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:
Jun. 23, 2015
Filed:
Jul. 19, 2013
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Kiyotoshi Noheji, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/61 (2013.01);
U.S. Cl.
CPC ...
H04B 10/6161 (2013.01);
Abstract
A digital coherent optical receiver executing coherent reception of a phase-modulated optical signal, includes: a moving average section configured to execute a moving average for received data obtained by sampling of the phase-modulated optical signal; a compensator configured to compensate a wavelength dispersion value of the phase data having been executed with the moving average; and a control section configured to determine a moving average frequency to be executed by the moving average section based on the compensated wavelength dispersion value.