Method and apparatus for writing servo management information in a disk drive
US7538965B2 · kind B2 · utility
0Cited by
9References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 27, 2007 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Jun 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59638
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, in a disk drive having a disk medium on which servo data is recorded, servo-write management information is recorded on the disk medium, in the form of binary data based on the 0 or 180 degrees out of phase pattern composed of the servo burst signals included in the servo data and being out of phase. The disk drive includes a servo-data reproducing unit that reproduces the servo-data and the servo-write management information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.