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. 27, 2016
Filed:
Feb. 11, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yuji Tamura, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An optical transmission system includes an optical transmission apparatus and an optical receiving apparatus. The optical transmission apparatus includes a transmitting unit that transmits signal light to the optical receiving apparatus through an optical transmission path, and a determining unit that determines continuity of the optical path using return light that returns from the optical receiving apparatus to the optical transmission apparatus through the optical transmission path, out of the signal light. The optical transmission apparatus includes a modulating unit that modulates a part of the signal light that is transmitted from the optical transmission apparatus through the optical transmission path to generate the return light, and an output unit that outputs the return light to the optical transmission apparatus through the optical transmission path.