Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2004-07-26
2009-11-10
Wang, Quan-Zhen (Department: 2613)
Optical communications
Transmitter and receiver system
Including compensation
C398S152000
Reexamination Certificate
active
07616900
ABSTRACT:
By comprising a unit2making the adjustment related to degradation compensation of a plurality of signals with each wavelength made after multiplexing the signals, a unit3multiplexing the outputs of a plurality of units2, a unit4compensating for the waveform degradation of the output of the unit3, a unit5selecting a component with one of a plurality of wavelengths from a part of the output of the unit4and a unit6detecting the degree of signal degradation from the output of the unit5and controlling the adjustment by the unit2corresponding 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.
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Notice of Rejection for corresponding Japanese Application 2004-066193; dated Mar. 31, 2009.
Ishikawa George
Isomura Akihiko
Rasmussen Jens C.
Fujitsu Limited
Staas & Halsey , LLP
Wang Quan-Zhen
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