panel and method for detecting the touch position
有权
电容触摸面板的触摸位置检测器和触摸位置检测方法
- Patent Title: Touch position detector of capacitive touch panel and method for detecting the touch position
- Patent Title (中): 电容触摸面板的触摸位置检测器和触摸位置检测方法
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Application No.: US11971788Application Date: 2008-01-09
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Publication No.: US08232972B2Publication Date: 2012-07-31
- Inventor: Chun-Chung Huang , Tsun-Min Wang , Chun-Yu Lin , Tse-Chi Lin
- Applicant: Chun-Chung Huang , Tsun-Min Wang , Chun-Yu Lin , Tse-Chi Lin
- Applicant Address: TW Hsin-Chu
- Assignee: Elan Microelectronics Corporation
- Current Assignee: Elan Microelectronics Corporation
- Current Assignee Address: TW Hsin-Chu
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: TW96128001A 20070731
- Main IPC: G06F3/041
- IPC: G06F3/041
Abstract:
A touch position detector includes a plurality of capacitance sensors, a negative capacitance compensation unit, an analog/digital converter and a micro processing unit. The negative capacitance compensation unit is utilized to compensate the capacitance of the capacitance sensor and get a capacitance change. The micro controller unit is utilized to detect the touch position according to the capacitance change. It is easy to get the touch position by using the touch position detector.
Public/Granted literature
- US20090032312A1 Touch Position Detector of Capacitive Touch Panel and Method for Detecting the Touch Position Public/Granted day:2009-02-05
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