发明名称 |
Device for inputting data |
摘要 |
In an apparatus for the input of information, it is provided that a raster or an array of light-emitting screen elements is associated with a raster or an array of photodetectors, the light emitted by at least one of the screen elements being reflected to at least one of the photodetectors when an object approaches the apparatus; it is further provided that output signals of the photodetectors are used to obtain information on which of the photodetectors are receiving reflected light.
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申请公布号 |
US6504143(B2) |
申请公布日期 |
2003.01.07 |
申请号 |
US19990194554 |
申请日期 |
1999.09.10 |
申请人 |
DEUTSCHE TELEKOM AG |
发明人 |
KOOPS HANS WILFRIED;KOOPS ULRICH |
分类号 |
G06F3/042;G06F3/033;G06F3/041;H01J31/12;H01J31/28;H04N1/028;(IPC1-7):H01J40/14 |
主分类号 |
G06F3/042 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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