Storage device and error correction method thereof

Details Storage device and error correction method thereof Storage device and error correction method thereof

2005-07-19

2005-07-19

Torres, Joseph D. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S797000

Reexamination Certificate

active

06920599

ABSTRACT:
Positions in which errors have occurred are found more accurately and erasure correction is performed more effectively than in cases where TA flags or error flags issued by the R/W channel are utilized as information indicating the positions in which errors have occurred, [this being accomplished] by reading the same sector on the magnetic disk a plurality of times, storing the plurality of NRZ data thus obtained, comparing these NRZ data in byte units, judging that an error has occurred in byte positions where the NRZ data reproduced in each read operation differs, and utilizing these positions as erasure pointers for erasure correction.

REFERENCES:
patent: 5321703 (1994-06-01), Weng
patent: 5701314 (1997-12-01), Armstrong et al.
patent: 6092231 (2000-07-01), Sze
patent: 6332204 (2001-12-01), Russell
patent: 6427215 (2002-07-01), Rafanello et al.
patent: 6-20403 (1994-01-01), None
patent: 2000-100086 (2000-04-01), None

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