Magnetic transducer head utilizing magnetoresistance effect
US4703378A · kind A · utility
39Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Feb 26, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetoresistance effect type magnetic transducer head apparatus comprises a magnetoresistance effect sensing element, means for applying a high-frequency magnetic field to the sensing element, means for taking-out an output signal from the sensing element, a filter for taking-out the high-frequency component of the output, and another filter for rectifying the output and taking-out the low-frequency component. The magnetic head apparatus may be constructed as a digital circuit so that a multi-channel apparatus can be easily implemented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.