Hard disk drive, method for controlling FOD voltage thereof, and computer readable recording medium recording the method
US7576938B2 · kind B2 · utility
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1References
15Claims
0Family size
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Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Apr 24, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flying on demand (FOD) voltage of a hard disk drive (HDD) is controlled by detecting a shock occurring to the HDD on which a magnetic head that records data on a disk or reproduces data from the disk is mounted, and if the shock is detected, controlling the FOD voltage that is applied to the magnetic head to thermally expand an end of the magnetic head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.