Optical communication system, optical communication apparatus and optical communication method
US11811448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2020 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Mar 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0287
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical communication system, an optical communication device and a plurality of optical transmission devices are loop-connected via transmission line. An optical signal transmission unit of the optical communication device, when no communication interruption occurs in the transmission line, outputs an optical signal addressed to a communication destination device that communicates with the own device to a transmission line connected to either one of two neighboring optical transmission devices. The optical signal transmission unit outputs, at the time of communication interruption occurring in the transmission line, an optical signal addressed to the communication destination device to both of transmission lines connected to respective two neighboring optical transmission devices. A branch unit of the optical transmission device branches the optical signal input from a neighboring device, and outputs branched optical signals to another neighboring device and a subordinate communication destination device of the own device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.