Method to avoid contact between the head and disk protrusions
US7382565B2 · kind B2 · utility
3Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2005 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Sep 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5534
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk drive with a controller that controls a movement of a head relative to a disk. The controller causes the head to avoid a defect on the disk during a seek routine. The location of the defect is previously identified and stored in the drive. The drive may create a “no-fly” zone about the defect to insure no contact with the head. The no-fly zone can be avoided by delaying the start of a seek routine, varying the displacement profile of the head or other techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.