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:
Jul. 28, 2020

Filed:

Oct. 01, 2018
Applicant:

Hitachi Metals, Ltd., Tokyo, JP;

Inventors:

Yoshihiro Nakatani, Tokyo, JP;

Wataru Ohnuki, Tokyo, JP;

Kanako Suzuki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); G01M 11/00 (2006.01);
U.S. Cl.
CPC ...
G01M 11/3136 (2013.01); G01M 11/3145 (2013.01);
Abstract

Provided is an optical cable monitoring system for monitoring a health of optical cables including plural optical fibers. The system includes an optical power detector including a light power monitor, a failure determination unit and an alert signal generator, the light power monitor measuring light intensity of an extracted portion of communication light transmitted through each optical fiber and obtaining communication light intensity based on the measured light intensity, the failure determination unit determining presence of failure in each optical fiber based on the measurement result of the light power monitor, and the alert signal generator generating an alert signal when failure is determined to occur by the failure determination unit, and a monitoring device that receives an alert signal from the optical power detector.


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