Coded data generation or conversion – Digital code to digital code converters – To or from constant distance codes
Patent
1996-11-26
1999-09-28
Hoff, Marc S.
Coded data generation or conversion
Digital code to digital code converters
To or from constant distance codes
341107, H03M 714
Patent
active
059595582
ABSTRACT:
A coding scheme for coding information having a nonuniform probability distribution function. According to exemplary embodiments, a code word is assigned to the information corresponding to the peak level of the probability density function, and is referred to as the kernel. New code words having a Hamming distance of 1 to the kernel are then assigned to information adjacent to the peak level of the probability density function. The new code words are arranged around the kernel in as compact a manner as possible. If there are forbidden code words, the kernel is selected appropriately and the forbidden words are omitted from the resulting code table.
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Hoff Marc S.
Telefonaktiebolaget LM Ericsson
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