Method and system for minimizing the error rate of a digital recording system by predicting the optimal bias current
US5390054A · kind A · utility
7Cited by
14References
8Claims
0Family size
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Key dates
| Filing date | Mar 12, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Mar 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital recording system utilizing a magnetoresistive transducer in a magnetic recording head. The system measures the amplitude of an output signal, E.sub.o, from the transducer for various bias currents as a recorded magnetic media passes by the head. The system then determines the bias current for which the output signal, E.sub.o, is maximized and multiplies that bias current by a suitable factor. The system then operates at the calculated bias current level, thereby minimizing the error rate of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.