Method for recovering data from disk with a dynamic erasure offs

Details Method for recovering data from disk with a dynamic erasure offs Method for recovering data from disk with a dynamic erasure offs

1998-03-17

2000-09-12

De Cady, Albert

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

360 53, G11C 2900

Patent

active

061192619

ABSTRACT:
A method for precisely locating and correcting data errors on a magnetic storage disk with a recording head, e.g. an MR head, in the presence of thermal asperities, scratches, or other data signal degradation causes is set forth. The method includes the steps of reading a sector of data and collecting ECC syndromes. At the same time, data errors may be detected and their proximate location determined, whereupon an ECC process is applied for correction of the errors. In the event the detected data errors are not correctable by the ECC, the method repetitively redefines the detected data error location and applies Forney's ECC erasure correction algorithm to each repetition. These repetitions are carried out a predetermined number of times until the data is corrected or the correction attempts are exhausted.

REFERENCES:
patent: 5233482 (1993-08-01), Galbraith et al.
patent: 5475540 (1995-12-01), Gold
patent: 5537034 (1996-07-01), Lewis
patent: 5680265 (1997-10-01), Noguchi
patent: 5701314 (1997-12-01), Armstrong et al.
patent: 5754355 (1998-05-01), Nakamura et al.
patent: 5917670 (1999-06-01), Scaramuzzo et al.

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