Preventing damage to the heads and media in a removable cartridge and disk drive
US7408734B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2006 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Sep 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive uses the integration of the instantaneous velocities of the heads to estimate the distance the heads travel while latched. The disk drive can then determine if the heads are properly parked based solely on the distance traveled, thus avoiding the use of costly sensors. In the event that the heads cannot be properly parked due to some malfunction, the disk drive may store a special code in a nonvolatile memory. The special code directs the controller not to spin up or attempt to load the heads on any disk, preventing the disk from being damaged by the heads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.