Invention Grant
US08194046B2 Method and system for measuring position on surface capacitance touch panel using a flying capacitor
失效
使用飞行电容器测量表面电容触摸面板上的位置的方法和系统
- Patent Title: Method and system for measuring position on surface capacitance touch panel using a flying capacitor
- Patent Title (中): 使用飞行电容器测量表面电容触摸面板上的位置的方法和系统
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Application No.: US12592283Application Date: 2009-11-20
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Publication No.: US08194046B2Publication Date: 2012-06-05
- Inventor: Jared G. Bytheway , Keith L. Paulsen
- Applicant: Jared G. Bytheway , Keith L. Paulsen
- Applicant Address: US UT Salt Lake City
- Assignee: Cirque Corporation
- Current Assignee: Cirque Corporation
- Current Assignee Address: US UT Salt Lake City
- Agency: Morriss O'Bryant Compagni, P.C.
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/045
Abstract:
A touch panel having a substantially even coating of a conductive material on a non-conductive substrate and then covering the conductive material with a dielectric material, wherein a novel current measuring circuit reduces the effect of stray capacitance on the accuracy of a current measurement so that the relative X and Y position of an object on the touch panel can be determined using simple ratio equations.
Public/Granted literature
- US20110063242A1 Method and system for measuring position on surface capacitance touch panel using a flying capacitor Public/Granted day:2011-03-17
Information query
