Error-tolerant byte synchronization recovery scheme
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United States of America Patent
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Aug 6, 1996
Issued Date -
N/A
app pub date -
May 12, 1995
filing date -
Jun 8, 1992
priority date (Note) -
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Abstract
An improved technique for detecting a byte synchronization field encoded on a data storage drive. The technique correctly recovers the byte synchronization even if the byte is corrupted by a single burst error of as many as b bits. One preferred embodiment of an apparatus which implements the improved technique includes a data register for accepting a sequence of data bits from the data storage drive and a synchronization pattern register for storing a selected error-tolerant synchronization field sequence. The contents of the synchronization pattern register are compared with the contents of the data register, and a synchronization detector locates the synchronization field in the sequence of data bits. A number of improved byte synchronization sequences are provided, which yield improved error tolerance when employed in conjunction with the above scheme. A method for determining such improved byte synchronization sequences is also provided.
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