Watermark embedding method and system,申请号EP19980116571-传众专利搜索

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发明名称	Watermark embedding method and system
摘要
申请公布号	EP0901102(B1)	申请公布日期	2004.11.24
申请号	EP19980116571	申请日期	1998.09.02
申请人	HITACHI, LTD.	发明人	ECHIZEN, ISAO;YOSHIURA, HIROSHI;NAKAMURA, MASAFUMI;ARAI, TAKAO;TAKEUCHI, TOSHIFUMI
分类号	H04N7/08;G06T1/00;H04N1/32;H04N1/387;H04N7/081;(IPC1-7):G06T1/00	主分类号	H04N7/08
代理机构		代理人
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