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:
May. 19, 2026
Filed:
Jun. 25, 2021
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Wataru Kohno, Tokyo, JP;
Tomoyuki Hino, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 11/00 (2006.01); G01D 5/353 (2006.01); G01H 9/00 (2006.01);
U.S. Cl.
CPC ...
G01M 11/3145 (2013.01); G01D 5/35358 (2013.01); G01D 5/3537 (2013.01); G01H 9/004 (2013.01);
Abstract
The optical fiber sensor includes a setting unit which sets a section to be evaluated set in the optical fiber to one of a first section and a plurality of second sections, each of which is shorter than the first section, an extraction unit which extracts a state change of light from the optical fiber, and a detection unit which detects a change in the surrounding environment based on time-series data of the state change of light in the section to be evaluated.