SYSTEMS AND METHODS FOR PROVIDING FAST VIDEO CHANNEL SWITCHING
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United States of America Patent
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Issued Date -
Sep 1, 2011
app pub date -
Aug 11, 2009
filing date -
Sep 15, 2008
priority date (Note) -
Abandoned
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Abstract
A video decoding device receives video images encoded as video signal data for a selected one of multiple channels, for example provided by a cable TV or satellite TV service. Responsive to a request to switch from viewing a previously-selected channel to viewing a newly-selected channel, the video decoding device enters a first mode for displaying a preview representation of the video signal data received for the newly-selected channel. In this preview mode, video signal data for the newly-selected channel is received and stored, and a first available image from the video signal data is decoded and provided for display as a preview representation. The preview mode image is replaced by a real time representation of the video signal data once it is determined that the stored video signal data exceeds a threshold amount, for example an amount to compensate for maximum expected jitter.
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