发明名称 |
METHOD AND SYSTEM FOR ADDING A CONDITIONAL ACCESS SYSTEM. |
摘要 |
<p>A method for adding a conditional access system to a digital audio video transmission system that delivers content from a source to a security device associated with an audio video processing device by providing at the broadcast source a datastream having system information data including an unused identifier reserved for security data associated with the additional conditional access system.</p> |
申请公布号 |
MXPA02004353(A) |
申请公布日期 |
2002.11.07 |
申请号 |
MX2002PA04353 |
申请日期 |
2000.11.02 |
申请人 |
THOMSON LICENSING S.A. |
发明人 |
DAVID JAY DUFFIELD. |
分类号 |
H04N7/08;H04H1/00;H04N7/081;H04N7/16;H04N7/24 |
主分类号 |
H04N7/08 |
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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