Method and apparatus for asymmetry correction in magnetic recording channels
US7203013B1 · kind B1 · utility
55Cited by
6References
5Claims
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Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jun 14, 2026 |
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 fASC (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.