Method and apparatus for servo track writing by track following on a dedicated servo disk on a fluid spindle bearing
US7158330B2 · kind B2 · utility
11Cited by
38References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Mar 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59633
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
What is disclosed is a method and apparatus for writing servo information on disks to be used in a hard disk drive assembly. In one embodiment, servo information is pre-written onto a disk using an offline servo track writer which employs a fluid dynamic bearing spindle to rotate the disk(s) during read/write operations. In another embodiment, servo information is written onto a disk by a method of track following on a reference disk using an offline servo track writer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.