8B-16B RLL decoder with hamming distance detection

Coded data generation or conversion – Digital code to digital code converters – To or from minimum d.c. level codes

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341 59, 341 94, H03M 700

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active

054914795

ABSTRACT:
Apparatus for decoding an input digital signal by replacing successive n-bit groups of the input digital signal with respective ones from an ensemble of m-bit data words, each m-bit data word having an associated n-bit code word, where n is greater than m, comprises: means for determining the Hamming distance between an n-bit group of the input digital signal and each of the n-bit code words associated with the ensemble of m-bit data words; and means for replacing that n-bit group of the input digital signal with an m-bit data word from the ensemble of m-bit data words for which the Hamming distance between the n-bit code word associated with that m-bit data word and that n-bit group is the lowest.

REFERENCES:
patent: 4593395 (1986-06-01), Schouhamer Immink et al.
patent: 5198813 (1993-03-01), Isozaki

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