Method and apparatus for performing a seek
US5119250A · kind A · utility
53Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Jun 15, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for performing a seek operation in a disk drive using current in the saturation mode to accelerate and decelerate the actuator arm. In a first embodiment, several measurements are made during the acceleration portion of the seek to estimate the deceleration available in saturation mode. In a second embodiment, the point at which the current is switched from acceleration current to deceleration current is adjusted based upon the position where the actuator arm comes within a desired amount of the velocity of a velocity profile assuming worst case conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.