Optical wavelength multiplexing FSK modulation method
US7421209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Oct 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/5563
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical wavelength multiplexing frequency shift keying modulation system. The system includes an optical wavelength multiplexing signal acquisition unit for outputting an optical wavelength multiplexing signal. A n optical frequency shift keying modulation unit acquires an optical frequency shift keying signal, including an upper side band signal and a lower side band signal, by performing frequency modulation to the optical wavelength multiplexing signal output from the optical wavelength multiplexing signal acquisition unit. An optical frequency shift keying signal separation unit separates the optical frequency shift keying signal output from the optical frequency shift keying modulation unit into an upper side band signal and a lower side band signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.