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:
Sep. 08, 2026
Filed:
Jan. 16, 2024
Nec Corporation, Tokyo, JP;
Keiichi Matsumoto, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A monitoring system includes a monitoring device including an optical transmitter and an optical receiver, an optical repeater, and a first MCF transmission path and a second MCF transmission path, each of the paths includes cores, and connects the monitoring device and the optical repeater with each other via the plurality of cores, the optical transmitter generates an optical pulse, and inputs the optical pulse to a first core included in the cores of the first MCF transmission path, the optical repeater loops-back the optical pulse being received from the first core to a second core included in the cores of the second MCF transmission path, and the optical receiver receives the optical pulse being looped-back, as an optical reception pulse, from the cores of the second MCF transmission path, and calculates a corrected reception level, based on the optical reception pulse.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile