System including a hard disk drive and stray magnetic field sensor and associated method
US7595958B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 6, 2006 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Feb 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B31/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system includes a host device and a disk drive interfaced with the host device are described as well as an associated method. The disk drive includes a magnetic media for storing information using an actuator arrangement to perform a data access by moving at least one head proximate to the magnetic media. The information may be subject to corruption when the disk drive is exposed, during the data access, to a given stray magnetic field having a given minimum magnetic field intensity. The given stray magnetic field will not corrupt the information on the magnetic media with the actuator arrangement positioned away from the magnetic media. A stray magnetic field protection arrangement is configured for detecting an ambient magnetic environment for use in causing the actuator arrangement to park responsive to the detection of at least the given minimum magnetic field intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.