Magneto-resistive biasing methods and systems
US7839593B1 · kind B1 · utility
2Cited by
4References
37Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 4, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A biasing device for a magneto-resistive element, including a first bias supply circuit coupled to the magneto-resistive element; and a first bias control circuit coupled to the first bias supply circuit, the first bias control circuit capable of controlling the first bias supply circuit to provide a first calibration mode bias signal during a calibration mode and a first operating mode bias signal during an operating mode, the first operating mode bias signal having a lower noise level than the first calibration mode bias signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.