JP2008160827A5 - - Google Patents

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Publication number
JP2008160827A5
JP2008160827A5 JP2007313195A JP2007313195A JP2008160827A5 JP 2008160827 A5 JP2008160827 A5 JP 2008160827A5 JP 2007313195 A JP2007313195 A JP 2007313195A JP 2007313195 A JP2007313195 A JP 2007313195A JP 2008160827 A5 JP2008160827 A5 JP 2008160827A5
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original
pattern
digital
analog format
analog
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JP2007313195A
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JP2008160827A (ja
JP4981641B2 (ja
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Priority claimed from US10/287,206 external-priority patent/US6782116B1/en
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JP2007313195A 2002-05-14 2007-12-04 印刷文書のための可視認証パターン Expired - Lifetime JP4981641B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US38018902P 2002-05-14 2002-05-14
US60/380,189 2002-05-14
US10/287,206 US6782116B1 (en) 2002-11-04 2002-11-04 Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation
US10/287,206 2002-11-04

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JP2004505966A Division JP4554358B2 (ja) 2002-05-14 2003-05-14 印刷文書のための可視認証パターン

Publications (3)

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JP2008160827A JP2008160827A (ja) 2008-07-10
JP2008160827A5 true JP2008160827A5 (enExample) 2009-08-06
JP4981641B2 JP4981641B2 (ja) 2012-07-25

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JP2004505966A Expired - Lifetime JP4554358B2 (ja) 2002-05-14 2003-05-14 印刷文書のための可視認証パターン
JP2007313195A Expired - Lifetime JP4981641B2 (ja) 2002-05-14 2007-12-04 印刷文書のための可視認証パターン

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JP2004505966A Expired - Lifetime JP4554358B2 (ja) 2002-05-14 2003-05-14 印刷文書のための可視認証パターン

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US (3) US7809152B2 (enExample)
EP (1) EP1514227B1 (enExample)
JP (2) JP4554358B2 (enExample)
CN (1) CN1669046B (enExample)
ES (1) ES2424480T3 (enExample)
MX (1) MXPA04011277A (enExample)
WO (1) WO2003098540A1 (enExample)

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