发明名称 |
Method and Apparatus for False Sync Lock Detection in a Digital Media Receiver |
摘要 |
A method and apparatus for identifying a false MPEG-2 packet synchronization lock condition by parsing MPEG-2 packets that may have been incorrectly delineated by a sync-byte checksum-decoder, to detect resulting anomalies. Forcing the restart of the conventional checksum-encoded sync-byte synchronization/lock process upon generating a "resync" command based upon the anomalies detected by a False Lock Detector. Reliably synchronizing and delivering the MPEG-2 stream to the receiver transport layer. The False-Lock Detector circuit compares the content of the currently identified packet header or payload portion of a sync-byte delineated packet with expected values in order to detect a false-lock condition and to eliminate false sync-byte position-candidates from the basis of a "synchronization lock".
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申请公布号 |
US2008025389(A1) |
申请公布日期 |
2008.01.31 |
申请号 |
US20040560413 |
申请日期 |
2004.06.16 |
申请人 |
MARKMAN IVONETE;LIU WEIXIAO;HORLANDER THOMAS EDWARD;MAYER MATTHEW THOMAS |
发明人 |
MARKMAN IVONETE;LIU WEIXIAO;HORLANDER THOMAS EDWARD;MAYER MATTHEW THOMAS |
分类号 |
H04N7/12;H04J3/06;H04L7/04;H04N7/66 |
主分类号 |
H04N7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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