发明名称 |
Access control enhancements for delivery of video and other services |
摘要 |
A method of providing secure multicast over a local access network by means of a network access unit having a channel request vetting function and a permitted channel list. Channel requests from a subscriber are vetted with respect to the permitted channel list and forwarded only if permitted. The permitted list may be dynamically updated under headend control to allow users to subscribe to, and unsubscribe from, services upon request.
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申请公布号 |
US6970461(B2) |
申请公布日期 |
2005.11.29 |
申请号 |
US20000725360 |
申请日期 |
2000.11.29 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
UNITT BRIAN;GRANT MICHAEL;CABLE JULIAN;PINO LOU |
分类号 |
H04L12/18;H04L12/44;H04L12/56;H04L29/06;H04N7/173;(IPC1-7):H04L12/26 |
主分类号 |
H04L12/18 |
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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