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.

Patent No.:

US 9871580 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 16, 2018

Filed:

Apr. 11, 2016
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Yasuki Fujii, Kawasaki, JP;

Takao Naito, Musashino, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/038 (2013.01); H04B 10/032 (2013.01); H04B 10/035 (2013.01); H04B 10/275 (2013.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04B 10/038 (2013.01); H04B 10/032 (2013.01); H04B 10/035 (2013.01); H04B 10/275 (2013.01); H04J 14/0283 (2013.01); H04J 14/0287 (2013.01); H04J 14/0295 (2013.01);
Abstract

A transmission apparatus being one of a plurality of transmission apparatuses included in a ring network, including: a processor configured to: receive a specified message from a first transmission apparatus, the specified message being for setting loopback for at least one wavelength in a ring network, the specified message being transmitted when a failure of at least one optical signal having the at least one wavelength is detected in a specified link of the ring network, and set a loopback to a switch, the loopback being set for a specified wavelength of the at least one wavelength when a specified optical signal having the specified wavelength is terminated by the switch and converted to an electrical signal and when the specified optical signal having the specified wavelength is not terminated and not converted to an electrical signal by any apparatus from a second transmission apparatus to the specified link.


Find Patent Forward Citations

Fujii, Yasuki. (2018). Transmission apparatus and network control method (U.S. Patent No. 9871580). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9871580

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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