Disk drive using magnetic disk medium of discrete track recording
US7262931B2 · kind B2 · utility
10Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk medium of a discrete track recording (DTR) structure and a disk drive using the magnetic disk medium are disclosed. The magnetic disk medium of the DTR structure has positional-error detection servo patterns in a servo region, the positional-error detection servo patterns being formed of null servo patterns. This enables magnetic regions included in the servo region to occupy substantially 50% of the area of the servo region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.