发明名称 |
DETECTION OF AND COMPENSATION FOR STRAY CAPACITANCE IN CAPACITIVE TOUCH SENSORS |
摘要 |
The present invention provides systems and methods for detecting stray capacitance in capacitive touch sensors. The existence of stray capacitance can lead to errors in touch detection and touch position determination. Such errors can be avoided or corrected when the stray capacitance is detected. Detecting stray capacitance includes analyzing signals for features characteristic of stray capacitance noise events. Such features can include spatial features such as the location of a test touch position determined from signals caused by stray capacitance, as well as temporal features such as the rate of change of the detected signals. |
申请公布号 |
KR20080011219(A) |
申请公布日期 |
2008.01.31 |
申请号 |
KR20077027828 |
申请日期 |
2006.05.26 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
PETERSON RICHARD A. JR.;BULAT BULENT;LESSARD BRUCE A.;TAYLOR GORDON F. |
分类号 |
G06F3/044 |
主分类号 |
G06F3/044 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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