发明名称 |
Conditional Access to Encrypted Media Content |
摘要 |
A method and apparatus for processing encrypted content distributed for end users in multiple services includes receiving entitlement information for a subset of at least two of the services separately from the encrypted content for the services and either calculating decryption key information for the subset of services from the entitlement information and storing the decryption key information in memory so that decryption key information for a selected service can subsequently be read from memory, or storing the entitlement information for the subset of services in memory so that the entitlement information for a selected service can subsequently be read from memory and decryption key information for the selected service can be calculated. |
申请公布号 |
US2014086407(A1) |
申请公布日期 |
2014.03.27 |
申请号 |
US201213626056 |
申请日期 |
2012.09.25 |
申请人 |
GENEAL INSTRUMENT CORPORATION;GENERAL INSTRUMENT CORPORATION |
发明人 |
GUSTAFSSON MARCUS;NORLING JONAS;WANDEMO DANIEL |
分类号 |
H04N7/167 |
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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