Method, apparatus and program storage device for magnetic disk drive protection
US7142385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Dec 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, apparatus and program storage device for magnetic disk drive protection is provided. A stable position data storage stores stable-state information representing a magnetic disk drive in an operating environment that satisfies a certain condition. An acceleration sensor senses changes in acceleration acting on the magnetic disk drive and a rest-state measuring unit determines whether the magnetic disk drive is in a state of rest based on information acquired by the acceleration sensor. An operating state determination unit, in response to a first determination by the rest-state measuring unit that the magnetic disk drive is in a state of rest, determines when the state of rest corresponds to the stable-state information stored in the stable position data storage, and sets a detection sensitivity to a sign that which indicates an impending shock to the magnetic disk drive based on a result of a second determination. A magnetic head operation controller controls operation of the magnetic disk drive including retraction of a magnetic head based on the detection sensitivity set by the operating state determination unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.