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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuichi Akiyama0
Shoichiro Oda0
Takahito Tanimura0
Takeshi Hoshida0
Hisao Nakashima0
Date of Patent
August 21, 2012
0Patent Application Number
127192580
Date Filed
March 8, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In-phase signal light and quadrature-phase signal light obtained by mixing input light and local light with each other are converted into digital signals. The quality of a signal to be received is monitored with reference to information obtained through digital signal processing, and the power ratio between the input signal light and the local light that are to be mixed with each other are controlled on the basis of the result of the monitoring.
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