Magneto-resistive asymmetry compensation loop
US6587292B1 · kind B1 · utility
33Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2000 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Apr 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-resistive asymmetry compensation system includes a linearizer (61) interposed in a data path and a control loop (63). The control loop uses signal estimates from an interpolated timing response unit (25) to derive a magneto-resistive asymmetry error. The error term is used to obtain a control scaling input to the linearizer. The linearizer functions to multiply the scaling multiple to the square of the input signal and then add it back to the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.