发明授权
- 专利标题: Input devices and their use
- 专利标题(中): 输入设备及其使用
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申请号: US09862948申请日: 2001-05-22
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公开(公告)号: US07391861B2公开(公告)日: 2008-06-24
- 发明人: David H. Levy
- 申请人: David H. Levy
- 申请人地址: US MA Cambridge
- 专利权人: Digit Wireless, LLC
- 当前专利权人: Digit Wireless, LLC
- 当前专利权人地址: US MA Cambridge
- 代理机构: Fish & Richardson P.C.
- 主分类号: H04M3/00
- IPC分类号: H04M3/00 ; H04M1/00 ; H04M9/00
摘要:
A keypad in which output keystrokes are determined both from individual switch activation and from the combined activation of adjacent switches. The keypad has a substrate carrying an array of sense elements arranged to change state in response to keypad operation, a flexible cover disposed above the substrate and having an exposed surface defining an array of independent key regions, with combination key regions defined in interstices between adjacent independent key regions. Snap elements provide tactile feedback. Some versions have a touch-sensitive grid rather than a switch matrix. A method of dialing a telephone includes generating a corresponding sequence of numerals by transposing alpha character input into one of the numerals 2 through 9 according to standard telephone keypad letter-number correspondence
公开/授权文献
- US20020025837A1 Input devices and their use 公开/授权日:2002-02-28
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