System and method for implementing channel change operations in internet protocol television systems
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United States of America Patent
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N/A
Issued Date -
Feb 22, 2007
app pub date -
Aug 16, 2005
filing date -
Aug 16, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
System and method for facilitating channel change operations in an Internet Protocol television ('IPTV') system are described. One embodiment is a method of implementing a channel change in an IPTV system comprising a set top box ('STB') connected between a TV and an access network. The method comprises, responsive to a request to view a new channel, the STB sending a control message to the access network to join an IP multicast group pair comprising a normal video stream and a companion video stream for the new channel; and responsive to receipt of the control message, the access network transmitting to the STB the normal video stream and the companion video stream.
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