Clock recovery algorithm for remultiplexing MPEG-2 SPTSs and/or MPTSs in the presence of network jitter
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United States of America Patent
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Aug 17, 2010
Grant Date -
Jul 6, 2006
app pub date -
Jan 4, 2005
filing date -
Jan 4, 2005
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Abstract
A method and apparatus for clock recovery for constant bit rate MPEG-2 compliant single program transport stream and multiple program transport stream delivered over UDP/IP is disclosed. Clock recovery utilizes a dejittering filter to remove arrival time jitter from received packets and a phase lock loop is used to recover a PCR clock rate up to a range allowed by the MPEG-2 System specification. An MPEG-2 compliant output stream is produced, even when the input PCR does not meet the timing requirement specified by the MPEG-2 System specification.
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