Method and apparatus for asymmetry correction in magnetic recording channels
US7079342B1 · kind B1 · utility
26Cited by
5References
11Claims
0Family size
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Key dates
| Filing date | Oct 27, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Asymmetry correction for an MR read head in a magnetic recording channel employs an exponential function to correct MR read head asymmetry. The asymmetry correction function has the form ƒASC(y)=y−q(eay+e−ay−2), wherein a is a parameter that can be adjusted for optimal channel performance, and q is an asymmetry correction coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.