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:
Jan. 17, 2017
Filed:
Apr. 13, 2016
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Gary Mak, San Francisco, CA (US);
Edgar Velez, Kanata, CA;
Assignee:
Ciena Corporation, Hanover, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/079 (2013.01); H04L 25/02 (2006.01); H04L 27/00 (2006.01); H04L 27/22 (2006.01); H04J 14/02 (2006.01); H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04B 10/0795 (2013.01); H04J 14/02 (2013.01); H04L 5/003 (2013.01); H04L 25/022 (2013.01); H04L 27/0014 (2013.01); H04L 27/223 (2013.01);
Abstract
The invention pertains to methods, apparatus, and systems for controlling the sub-carrier frequencies in an optical frequency division multiplex communication system by using a metric available from the sub-carrier modem's digital receive block as an indicator of cross-talk between sub-carriers and adjusting the sub-carrier frequency separation as a function of that metric.