Magnetic disc apparatus
US9905256B1 · kind B1 · utility
2Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2017 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jul 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, servo patterns different in servo pattern frequency are recorded in zones divided in a radial direction on a magnetic disc, and the servo patterns in the adjacent zones overlap each other in a predetermined area from a zone servo boundary between the zones, and a determination boundary where it is determined to execute a crossing process is set within the overlapping area of the servo patterns upstream from the zone servo boundary, based on position information on a seek destination and the present position of the magnetic head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.