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发明名称
Verfahren und Gerät zum Erzeugen von Wasserzeichen für Datensätze
摘要
申请公布号
DE69941043(D1)
申请公布日期
2009.08.13
申请号
DE19996041043
申请日期
1999.04.09
申请人
INTERNATIONAL BUSINESS MACHINES CORP.
发明人
COPPERSMITH, DON;MINTZER, FREDERICK COLE;TRESSER, CHARLES P.;WU, CHAI WAH;YEUNG, MINERVA MING-YEE
分类号
H04N1/32;G06T1/00;G09C1/00;G09C5/00;H04L9/32;H04N1/387;H04N7/08;H04N7/081
主分类号
H04N1/32
代理机构
代理人
主权项
地址
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