Whitening of data-dependent, non-stationary noise in an inter-symbol interference channel detector
US7471746B2 · kind B2 · utility
3Cited by
10References
19Claims
0Family size
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Key dates
| Filing date | Oct 28, 2004 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Dec 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/10296
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A decoder includes cascaded lattice filters that receive encoded data and include adaptive inputs and output taps. A tap control couples a selected output tap to a viterbi input as a function of a viterbi output. A noise adaptation circuit provides adjustment to the adaptive inputs as a function of the viterbi output to whiten non-stationary noise that is received with the encoded data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.