Actuator driving apparatus and magnetic disk drive system with a smaller number of high power amplifiers than actuators
US4851939A · kind A · utility
6Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1987 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | May 11, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic disk drive apparatus having a plurality of actuators, or a magnetic disk drive system constructed of a plurality of head disk assemblies (HDA's); a magnetic disk drive apparatus or system in which the actuators included in the above apparatus or system can be arbitrarily and selectively coupled with a plurality of access control circuits and high power amplifiers that are smaller in number than the actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.