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PROCESS AND APPARATUS TO CODE AN N-BITS INFORMATION WORD INTO A M-BITS WORD, N 2 AND 7 N, IN WHICH THE CC COMPONENT OF SUCCESSIVE CODE WORDS AND MINIMIZED, THE PROCESS TO DECODE A N INFORMATION WORD -BITS OF A WORD OF INFORMATION OF N-BITS OF A WORD CODE OF M-BITS RECEIVED ENCODED
PROCESS AND APPARATUS TO CODE AN N-BITS INFORMATION WORD INTO A M-BITS WORD, N 2 AND 7 N, IN WHICH THE CC COMPONENT OF SUCCESSIVE CODE WORDS AND MINIMIZED, THE PROCESS TO DECODE A N INFORMATION WORD -BITS OF A WORD OF INFORMATION OF N-BITS OF A WORD CODE OF M-BITS RECEIVED ENCODED
A method and apparatus are provided for encoding an n-bit information word into an m-bit code word, n/=2 and mn, wherein the DC component of successive code words is minimized. The digital sum variation (DSV) of a plurality of preceding m-bit code words is used to determine which of, for example, two m-bit code words should be generated to represent the n-bit information word to be encoded. The m-bit code word whose disparity, when combined with the digital sum variation, reduces the digital sum variation towards zero is selected.
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