On-the-fly error correction

Details On-the-fly error correction On-the-fly error correction

1990-12-18

1993-09-07

Beausoliel, Jr., Robert W.

Excavating

371 402, H03M 1300

Patent

active

052436047

ABSTRACT:
On-the-fly error correction is provided using syndromes of a codeword encoded on data storage media. First and second syndromes are generated and a variable prescaler prescales the second syndrome by a field element to produce a prescaled second syndrome where the field element is variable. The error value is determined based on the first syndrome, and the error location is determined based on a comparison between the error value and the value of the prescaled second syndrome. The error value located at the error location is then corrected.

REFERENCES:
patent: 4151510 (1979-04-01), Howell et al.
patent: 4236247 (1980-11-01), Sundberg
patent: 4397022 (1983-08-01), Weng et al.
patent: 4567594 (1986-01-01), Deodhar
patent: 4569051 (1986-02-01), Wilkinson
patent: 4633471 (1986-12-01), Perera et al.
patent: 4890287 (1989-12-01), Johnson et al.
patent: 4961193 (1990-10-01), Debord et al.

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