Data error recovery using reduced speed

Details Data error recovery using reduced speed Data error recovery using reduced speed

1997-12-02

2000-04-11

Kim, W. Chris

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

360 7303, 360 46, G11B 509, G11B 1546

Patent

active

060494395

ABSTRACT:
A method and apparatus for improving the data readability in a disk drive is described. The disk drive uses an error recovery mode in which the rotational speed of the motor is decreased below the normal operating speed and a rereading is performed. The reduced speed lowers the energy generated in collisions with a foreign object and the data error length is shortened allowing data to be read which cannot be read at the normal operating speed.

REFERENCES:
patent: 5233482 (1993-08-01), Galbraith et al.
patent: 5416646 (1995-05-01), Shirai
patent: 5544138 (1996-08-01), Bajorek et al.
patent: 5754355 (1998-05-01), Nakamura et al.

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