Biasing for magnetic circuits
US4631604A · kind A · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1984 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Dec 24, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic circuit, such as used in a magnetic recording head, or with a Hall-effect device, is biased by applying signals having noise-like properties to the magnetic circuit. Since the biasing signals will be effectively uncorrelated with other signals being applied to the magnetic circuit, the biasing signals cannot introduce an offset in the applied signals which might otherwise cause distortion. In addition, the spectrum of the biasing signals is broadband and of low amplitude. As a result, the biasing signals are unlikely to cause interference with other nearby electrical components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.