ACTIVE DATA HIDING FOR SECURE ELECTRONIC MEDIA DISTRIBUTION,申请号EP20000976611-传众专利搜索

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发明名称	ACTIVE DATA HIDING FOR SECURE ELECTRONIC MEDIA DISTRIBUTION
摘要
申请公布号	EP1222769(A1)	申请公布日期	2002.07.17
申请号	EP20000976611	申请日期	2000.10.19
申请人	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.	发明人	YU, HONG, HEATHER;GELMAN, ALEXANDER, D.;FISH, ROBERT, S.
分类号	G06F21/22;G11B20/00;H04L29/06;H04L29/08;H04N7/08;H04N7/081;H04N7/24;H04N7/26;(IPC1-7):H04L9/00	主分类号	G06F21/22
代理机构		代理人
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