Apparatus and method for correcting errors in a communication system
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Jul 31, 1996
filing date -
Jul 31, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An error correction arrangement that contains a Viterbi decoder and an RS decoder to provide inner and outer code decoding, respectively. A score keeper is arranged at the output of the Viterbi decoder to form a score for a decoded byte to indicate the number of error bits in the byte. A tie breaker is provided to compare the score with a preset threshold level. If the score is higher than the threshold level, the corresponding error byte is replaced with an erasure supplied to the RS decoder.
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