Multilevel amplitude and phase encoded signal generation
US7558487B2 · kind B2 · utility
15Cited by
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11Claims
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Key dates
| Filing date | Sep 25, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jun 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/5561
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating multilevel amplitude and phase encoded signals using a pair of 1:N beam splitter/combiner(s) having a pre-defined splitting distribution and an array of zero-biased, Mach-Zehnder Modulators configured for phase modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.