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US 7,009,796 B2Granted
Hard disk drive tagging calibration results with temperature, time and/or voltage
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsFernando Zayas, Stephen G. Paul
Life of this patent
Estimating the term…
Abstract
The results of a calibration can be stored in a hard disk drive along with a hard disk condition indication. After the hard disk is re-started, it can be checked to see whether the stored hard disk condition indication is sufficiently close to a current hard disk condition indication. If the condition indication is sufficiently close, the stored calibration results can be used.
Claims24
A hard disk drive comprising:
- non-volatile memory;
- and
- a controller to calibrating all or a portion of the hard disk drive and store the calibration results along with a hard disk condition indication in the non-volatile memory, wherein, after a later power-up, the stored hard disk condition indication is used to determine whether to recalibrate all or a portion of the hard disk drive.
Dependencies are inferred from the claim text.