Microactuator servo system in a disc drive
US6768610B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1997 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Mar 13, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/24
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus position a plurality of data heads relative to a plurality of surfaces of at least one disc in a disc drive. One of the plurality of data heads corresponds to each of the plurality of surfaces. The data heads are provided for writing information to the surfaces and reading information from the surfaces. Each of the data heads may be simultaneously positioned relative to the corresponding surfaces using the embedded servo information. Information can be simultaneously transferred relative to the corresponding surfaces using the plurality of data heads. Uninterrupted sequential data transfers may also be executed without servo overhead. Further, an apparatus is provided for accomplishing such servo control, as is a method of accomplishing model-based servo control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.