发明授权
US5438275A Digitizing stylus having capacitive pressure and contact sensing
capabilities
失效
具有电容压力和接触检测功能的数字化触笔
- 专利标题： Digitizing stylus having capacitive pressure and contact sensing capabilities
- 专利标题（中）： 具有电容压力和接触检测功能的数字化触笔
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申请号： US177106申请日： 1994-01-03
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公开(公告)号： US5438275A公开(公告)日： 1995-08-01
- 发明人: Francis Fado , Tin-Lup Wong , Guy F. Verrier , Robert L. Donaldson , Paul D. Kowalewski
- 申请人： Francis Fado , Tin-Lup Wong , Guy F. Verrier , Robert L. Donaldson , Paul D. Kowalewski
- 申请人地址： NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： NY Armonk
- 主分类号： G06F3/033
- IPC分类号： G06F3/033 ; G01R27/26
摘要：
A stylus assembly in which a stylus is mounted in a housing for movement relative thereto. An electrical circuit is provided for sensing contact of the stylus with a writing surface and measuring the pressure exerted on the surface by the stylus.
公开/授权文献
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