Magnetic disk device, method of controlling magnetic disk device, and computer program product
US12277956B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 26, 2024 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Jan 26, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a magnetic disk device includes a first MA amplifier that drives a first micro actuator that positions a corresponding magnetic head, a second micro actuator that positions a corresponding magnetic head, a second MA amplifier that drives the second micro actuator, and a controller that, when performing switching from an MA amplifier of a switching source in an on state to an MA amplifier of a switching destination in an off state, starts up the MA amplifier of the switching destination while maintaining the MA amplifier of the switching source in the on state, and performs the switching from the MA amplifier of the switching source to the MA amplifier of the switching destination after a predetermined time elapses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.