Adaptive sector seeking method for reducing disk drive power consumption
US6038096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1997 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Aug 28, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method of reducing power consumption in a disk drive system by controlling movement time of a read/write head from a present track and present sector to a target track and target sector. The method includes the steps of determining a first variable indicative of a first time period in which to move the actuator head from the present track to the target track along a radial arc traced by the movement of the actuator head and determining a second variable indicative of a second time period measured from the present servo sector to when the target servo sector advances to the radial arc. The actuator head is moved at a first rate substantially equal to the first time period if the first variable and the second variable are equal. The actuator head is moved at a second, slower rate if the first variable and the second variable are not equal. Moving the actuator head at a slower rate reduces power consumption and increases battery life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.