Predictive characterization of adjacent track erasure in recording media
US8125724B1 · kind B1 · utility
77Cited by
10References
20Claims
0Family size
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Key dates
| Filing date | Mar 11, 2010 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | May 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wide area track erasure (WATER) rate of change is determined from a model generated from a plurality of track erasure measurements performed on a magnetic recording media. A model of the change in noise amplitude for an off-track position as a function of the number of aggressor track writes employed in the track erasure measurements is generated. In a log-linear space a linear fit of the change in noise amplitude with respect to the number of aggressor track writes yields a rate of noise amplitude change (dB/decade) which may be utilized to rank magnetic recording media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.