Disk drive with shock evaluator

Details Disk drive with shock evaluator Disk drive with shock evaluator

1999-04-16

2000-01-25

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

360 75, 369 54, G11B 1504

Patent

active

060184310

ABSTRACT:
A disk drive system comprising a shock evaluator is disclosed. The shock evaluator includes a shock evaluation circuit and threshold logic and firmware that is capable of evaluating the level of physical shocks to the disk drive system. The shock evaluation circuit is capable of comparing the level of a physical shock to threshold shock values. The threshold logic and firmware is capable of periodically resetting the threshold shock values to account for the change in operating conditions experienced by the disk drive system. When the shock evaluator determines that a physical shock is present, communication between the read/write transducer and the disk is interrupted to prevent corruption of data stored on the disk.

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