Error correction mechanism using pattern predictive error correc

Details Error correction mechanism using pattern predictive error correc Error correction mechanism using pattern predictive error correc

1991-01-28

1993-01-19

Baker, Stephen M.

Excavating

H03M 1300

Patent

active

051812070

ABSTRACT:
A mechanism for correcting errors in a stream of digital data that are encoded at a transmitter site, transmitted over a communication channel to a receiver site and decoded at the receiver site to recover the digital data pre-encodes the data using a parity-encoder. The location of the errors is determined through a comparison operation on which the receiver is able to generate a `template` of the pattern of errors in the received digital data stream. This error pattern template is then used in an iterative pattern predictive error correction process to identify the location of burst errors contained in the recovered data and to controllably modify the output of the receiver's host decoder so as to remove the located errors from the originally decoded data.

REFERENCES:
patent: 4633470 (1986-12-01), Welch et al.
patent: 4821268 (1989-04-01), Berlekamp
Berlekamp, E., et al., "The Application of Error Control to Communications", IEEE Communications Magazine, Apr. 1987, vol. 25, No. 4, pp. 44-57.

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