×

Iterating inner and outer codes for data recovery

  • US 9,015,549 B2
  • Filed: 04/26/2011
  • Issued: 04/21/2015
  • Est. Priority Date: 04/26/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • performing a first iteration of an inner code word error correction process including;

    determining if an inner code can correct errors in a first selected inner code word of multiple inner code words;

    when the inner code can correct the first selected inner code word, performing an inner code error correction on the first selected inner code word;

    repeating the inner code word error correction process for another selected inner code word of the multiple inner code words;

    performing a first iteration of an outer code word error correction process when there are uncorrected inner code words, including;

    determining if an outer code can correct errors in a first selected outer code word of multiple outer code words wherein each symbol included in one of the inner code words is also included in one of the outer code words;

    when the outer code can correct the first selected outer code word, performing an outer code error correction on the first selected outer code;

    repeating the outer code word error correction process for another selected outer code word of the multiple outer code words; and

    performing a second iteration of the inner code word error correction process when there are uncorrected outer code words.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×