Digital techniques to decode signals extracted from computer-readable storage media
US7982990B1 · kind B1 · utility
7Cited by
4References
20Claims
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Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Jan 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatuses, and systems describing digital techniques to decode signals extracted from computer-readable storage media. A digital signal that includes a digital representation of a repeatable runout signal having a magnitude and included in an analog signal is obtained. An estimate of the magnitude of the RRO signal based on the digital signal is determined. The estimate is provided for decoding the digital signal to extract the included data by adapting a detector gain target in accordance with the estimate. The detector gain target is a function of a desired amplitude of the RRO signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.