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:
Jul. 04, 2017
Filed:
Feb. 12, 2015
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventors:
Qiong Zhang, Plano, TX (US);
Xi Wang, Murphy, TX (US);
Paparao Palacharla, Richardson, TX (US);
Motoyoshi Sekiya, Richardson, TX (US);
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04L 12/703 (2013.01); H04L 12/707 (2013.01); H04Q 11/00 (2006.01); H04L 12/721 (2013.01); H04L 12/24 (2006.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04J 14/021 (2013.01); H04J 14/0295 (2013.01); H04L 41/145 (2013.01); H04L 45/22 (2013.01); H04L 45/62 (2013.01); H04Q 11/0066 (2013.01); H04L 41/0668 (2013.01); H04Q 2011/0016 (2013.01); H04Q 2011/0081 (2013.01); H04Q 2011/0086 (2013.01);
Abstract
Optical transceiver sharing methods may be based on different ROADM node architectures for shared restoration in flexible grid optical networks. A ROADM node architecture with a pool of transceivers may improve transceiver utilization for backup optical paths, compared to a conventional ROADM node architecture. Sharing of transceivers in the pool for working and backup optical paths may further improve transceiver utilization. The methods disclosed herein may be used for multiple bit rates and different modulation formats.