Error correcting coder/decoder

Details Error correcting coder/decoder Error correcting coder/decoder

1986-12-29

1989-02-14

Smith, Jerry

Excavating

G06F 1110

Patent

active

048051748

ABSTRACT:
This invention relates to a convolutional encoder which encodes original data into convolutional codes by using a multinomial from which predetermined terms of the generation multinomial for generating the original convolutional codes are eliminated to thereby achieve high transmission efficiency as well as high error correcting capacity. The maximum likelihood decoder which is provided on the receiver side to correspond to the encoder can decode in maximum likelihood by calculating the branch metrics of received encoded data and decode the original data in correspondence to the coding rate of the original data with those branch metrics.

REFERENCES:
patent: 4500994 (1985-02-01), McCallister
patent: 4669084 (1987-05-01), Hartman

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