Patent · US Active

Optical communication system, station-side device, subscriber device, and optical communication method

US10009137B2 · kind B2 · utility

0Cited by

0References

5Claims

0Family size

Assignee

NIPPON TELEGRAPH AND TELEPHONE CORPORATION · JP

Inventors

Tomoaki Yoshida · Yokosuka, JP
Shin KANEKO · Kyoto, JP
Shunji Kimura · Tokyo, JP

Key dates

Filing date	Jul 23, 2015
Grant date	Jun 26, 2018
Priority date	—
Expiry date	Jul 23, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2011/0086
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An optical communication system of the present invention switches a communication wavelength from a current communication wavelength to a auxiliary communication wavelength when an abnormality occurs in a communication wavelength between a station-side device and any one of a plurality of subscriber devices. Further, this optical communication system switches a communication wavelength used for communication between the subscriber device and the station-side device that perform communication using the auxiliary communication wavelength from the auxiliary communication wavelength back to the current communication wavelength when communication is recovered from an abnormality in the current communication wavelength.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.