发明名称 |
ACCESS CONTROL ENHANCEMENTS, NETWORK ACCESS UNIT AND SERVICE PROVIDER SERVER FOR DELIVERY OF VIDEO AND OTHER SERVICES |
摘要 |
Include Figure 2; a method of providing secure multicast over a local access network (20) by means of a network access unit (30) having a channel request vetting function (37) and a permitted channel list (39). 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 |
CA2430350(C) |
申请公布日期 |
2012.04.17 |
申请号 |
CA20012430350 |
申请日期 |
2001.11.27 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
UNITT, BRIAN;GRANT, MICHAEL;CABLE, JULIAN;PINO, LOU |
分类号 |
H04L9/00;H04L12/18;H04L12/44;H04L12/56;H04L29/06;H04N7/173 |
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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