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. 26, 2023
Filed:
Sep. 17, 2020
Nec Corporation, Tokyo, JP;
Takanori Inoue, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In order to measure the signal quality of each of optical signals transmitted/received via a plurality of transmission lines, an optical communication systemis provided with a dummy light sourcefor outputting dummy light, a switching meansfor outputting the dummy light to a first transmission line, and a light-receiving meansfor acquiring first signal quality from the dummy light received via the first transmission line, the switching meansswitching the output destination of the dummy light from the first transmission lineto a second transmission line, and the light-receiving meansacquiring second signal quality from the dummy light received via the second transmission line