发明名称 |
ELECTRONIC DEVICE AND METHOD FOR DETERMINING A TOUCH INPUT APPLIED TO A CAPACITIVE TOUCH PANEL SYSTEM INCORPORATED THEREIN |
摘要 |
An electronic device is operable to determine a touch input applied to a capacitive touch panel system thereof so as to account for time-varying noise affecting the touch panel system. The electronic device includes the touch panel system, an analog-to-digital conversion (ADC) unit, and a processing unit. The processing unit is operable to: receive digital signal values from the ADC unit representing capacitances detected by sensing points of the touch panel system; adjust at least one of the digital signal values based at least on a time-varying noise to produce at least one noise-adjusted value; and determine the touch input based on the at least one noise-adjusted value. In one embodiment, the electronic device determines the time-varying noise prior to adjusting the digital signal values. In another embodiment, the time-varying noise is produced by a display panel of a touchscreen display that also includes the touch panel system.
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申请公布号 |
US2011157069(A1) |
申请公布日期 |
2011.06.30 |
申请号 |
US20090650789 |
申请日期 |
2009.12.31 |
申请人 |
ZHUANG ZHIMING;ALBERTH JR WILLIAM P;FOO KEN K |
发明人 |
ZHUANG ZHIMING;ALBERTH, JR. WILLIAM P.;FOO KEN K. |
分类号 |
G06F3/045 |
主分类号 |
G06F3/045 |
代理机构 |
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