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:
Aug. 30, 2016
Filed:
Dec. 03, 2014
Applicant:
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04J 14/04 (2006.01); H04B 10/20 (2006.01); H04Q 11/00 (2006.01); H04B 10/275 (2013.01); H04B 10/032 (2013.01);
U.S. Cl.
CPC ...
H04Q 11/0005 (2013.01); H04B 10/032 (2013.01); H04B 10/275 (2013.01); H04Q 11/0062 (2013.01); H04J 14/0283 (2013.01); H04Q 2011/0052 (2013.01); H04Q 2011/0081 (2013.01);
Abstract
In an optical transmission system including at least one ring network configured by plural nodes, each node of the ring network is provided with the optical switch having connection configuration that the output in at least two directions of a signal input to the node is allowed and the output of the optical switch functions as input to another node included in the plural nodes.