Ramp detection during servo-writing of a disk for a disk drive
US7869155B1 · kind B1 · utility
115Cited by
13References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2007 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Jun 8, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59638
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A servo writer to detect a ramp is disclosed. The servo writer includes a head positioner to position a head of an actuator arm of a head disk assembly relative to a disk and a controller to: control the head positioner to move the head of the actuator arm toward a ramp of the disk; determine a head positioner value generated by the head positioner to move the head; and detect the ramp when the head positioner value exceeds a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.