Equalizer with adaptive pre-filter
US6775322B1 · kind B1 · utility
24Cited by
7References
33Claims
0Family size
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Key dates
| Filing date | Aug 14, 2000 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Jul 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03605
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computationally efficient method for computing the filter coefficients for a prefilter in a decision feedback equalizer solves linear equations using a fast Toeplitz algorithm. Computations performed to compute the filter coefficients for the right half burst may be used to compute the prefilter for the left hand burst, thereby reducing the number of computations. Also, a square root-free algorithm may be used to solve the system of linear equations, further reducing computational complexity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.