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Data storage device encoding and interleaving codewords to improve trellis sequence detection

  • US 10,063,257 B1
  • Filed: 05/13/2016
  • Issued: 08/28/2018
  • Est. Priority Date: 11/03/2015
  • Status: Active Grant
First Claim
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1. A data storage device comprising:

  • a storage medium; and

    control circuitry configured to;

    encode first data into a first codeword comprising a plurality of i-bit symbols;

    encode second data into a second codeword comprising a plurality of j-bit symbols, wherein i is different than j and a first code rate of the first codeword is less than a second code rate of the second codeword;

    symbol interleave the first codeword and the second codeword to generate an interleaved codeword; and

    write the interleaved codeword to the storage medium.

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