System and method for clock drift correction for broadcast...

Details System and method for clock drift correction for broadcast... System and method for clock drift correction for broadcast...

2004-11-13

2009-11-17

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S354000, C375S376000, C375S362000, C375S374000, C455S502000, C370S516000, C370S252000, C370S350000, C370S389000, C709S200000

Reexamination Certificate

active

07620137

ABSTRACT:
A clock rate used in rendering broadcast streaming audio/video data is adjusted to converge on a clock rate associated with broadcasting the streaming data. The clock rate is adjusted by monitoring the buffer depth associated with a receive buffer that stores the incoming streaming data. The buffer depth provides an estimate of clock drift between the two clock rates. From the estimate of clock drift, the clock rate used in rendering broadcast streaming data is adjusted to avoid the clock drift causing skips or pauses in the rendered audio/video data.

REFERENCES:
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patent: 5852630 (1998-12-01), Langberg et al.
patent: 6880098 (2005-04-01), Huntsman
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patent: 7254310 (2007-08-01), Gates et al.
patent: 7415044 (2008-08-01), Kallstenius
patent: 2004/0186877 (2004-09-01), Wang et al.
patent: 2005/0220240 (2005-10-01), Lesso

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