Multiple actuator disk drive
US5223993A · kind A · utility
70Cited by
20References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1989 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Nov 3, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S360/903
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multiple actuator disk drive utilizes multiple heads, associated with respective ones of multiple actuators, to read data from and write data to all tracks on the surface of a disk. The positioning of each head by the respective actuators is controlled by embedded servo-information recorded in the data tracks. The data tracks have a density of greater than 2000 tracks per inch. Utilizing two actuators provides access times which are reduced with respect to the access times provided by disk drives having a single actuator and an increased data transfer rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.