Apparatus for decoding error-correcting codes

Details Apparatus for decoding error-correcting codes Apparatus for decoding error-correcting codes

1984-06-01

1986-12-16

Roskoski, Bernard

Communications: electrical

Audible indication

Percussion-type sound producer

371 43, H03M 500

Patent

active

046300325

ABSTRACT:
An improvement to a Viterbi-type decoder for decoding convolutional error-correcting codes whereby decisions regarding which predecessor state to a given state most probably corresponds to the best path terminating in that given state are stored in association with that given state and not in association with the best path. Paths are reconstructed by searching through such stored decisions. Such searches are used to recover a number, possibly greater than one of data symbols for later output from the decoder. The larger this number, the less frequently a search need be carried out.

REFERENCES:
patent: 4240156 (1980-12-01), Doland
patent: 4346473 (1982-08-01), Davis
patent: 4354269 (1982-10-01), Vries et al.
patent: 4493082 (1985-01-01), Cumberton et al.

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