.~ Forward error correction by tree code (e.g., convolutional) {9}
795
.~.~ Viterbi decoding
DEFINITION
Classification: 714/795
Viterbi decoding:
(under subclass 786) Subject matter where data is not decoded as soon as it is received, instead, a sequence of data, having a predetermined decoding depth, following the digit to be decoded is first collected, then, by computing what are known as path metrics, a limited number of possible messages are selected, each extending throughout the decoding depth far beyond the digit presently to be decoded, with one such survivor sequence ending in each of the data states.
SEE OR SEARCH THIS CLASS, SUBCLASS:
794, for maximum likelihood decoding.
796, for branch metric calculation decoding.
SEE OR SEARCH CLASS
375, Pulse or Digital Communications,
262, and 341 for Viterbi decoding (other than for error correction) in pulse or digital communication. 704, Data processing-Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,
