发明名称 |
System and method for using DRM to control conditional access to broadband digital content |
摘要 |
A system and method is disclosed for providing DRM in a broadcast environment. In accordance with the embodiment, a DRM system distributes encrypted service keys over the mobile telephone network to a mobile terminal. The mobile terminal receives the encrypted service key and uses it to decrypt encrypted content keys received from a DVB set top box. The decrypted content keys are sent to the set box over local link where they are used to decrypt encrypted broadcast content. A power management technique for mobile receivers is also disclosed that enables the receiver hardware to power off during a portion of the rendering process.
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申请公布号 |
US2005100167(A1) |
申请公布日期 |
2005.05.12 |
申请号 |
US20040939078 |
申请日期 |
2004.09.09 |
申请人 |
ALVE JUKKA;IKONEN ARI;KANGAS MAURI;HEIKKILA TAPANI |
发明人 |
ALVE JUKKA;IKONEN ARI;KANGAS MAURI;HEIKKILA TAPANI |
分类号 |
H04L9/00;H04N7/16;H04N7/167;(IPC1-7):H04L9/00 |
主分类号 |
H04L9/00 |
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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