Disk drive detecting when head is on ramp
US8786976B1 · kind B1 · utility
51Cited by
66References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Jun 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed comprising a head actuated over a disk surface, the head comprising a fly height actuator for controlling a fly height of the head, and a ramp for parking the head. A ramp procedure is executed by applying a control signal to the fly height actuator to decrease the fly height and receiving a corresponding fly height signal, and detecting whether the head is on the ramp in response to the fly height signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.