Microprocessor controlled rigid disk file subsystem
US4819153A · kind A · utility
24Cited by
17References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1985 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jun 5, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0673
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved control system for a disk file includes head position control circuitry including at least one servo loop for controlling an electromechanical head positioner relative to a rotating data storage disk, a data controller for controlling reading and writing of data blocks from and to a storage surface of the disk, an interface circuit for connecting the disk file directly to data, address and control buses of a host computer, and a single microprocessor programmed to supervise operations of the head position control circuitry, data controller and interface circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.