Method and apparatus for multi-channel servo demodulation
US10276198B1 · kind B1 · utility
10Cited by
8References
20Claims
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Key dates
| Filing date | Dec 20, 2017 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59683
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This disclosure describes apparatuses and techniques for multi-channel servo demodulation. Multiple servo demodulation channels enable additional information to be obtained during the self-servo writing process, such as relative positions of multiple read heads and tracking of multiple servo patterns. This additional information enhances accuracy for self-servo writing and can lead to higher recording densities in media drives, and thus more storage with little or no additional cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.