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:
Nov. 10, 2009
Filed:
Jul. 26, 2004
Akihiko Isomura, Kawasaki, JP;
Jens C. Rasmussen, Kawasaki, JP;
George Ishikawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
By comprising a unitmaking the adjustment related to degradation compensation of a plurality of signals with each wavelength made after multiplexing the signals, a unitmultiplexing the outputs of a plurality of units, a unitcompensating for the waveform degradation of the output of the unit, a unitselecting a component with one of a plurality of wavelengths from a part of the output of the unitand a unitdetecting the degree of signal degradation from the output of the unitand controlling the adjustment by the unitcorresponding to the selected frequency so as to reduce the degree, components disposed for each wavelength in an optical transmission system adopting a wavelength-division multiplexing method can be shared, and the size and cost of an compensator can be reduced.