Magnetic transducer head utilizing magnetoresistance effect
US4679107A · kind A · utility
16Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1984 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Aug 23, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/465
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head utilizing the magnetoresistance effect comprising a magnetoresistance effect element and a conductor for applying a bias magnetic field to the element by being supplied with a bias current. The conductor is further supplied with a decaying alternating current superimposed on the bias current in advance of the playback operation, so that the hysteresis effect of the magnetic circuit is cancelled and the invariable output characteristics of the magnetic head are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.