Feed forward compensation for fly height control in a disk drive
US7839595B1 · kind B1 · utility
130Cited by
71References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2008 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Dec 19, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of selecting a dynamic fly height (DFH) control setting for a head in a disk drive is disclosed. The head is servoed over a disk, and a fly height measurement is generated for the head. A frequency component is extracted from the fly height measurement, and the DFH control setting for the head is adjusted in response to the extracted frequency component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.