Method for linearizing microactuator hysteresis for a disc drive
US6693763B2 · kind B2 · utility
10Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | May 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Linearizing hysteresis of a microactuator for a disc drive by modeling the microactuator with a first polynomial equation to provide a linear displacement response of the microactuator responding to an applied voltage, deriving a set of constants from a plurality of burst patterns for use with the first polynomial equation to provide a set of variables for use in resolving the second polynomial equation to provide a set of equations from which a set of constants can be derived for use by the second polynomial equation to provide a voltage to the microactuator to displace the microactuator by a predetermined incremental distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.