JP2005241649A5 - - Google Patents

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Publication number
JP2005241649A5
JP2005241649A5 JP2005050860A JP2005050860A JP2005241649A5 JP 2005241649 A5 JP2005241649 A5 JP 2005241649A5 JP 2005050860 A JP2005050860 A JP 2005050860A JP 2005050860 A JP2005050860 A JP 2005050860A JP 2005241649 A5 JP2005241649 A5 JP 2005241649A5
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JP
Japan
Prior art keywords
data input
input device
speckle pattern
tracking
detected
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JP2005050860A
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English (en)
Japanese (ja)
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JP4308787B2 (ja
JP2005241649A (ja
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Priority claimed from US10/787,642 external-priority patent/US7221356B2/en
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Publication of JP2005241649A publication Critical patent/JP2005241649A/ja
Publication of JP2005241649A5 publication Critical patent/JP2005241649A5/ja
Application granted granted Critical
Publication of JP4308787B2 publication Critical patent/JP4308787B2/ja
Anticipated expiration legal-status Critical
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JP2005050860A 2004-02-26 2005-02-25 レーザスペックルサイズ特性により表面から離れた状態を検出するためのデータ入力デバイス及び方法 Expired - Fee Related JP4308787B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/787,642 US7221356B2 (en) 2004-02-26 2004-02-26 Data input device and method for detecting an off-surface condition by a laser speckle size characteristic

Publications (3)

Publication Number Publication Date
JP2005241649A JP2005241649A (ja) 2005-09-08
JP2005241649A5 true JP2005241649A5 (cg-RX-API-DMAC7.html) 2008-02-07
JP4308787B2 JP4308787B2 (ja) 2009-08-05

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Family Applications (1)

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JP2005050860A Expired - Fee Related JP4308787B2 (ja) 2004-02-26 2005-02-25 レーザスペックルサイズ特性により表面から離れた状態を検出するためのデータ入力デバイス及び方法

Country Status (4)

Country Link
US (1) US7221356B2 (cg-RX-API-DMAC7.html)
EP (1) EP1569081A3 (cg-RX-API-DMAC7.html)
JP (1) JP4308787B2 (cg-RX-API-DMAC7.html)
CN (1) CN100589068C (cg-RX-API-DMAC7.html)

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