The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 08, 2019

Filed:

Apr. 30, 2018
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Masatake Miyabe, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04Q 11/00 (2006.01); H04B 10/075 (2013.01);
U.S. Cl.
CPC ...
H04B 10/075 (2013.01); H04Q 11/0062 (2013.01); H04J 14/021 (2013.01); H04J 14/022 (2013.01); H04J 14/0216 (2013.01); H04Q 2011/0083 (2013.01);
Abstract

A communication apparatus configured to communicate with a router included in a first network and a multiplexer that multiplexes a plurality of optical signals having different wavelengths transmitted from the communication apparatus, the communication apparatus comprising a memory, and a processor coupled to the memory and configured to transmit and receive a first signal to and from the router, transmit and receive a second signal to and from another communication apparatus in a second network through the multiplexer, the second signal having a transmission scheme different from the first signal, mutually convert the first signal and the second signal with each other, detect a first communication disabled state between the another communication apparatus and the communication apparatus, and transmit, to the router, a first detection signal for detecting adjacency relationship between the communication apparatus and the router when the first communication disabled state is detected.


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