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1. 发明授权

US08884898B2 Touch sensing device and touch sensing method thereof 有权
标题翻译：触摸感测装置及其触摸感测方法
公开(公告)号：US08884898B2
公开(公告)日：2014-11-11
申请号：US13451096
申请日：2012-04-19
申请人： Ming-Yu Ho
发明人： Ming-Yu Ho
IPC分类号： G06F3/041
CPC分类号： G06F3/041 , G06F2203/04101
摘要： A touch sensing device is provided. The provided touch sensing device may include a touch sensing circuit having a conducting unit for generating an alternating current (AC) touch signal, a phase delaying circuit electrically coupled to the touch sensing circuit for receiving the AC touch signal and delaying the AC touch signal for a predetermined phase so as to derive a delayed signal, and a determination circuit electrically coupled to the touch sensing circuit and the phase delaying circuit for comparing intensities of the delayed signal and the AC touch signal with a predetermined threshold in order to derive a waveform-overlapping time period. When the waveform-overlapping time period is longer than a predetermined period, the determination circuit concludes the conducting unit is approached or contacted by the conductor.
摘要翻译：提供一种触摸感测装置。所提供的触摸感测装置可以包括具有用于产生交流（AC）触摸信号的导电单元的触摸感测电路，电耦合到触摸感测电路的相位延迟电路，用于接收AC触摸信号并延迟AC触摸信号预定相位以得到延迟信号;以及确定电路，电耦合到所述触摸感测电路和所述相位延迟电路，用于将所述延迟信号和所述AC触摸信号的强度与预定阈值进行比较，以便导出波形 - 重叠时间段当波形重叠时间段长于预定周期时，确定电路结束导体单元被导体接近或接触。

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