专利名称：Method and apparatus for operating a
capacitive tactile keyboard
发明人：Isabelle Jahier,Patrick Robert申请号：US08/049345申请日：19930421公开号：US05525980A公开日：19960611
摘要：A method and apparatus for determining a valid selection of a capacitancetactile keyboard as a function of a selection state and validation state of the keyboard.The selection state is determined from measured capacitive values of each key by duringa first phase of a cycle. The validation state is determined from measured pressure onthe keyboard, for certain key selection states only, during a second phase of the cycle.
申请人：SEXTANT AVIONIQUE
代理机构：Barnes & Thornburg
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