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:
Mar. 06, 2018
Filed:
Feb. 04, 2016
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventors:
Inwoong Kim, Allen, TX (US);
Olga Vassilieva, Plano, 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 ...
H04B 10/08 (2006.01); H04B 17/00 (2015.01); H04B 10/12 (2006.01); H04B 10/00 (2013.01); H04J 14/02 (2006.01); H04B 10/079 (2013.01); H04B 10/2543 (2013.01);
U.S. Cl.
CPC ...
H04J 14/0271 (2013.01); H04B 10/07953 (2013.01); H04B 10/2543 (2013.01); H04J 14/0257 (2013.01);
Abstract
Methods and systems may estimate nonlinear penalties for optical paths using spectral inversion in optical transport networks. Certain values of nonlinear transfer functions for nonlinear penalty estimation may be pre-calculated for optical paths between given nodes. When an optical path computation for using spectral inversion between a given source node and a given destination node is desired, the pre-calculated values may be concatenated for improved computational efficiency.