Method and apparatus for servo writing in a disk drive
US6943977B2 · kind B2 · utility
10Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2003 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Dec 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59633
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed a self-supporting-type servo writing apparatus in which a head of a disk drive is used to write a servo pattern on a disk. In the disk drive, the disk is incorporated in which a clock pattern is pre-written as a signal pattern for position detection in a rotation direction. The servo writing apparatus uses the servo pattern written on the disk by a write head device to successively add the servo pattern into the whole surface on the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.