Multiplex communications – Wide area network – Packet switching
Patent
1995-04-10
1996-10-01
Heckler, Thomas M.
Multiplex communications
Wide area network
Packet switching
39520013, 370 941, H04J 324, G06F 15163
Patent
active
055617913
ABSTRACT:
In an interactive video-on-demand system, real-time programs are encoded as a transport stream including a plurality of transport stream packets. Some of the transport stream packets include timing signals indicating the real time of the program. The transport stream packets are formatted into transport cells for transport over an asynchronous transfer mode network from a source to a destination. The cells are transported at a transport rate which is determined by a network clock. The transport rate is chosen to deliver the transport stream faster than the real time of the program. While transporting the transport stream, it is determined if the transport stream is being transported ahead of the real time of the program. In this case, idle cells are injected into the transport stream to have the program arrive at the destination in the real time of the program.
REFERENCES:
patent: 5384774 (1995-01-01), Martin et al.
patent: 5392280 (1995-02-01), Zheng
patent: 5392286 (1995-02-01), Tanaka et al.
patent: 5414696 (1995-05-01), Tsuzuki et al.
patent: 5467344 (1995-11-01), Solomon et al.
Goldman Matthew S.
Mendelson Jeffrey B.
Morris David E.
Brinkman Dirk
Digital Equipment Corporation
Fisher Arthur W.
Heckler Thomas M.
Hudgens Ronald C.
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