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. 13, 2025
Filed:
Sep. 07, 2020
Nec Corporation, Tokyo, JP;
Yutaka Yano, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An optical fiber sensing system is acquired by adding an optical fiber sensing function to an optical communication cable system, and the optical fiber sensing is performed by an interrogator by sending probe light to an optical fiber, detecting backscattered light of the probe light, and performing sensing on environmental information around the optical fiber. A first sensing device installed at a remote place different from a terminal station of the optical communication cable system includes the interrogator, a power source unit configured to receive power via the optical communication cable system and supply power into the device, and a communication unit configured to communicate with a second sensing device. The interrogator generates sensing data at each point on the optical fiber by performing sensing on environmental information around the optical fiber being connected to the first sensing device.