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.:
Date of Patent:
Oct. 01, 2024
Filed:
Jul. 08, 2020
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); G08B 21/18 (2006.01);
U.S. Cl.
CPC ...
G01H 9/004 (2013.01); G08B 21/18 (2013.01);
Abstract
An optical fiber sensing system and method assessing that an abnormality has occurred when a vibration pattern of an optical signal output from an optical fiber, that detects a vibration, is not already known. When the vibration pattern of the optical signal has not occurred in accordance with a predetermined event, and the vibration pattern is an abnormal vibration pattern, assessing that the abnormality has occurred at a position at which the optical fiber detected the vibration.