Retrieving data from a storage device using programmable filter and equalizer
US6542451B1 · kind B1 · utility
2Cited by
84References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1997 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | May 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2525
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An equalizer for producing an equalized signal from an input signal. The input signal has a DC component. The equalizer includes a programmable filter and equalizer. A detector for generating a threshold signal from a preprocessed signal. The preprocessed signal is generated from the equalized signal. A comparator for comparing the preprocessed signal to the threshold signal to produce an output signal. A tracking device for tracking the DC component from the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.