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.

Date of Patent:
Jul. 21, 2015

Filed:

Jul. 30, 2013
Applicant:

Fujitsu Limited, Kawasaki, JP;

Inventors:

Jun Matsui, Kawasaki, JP;

Takatoshi Yagisawa, Kawasaki, JP;

Tsuyoshi Yamamoto, Atsugi, JP;

Satoshi Ide, Yokohama, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/12 (2006.01); H04B 10/00 (2013.01); H04B 10/27 (2013.01); H04B 10/073 (2013.01);
U.S. Cl.
CPC ...
H04B 10/27 (2013.01); H04B 10/073 (2013.01);
Abstract

An optical transmission system including a transmitting unit to transmit an optical main signal, a receiving unit to receive the optical main signal, and a transmission line through which the optical main signal is transmitted, the optical transmission system includes: an optical transmitter unit configured to be activated or inactivated based on a control signal so as to transmit the control signal, the optical transmitter being included in the transmitting; and an optical receiver configured to receive light with the activate state or the inactivate state of the optical transmitter the optical receiver being included in the receiving unit, wherein the receiving unit regenerates the control signal, based on a power of the received light.


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