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发明名称
DYNAMIC COMPOSITION OF PRE-ENCRYPTED VIDEO ON DEMAND CONTENT
摘要
申请公布号
KR101085539(B1)
申请公布日期
2011.11.23
申请号
KR20067007496
申请日期
2004.09.30
申请人
发明人
分类号
H04N21/2347;H04N7/167
主分类号
H04N21/2347
代理机构
代理人
主权项
地址
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