Iterative Reed-Solomon error-correction decoding

  • US 7,328,395 B1
  • Filed: 12/07/2004
  • Issued: 02/05/2008
  • Est. Priority Date: 04/13/2004
  • Status: Active Grant
First Claim
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1. A method of correcting errors in a decision-codeword by employing a Reed Solomon error-correction code RS(n,k) having a correction capability t=(n−

  • k)/2, the method comprising;

    iteratively;

    determining whether errors in a decision-codeword are of a degree that exceeds a Reed Solomon error-correction code'"'"'s correction capability, by using an error indicator for the decision-codeword,modifying the decision-codeword to produce a modified decision-codeword if the degree of the errors exceeds the correction capability, andgenerating an error indicator for the modified decision-codeword using the error indicator for the decision-codeword;

    where;

    the modified decision-codeword is a decision-codeword in a next iteration.

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