| 摘要 |
A system and method for encoding a sequence of 32 bit digital data words into a sequence of 33 or more bit codewords having constraints of (d=0, G=9/I=9) for recording upon a magnetic medium within a magnetic recording channel are disclosed. The method includes dividing each 32 bit digital data word into three 8-bit bytes and another 8-bit byte, expanding the another 8-bit byte into a 9-bit word, dividing the 9-bit word into three 3-bit subparts, forming three 11-bit intermediate blocks, each comprising one of the three 3-bit subparts and one of the three 8-bit bytes, encoding each of the three 11-bit intermediate blocks to generate three 11-bit encoded words, and forming each codeword from a set of the three 11 -bit encoded words. The set of the three 11-bit encoded words satisfies a predetermined minimum zero run length (d) constraint, a predetermined maximum zero run length (G) constraint, and a predetermined maximum interleave zero run length (I) coding constraint.
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