Hybrid printed servo patterns for magnetic media and hard disk systems implementing same
US6961203B1 · kind B1 · utility
40Cited by
30References
110Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Mar 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/865
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hybrid servo pattern, which is printed onto a disk, for use in a disk drive. The hybrid servo pattern is used to position a head relative to the disk. In one embodiment, the hybrid servo pattern includes gray code and chevrons. The gray code provides coarse positioning information, and the chevrons provide fine positioning information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.