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. 12, 2017
Filed:
May. 12, 2016
Applicant:
Huawei Marine Networks Co., Ltd., Tianjin, CN;
Inventors:
Assignee:
Huawei Marine Networks Co., Ltd., Tianjin, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); G02B 6/293 (2006.01);
U.S. Cl.
CPC ...
H04J 14/0212 (2013.01); G02B 6/29382 (2013.01); H04J 14/021 (2013.01); H04J 14/0205 (2013.01); H04J 14/0215 (2013.01); H04J 14/0221 (2013.01); H04J 14/0291 (2013.01);
Abstract
Embodiments of the present invention provide a reconfigurable optical add-drop multiplexer apparatus, and relate to the field of communications, so as to solve the problem of inconvenient line failure detection. The ROADM apparatus includes: a first ROADM, a second ROADM, one splitting coupler, four optical amplifiers, and four couplers. The embodiments of the present invention are used in a communications line architecture.