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:
Dec. 31, 2024
Filed:
Jul. 05, 2019
Applicant:
Nec Corporation, Tokyo, JP;
Inventor:
Takashi Kojima, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); G06V 20/52 (2022.01);
U.S. Cl.
CPC ...
G01H 9/004 (2013.01); G06V 20/52 (2022.01); G06F 2218/12 (2023.01);
Abstract
An optical fiber sensing system according to the present disclosure includes an optical fiber (A) configured to detect a vibration in underground, an acquisition unit () configured to acquire, from the optical fiber (A), an optical signal on which the vibration detected by the optical fiber (A) is superimposed, and an identifying unit () configured to identify a suspicious action in the underground based on a vibration pattern included in the optical signal acquired by the acquisition unit ().