Preamp reader design for high resistance read heads
US6700719B2 · kind B2 · utility
3Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Dec 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A differential circuit to read differential data from a disk by a voltage bias includes a read circuit to read the differential data from the disk by maintaining the voltage bias by a first transistor and a second transistor, the first transistor being positioned in a first current path to maintain a first current and the second transistor being positioned in a second current path to maintain a second current. The first current is approximately equal to the second current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.