Magnetic disk drive control apparatus and method
US4458273A · kind A · utility
27Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1981 |
| Grant date | Jul 3, 1984 |
| Priority date | — |
| Expiry date | Apr 28, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microprocessor for control of a disk drive is shown which utilizes status signals passed back to the processor indicating the status of operation of the drive. A clock is provided for precise measurement of the elapsed time between consecutive read or write operations and for stopping the drive motor after a specified delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.