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:
Jun. 18, 2019
Filed:
Feb. 02, 2018
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Mariko Kase, Isehara, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/40 (2013.01); G02B 6/42 (2006.01); H04B 10/079 (2013.01); H04B 10/25 (2013.01);
U.S. Cl.
CPC ...
H04B 10/40 (2013.01); G02B 6/42 (2013.01); H04B 10/079 (2013.01); H04B 10/2503 (2013.01);
Abstract
There is provided an optical transceiver including a laser light source configured to transmit a first optical signal via an optical transmission member having optical fibers, a photodetector configured to receive a second optical signal via the optical transmission member, a visible light source configured to emit visible light which is incident to the optical transmission member, and a control circuit configured to, when the photodetector detects not to receive the second optical signal, control the laser light source to stop transmitting the first optical signal and the visible light source to start emitting the visible light.