发明授权
US5526294A Capacitive touch entry apparatus using drive pulse signals of different
phases
失效
使用不同相位的驱动脉冲信号的电容式触摸输入装置
- 专利标题： Capacitive touch entry apparatus using drive pulse signals of different phases
- 专利标题（中）： 使用不同相位的驱动脉冲信号的电容式触摸输入装置
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申请号： US515877申请日： 1990-04-27
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公开(公告)号： US5526294A公开(公告)日： 1996-06-11
- 发明人: Hiroaki Ono , Yoshiki Taketa , Mikio Nozu , Hiroshi Senda
- 申请人： Hiroaki Ono , Yoshiki Taketa , Mikio Nozu , Hiroshi Senda
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX1-109387 19890428
- 主分类号： H01H13/70
- IPC分类号： H01H13/70 ; H01H36/00 ; H03K17/96 ; H03K17/955
摘要：
A key input device includes first and second key input electrodes being close to each other and being accessible by a finger of an operator. First and second signal input electrodes oppose the first and second key input electrodes respectively. A first signal is applied to the first signal input electrode. A second signal is applied to the second signal input electrode. The first signal and the second signal have different phases.
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