Magnetic disk device and control method for magnetic disk device
US10319401B1 · kind B1 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Sep 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4826
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk device according to an embodiment includes: a head slider; a magnetic head provided in the head slider; a heater provided in the head slider; and a controller that determines, in seek operation of the magnetic head, a preheat start scheduled position from a remaining seek distance at which a time required for preheating of the head slider can be secured, the controller starting the preheating from the preheat start scheduled position in a case where no bump exists in an area from the preheat start scheduled position to a seek target position, the controller changing a preheat start position to an arbitrary position in an area from the bump to the seek target position in a case where the bump exists in the area from the preheat start scheduled position to the seek target position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.