Disk drive interface combining a magneto-resistive read and inductive write circuits
US5430584A · kind A · utility
26Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1991 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Oct 18, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A single integrated circuit chip provides an interface to both magneto-resistive read elements and inductive write elements of a plurality of read/write heads of a disk drive mass data storage system. Separate multiplexers and current sources are used for the read and write channels. The read element of a head selected by one of the multiplexers is preamplified on the chip. A write driver circuit is also provided, being connected to a write element of a head selected by the other of the multiplexers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.