Method for decoding binary code words using estimated values

Details Method for decoding binary code words using estimated values Method for decoding binary code words using estimated values

1986-10-29

1988-11-01

Fleming, Michael R.

Excavating

371 33, 371 37, G06F 1110

Patent

active

047824891

ABSTRACT:
When communicating analogue signals over a data link an analogue signal is digitized at a transmitter into code words which are transmitted. This sequence is reversed at a receiver. At the receiver an estimate is made of the analogue signal value corresponding to each received code word taking into account the conditional probabilities that particular code words were transmitted for the particular received code word. These probabilities are calculated taking into account at least one prevailing condition such as recent history, soft decision information and channel state.

REFERENCES:
patent: 4003020 (1977-01-01), Clarke
patent: 4074228 (1978-02-01), Jonscher
patent: 4340963 (1982-07-01), Munday
patent: 4653053 (1987-03-01), Pelchal
Redinbo, The Optimum Mean Square Decoding of General Block Codes, Information and Control, vol. 31, pp. 341-363.
Atel, Predictive Coding of Speech at Low Bit Rates, IEEE Transactions on Communication, vol. COM-30, No. 4, 4/82 pp.-600-614.

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