Disk drive in which the dynamic flying height of head is adjusted
US7706098B2 · kind B2 · utility
4Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Feb 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, an adjusting element adjusts a dynamic flying height of a head lying over a disk in accordance with the power supplied to it. A calculation module calculates the power to supply to the adjusting element, from a barometric pressure detected by a barometric pressure sensor. A failure detection module detects failure of the barometric pressure sensor. An unload controller predicts an abnormal dynamic flying height of the head from the failure detected and then instructs the unloading of the head away from the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.