Methods for measuring media performance associated with adjacent track interference
US9025264B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods for measuring media performance associated with adjacent track interference are provided. One such method includes iteratively writing data to a target track for each of a plurality of n frequencies, measuring a first signal amplitude and a first noise for each of the n sectors on the target track, writing an aggressor track pattern proximate the target track, measuring a second signal amplitude and a second noise for each of the n sectors on the target track, calculating a weighted sum for each of the signal amplitude measurements for each of the plurality of n frequencies, and calculating a weighted sum for each of the noise measurements for each of the plurality of n frequencies, and repeating the writing the aggressor track pattern, the measuring the second signal amplitude and the second noise, and calculating the weighted sums for preselected numbers of times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.