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. 08, 2013
Filed:
Feb. 24, 2011
Kiyotoshi Noheji, Kawasaki, JP;
Noriaki Mizuguchi, Kawasaki, JP;
Kiyotoshi Noheji, Kawasaki, JP;
Noriaki Mizuguchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical receiver includes a dispersion mitigator configured to mitigate a wavelength dispersion value in an optical signal by using a set dispersion value, a phase difference signal generator configured to generate a phase difference signal by calculating the phase difference between a first clock signal included in an optical signal mitigated by the dispersion mitigator, and a second clock signal, a dispersion value adjuster configured to adjust the set dispersion value set in the mitigator, a controller configured to control fluctuations appearing in a phase difference signal generated by the phase difference signal generator when the dispersion value is adjusted by the dispersion value adjuster, and a clock generator configured to generate the second clock follow up the phase of the first clock, being based on the phase difference signal controlled by the controller.