Transmission system, transmission device, and transmission method
US10904648B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Nov 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/172
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmission device, includes a first wavelength converter configured to convert a second wavelength-multiplexed signal in a first wavelength band to a second wavelength band different from the first wavelength band, and a multiplexer configured to transmit, after the conversion, a wavelength-multiplexed signal obtained through multiplexing of a first wavelength-multiplexed signal in the first wavelength band, a first supervisory control signal light ray that is a control signal for the first wavelength-multiplexed signal, the second wavelength-multiplexed signal in the second wavelength band, and a second supervisory control signal light ray that is a control signal for the second wavelength-multiplexed signal, wherein the first supervisory control signal light ray and the second supervisory control signal light ray each have a wavelength in a wavelength band different from the first wavelength band and the second wavelength band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.