发明名称 |
Demand-cast system and bandwidth management for delivery of interactive programming |
摘要 |
A system for more efficient utilization of the finite bandwidth available for distribution of interactive program guide (IPG) video sequences. The system utilizes a session manager and a transport stream generator to enable a set top terminal to access an entire array of guide pages from the IPG within the constraints imposed by the limited bandwidth available in the distribution network. One embodiment of the present invention comprises a system that includes a session manager (SM) and a transport stream generator (TSG) within a distribution control center. The SM monitors and controls usage of demand-cast stream bandwidth within the distribution network. The TSG receives information from the SM on each demand-cast stream. The information includes which set top terminals, if any, are currently acquiring the stream. The TSG uses the information to control the demand-cast streams multiplexed into the transport stream for distribution to the set top terminals. |
申请公布号 |
AU3303201(A) |
申请公布日期 |
2001.08.07 |
申请号 |
AU20010033032 |
申请日期 |
2001.01.24 |
申请人 |
DIVA SYSTEMS CORPORATION |
发明人 |
DONALD F. GORDON;SADIK BAYRAKERI;EDWARD A. LUDVIG;EUGENE GERSHTEIN;JEREMY S. EDMONDS;JOHN P. COMITO;ALFRED LI |
分类号 |
H04N7/173;H04N21/236;H04N21/262;H04N21/434;H04N21/6405;H04N21/6408;H04N21/658 |
主分类号 |
H04N7/173 |
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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