Disk drive with improved spin-up control
US9147428B1 · kind B1 · utility
0Cited by
338References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2014 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Sep 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed comprising a head actuated over a disk, and a spindle motor operable to rotate the disk. The disk drive comprises control circuitry configured to a rotation speed of the spindle motor, generate a gain as a function of the measured rotation speed, wherein the function comprises a polynomial having a degree greater than one, and spin-up the spindle motor based on the gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.