Frequency domain equalizer for optical communications
US9917712B2 · kind B2 · utility
1Cited by
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10Claims
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Key dates
| Filing date | Mar 14, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Apr 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/6162
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method decodes an optical signal transmitted over an optical channel from a transmitter to a receiver. The receiver receives the transmitted optical signal to produce a digital signal which is filtered in the frequency domain for compensating static effects and/or dynamic effects. The filtering is performed in the frequency domain, while the frequency coefficients of the filter are updated in the time domain by updating at least some of time coefficients of the filter and transforming the time coefficients into the frequency domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.