Method and apparatus for synchronizing clocks
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United States of America Patent
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-
Jan 20, 2009
Grant Date -
Jul 6, 2006
app pub date -
Dec 31, 2004
filing date -
Dec 31, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A system receives multiple data samples and determines time stamp values associated with each of the multiple data samples. The system identifies an earliest time stamp value and uses that time stamp value as an initial system clock value. The system may also subtract a delay factor from the earliest time stamp value to account for delay in decoding the multiple data samples. The earliest time stamp value is also communicated to an audio decoder and a video decoder. The audio and video decoders provide clock data back to a component that maintains the system clock value. If the difference between the clock data received from the decoders and the system clock value exceeds a threshold value, the system clock value is recalculated.
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