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21. 发明授权

US06639159B2 Key input circuit and portable terminal input device 失效
标题翻译：键输入电路和便携式终端输入装置
公开(公告)号：US06639159B2
公开(公告)日：2003-10-28
申请号：US10319136
申请日：2002-12-13
申请人： Takeshi Anzai
发明人： Takeshi Anzai
IPC分类号： H01H954
CPC分类号： H01H13/807 , H01H13/48 , H01H13/7006 , H01H2203/02 , H01H2203/038 , H01H2225/002 , H01H2225/01 , H01H2225/018
摘要： A key input device for portable terminals and the like, having a reduced sized and improved key input operation. The device has a wiring substrate, multiple keys on the substrate, with each key having three-dimensional displacement surfaces that are displacable in a linked fashion relative to one another. The displacement surfaces have a preceding displacement surface and a succeeding displacement surface corresponding respectively to a preceding and a succeeding key displacement. A first switching operation occurs when a first key part of a first key and first substrate part of the wiring substrate are brought into mechanical contact with each other on the basis of displacement of the preceding displacement surface. A second switching operation results when a second key part of a second key and a second substrate part of the wiring surface are contacted on the basis of displacement of the succeeding displacement surface.
摘要翻译：用于便携式终端等的键输入装置，具有减小尺寸和改进的键输入操作。该装置具有布线基板，基板上的多个键，每个键具有三维位移表面，该三维位移表面可相对于彼此以连接的方式置换。位移面具有先前的位移表面和分别对应于前一个和后一个键位移的后续位移表面。当第一键的第一键部和布线基板的第一基板部分基于前一位移面的位移而彼此机械接触时，发生第一切换操作。当第二键的第二键部分和布线面的第二基板部分基于随后的位移面的位移而接触时，产生第二切换操作。

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