Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akihiko Ichikawa0
Hiroshi Nishimoto0
Katsuhiko Hakomori0
Date of Patent
April 19, 2011
Patent Application Number
11045486
Date Filed
January 31, 2005
Patent Primary Examiner
Patent abstract
After implementing a scrambler upon an electric signal of digital signals to be transmitted to a user terminal, this electric signal is converted into a digital optical signal, and an analog optical signal and this digital optical signal are multiplexed by wavelength division multiplexing, thereby reducing influence of cross-talk interference that is exerted on the analog optical signal by the digital optical signal.
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