Hard disk drive fly height adjust method and apparatus during error recovery
US7352525B1 · kind B1 · utility
8Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2006 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jun 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data recovery, following a read error in a hard disk drive, is provided which includes an adjustment of fly height. In one embodiment, some re-reads are performed by both adjusting the fly height and the off-track positioning of the read head. In one embodiment, two or more fly heights are normally used during read/write operations such as in a zoned manner, and adjustments to fly heights are performed with respect to the fly height for the zone where the error occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.