Apparatus using a lengthened equalization target filter with a matched filter metric in a viterbi detector
US7286595B2 · kind B2 · utility
7Cited by
4References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2003 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Dec 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10296
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus that uses a lengthened equalization target filter with a matched filter metric in a Viterbi detector is disclosed. The equalization target includes a base partial response component, i.e., (1−D2), a fractional coefficient polynomial component to whiten the noise, i.e., (1+p1D+p2D2), and a time-reversed replica of the noise-whitening component. Thus, the time-reversed replica of the noise-whitening component comes from what was formerly a matched filter component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.