Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code

Full Title

Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits > Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction > Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code

Classification Context

Section:

ELECTRICITY

Class:

ELECTRONIC CIRCUITRY

Subclass:

CODING, DECODING OR CODE CONVERSION, IN GENERAL

Child Classifications

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• H03M 7/42 using table look-up for the coding or decoding process, e.g. using read-only memory
• H03M 7/44 Suppression of irrelevant zeroes