Location dependent variable error correction processing for mult

Details Location dependent variable error correction processing for mult Location dependent variable error correction processing for mult

1994-05-23

1996-01-23

Gordon, Paul P.

Excavating

371 41, 371 43, G06F 1110

Patent

active

054870771

ABSTRACT:
The error correction code capability of the linear recording density of a zone of contiguous recording tracks on a surface or volume having at lest two zones of different average linear recording density is adjusted. Each zone has associated therewith a parameter pair (r,R) defining the number of error correction bytes r to be appended to data blocks to form a codeword written to tracks within the zone and the number R.ltoreq.(r/2-1) of correctable errors in the event of a non-zero remainder detected upon readback of a codeword from a track within the zone. The r parameter controls the length of a shift register type encoder syndrome generator.

REFERENCES:
patent: 3400371 (1968-09-01), Amdahl et al.
patent: 4207609 (1980-06-01), Luiz et al.
patent: 5068858 (1991-11-01), Blaum et al.
patent: 5289478 (1994-02-01), Barlow et al.
patent: 5375127 (1994-12-01), Leak et al.
patent: 5379305 (1995-01-01), Wing

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