Data storage device dynamically reducing coast velocity during seek to reduce power consumption
US9208815B1 · kind B1 · utility
3Cited by
347References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Oct 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a disk comprising a plurality of tracks, and an actuator configured to actuate a head over the disk. While seeking the head from a first track toward a second track, a velocity of the head over the disk is measured, and a deceleration distance and a deceleration time is generated based on the measured velocity. A coast velocity is generated based on the measured velocity, the deceleration distance, and the deceleration time, and a control signal applied to the actuator is adjusted based on the measured velocity and the coast velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.