US Patent 7970286 Optical transmission device
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Patent abstract
In a wavelength-division multiplexing communications system including a plurality of optical transmission devices having an optical amplifier, downstream optical transmission devices transmit gain wavelength characteristic information of an optical amplifier in each of the downstream optical transmission devices to an upstream optical transmission device. The upstream optical transmission device controls gain wavelength characteristics on the basis of the received gain wavelength characteristic information.
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Patent Inventor Names
Taizo Maeda0
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US Patent 07970286 Optical transmission device US Patent 7970286 Optical transmission device
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Patent Number
07970286
Patent Number
7970286
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US Patent 07970286 Optical transmission device
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Patent jurisdiction
Patent number
07970286
Date of patent
June 28, 2011
Patent application number
12543858
Date Filed
August 19, 2009
Patent primary examiner
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