发明授权
US08248084B2 Touch detection techniques for capacitive touch sense systems 有权
触摸检测技术用于电容式触摸感测系统

Touch detection techniques for capacitive touch sense systems
摘要:
A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sense element. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The capacitance sense interface monitors a rate of change of the measured capacitance values and rejects an activation of the capacitance sense element as a non-touch event when the rate of change of the measured capacitance values have a magnitude greater than a threshold level, indicative of a maximum rate of change of a touch event.
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