Fast channel switching for digital TV
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jun 29, 2006
app pub date -
Dec 22, 2005
filing date -
Dec 23, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for digital video distribution includes transmitting a multicast stream over a network. Upon receiving, at a time subsequent to a first anchor point and prior to a second anchor point in the multicast stream, a request from a client to begin receiving the multicast stream, a boost stream is generated, including at least a portion of the video data in the frames between the first and second anchor points. The boost stream is transmitted to the client during an interval between the time at which the request was received and the second anchor point in the multicast stream, so as to cause the client to display the video data beginning from the first anchor point. Upon completing transmission of the boost stream, the multicast stream is transmitted to the client beginning from the second anchor point.
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