发明名称 |
MPEG-21 digital content protection system |
摘要 |
Digital Rights Management (DRM) or Intellectual Property Management and Protection (IPMP) for generic digital content wherein a IPMP Control Graph and a REL-IPMP Control Graph carries protection signalling and rights expression data. Both content packaging and terminal processing relating to the above control graph are clearly defined and elaborated.
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申请公布号 |
US7433471(B2) |
申请公布日期 |
2008.10.07 |
申请号 |
US20050523193 |
申请日期 |
2005.01.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SHEN SHENG MEI;HUANG ZHONGYANG;JI MING;UENO TAKAFUMI |
分类号 |
H04N7/167;G06F21/00;H04N5/00;H04N7/24 |
主分类号 |
H04N7/167 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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