Device and method for switching from a first data stream to a second data stream
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United States of America Patent
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Nov 28, 2017
Grant Date -
Oct 29, 2015
app pub date -
Dec 4, 2013
filing date -
Dec 11, 2012
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Abstract
A device receives first and second data streams representing an audio and/or video content. The device is configured beforehand so as to disseminate the content from the first stream. Following a command for switching from the first stream to the second stream, the device determines by correlation a reference point in the first stream and in the second stream, and determines an offset in time from time-stamping information associated with the reference point in each of the first and second streams. Before switching, the device: pauses the second stream until the offset in time is absorbed when the offset in time indicates that the first stream is late; decreases a frame rate of the first stream until the offset in time is absorbed when the offset in time indicates that the first stream is in advance.
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