Fly height compensation using temperature and non-repeatable runouts
US7511914B2 · kind B2 · utility
20Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2007 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Mar 29, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5565
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A controller is provided having a circuit that uses non-repeatable run-out data and temperature data to provide a compensation for a fly height of a head. A disk drive may also be provided having a head for reading data from a disk, a thermistor, and a controller for controlling a fly height of the head based on temperature data obtained from the thermistor to refine a pressure determination. A method can include estimating a first pressure by the use of non-repeatable run-out data and temperature data corresponding to a disk drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.