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发明名称
Improved techniques for detecting, analyzing, and using visible authentication patterns
摘要
申请公布号
EP1780636(A3)
申请公布日期
2007.10.03
申请号
EP20060121847
申请日期
2005.01.06
申请人
DE
发明人
FR;FR
分类号
G06F7/02;H04N1/32
主分类号
G06F7/02
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