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发明名称
PROTECTION AGAINST UNAUTHORISED COPYING FOR A HYBRID DIGITAL VIDEO RECORDING AND UNPROTECTED SOURCE MATERIAL
摘要
申请公布号
PL310623(A1)
申请公布日期
1995.12.27
申请号
PL19940310623
申请日期
1994.03.04
申请人
MACROVISION CORP
发明人
RYAN JOHN O.
分类号
H04N5/91;G06F1/00;G11B5/86;G11B20/00;G11B20/10;G11B20/12;H04N5/913;H04N5/92;H04N5/94;(IPC1-7):H04N5/91
主分类号
H04N5/91
代理机构
代理人
主权项
地址
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