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Beijing, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Phase imbalance monitoring apparatus, amplitude imbalance monitorin...
Patent number
8,762,086
Issue date
Jun 24, 2014
Fujitsu Limited
Zhenning Tao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for bit and power allocation, and communicatio...
Patent number
8,687,646
Issue date
Apr 1, 2014
Fujitsu Limited
Huijian Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for adaptive blind equalization of PSK signal, equalizer and...
Patent number
8,666,262
Issue date
Mar 4, 2014
Fujitsu Limited
Meng Yan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Filter coefficient adjustment apparatus
Patent number
8,532,502
Issue date
Sep 10, 2013
Fujitsu Limited
Huijian Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for equalizing chromatic dispersion and digita...
Patent number
8,472,814
Issue date
Jun 25, 2013
Fujitsu Limited
Huijian Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Filter, coherent receiver device and coherent receiving method
Patent number
8,442,406
Issue date
May 14, 2013
Fujitsu Limited
Jianqiang Li
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency offset monitoring device and optical coherent receiver
Patent number
8,374,512
Issue date
Feb 12, 2013
Fujitsu Limited
Zhenning Tao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for frequency offset monitoring used in digita...
Patent number
8,103,177
Issue date
Jan 24, 2012
Fujitsu Limited
Huijian Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
FREQUENCY OFFSET MONITORING DEVICE AND OPTICAL COHERENT RECEIVER
Publication number
20130094852
Publication date
Apr 18, 2013
Fujitsu Limited
Zhenning TAO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR BIT AND POWER ALLOCATION, AND COMMUNICATIO...
Publication number
20110293031
Publication date
Dec 1, 2011
FUJITSU LIMITED
Huijian ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FILTER, COHERENT RECEIVER DEVICE AND COHERENT RECEIVING METHOD
Publication number
20110243561
Publication date
Oct 6, 2011
FUJITSU LIMITED
Jianqiang LI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR ADAPTIVE BLIND EQUALIZATION OF PSK SIGNAL, EQUALIZER AND...
Publication number
20110243575
Publication date
Oct 6, 2011
FUJITSU LIMITED
Meng YAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR EQUALIZING CHROMATIC DISPERSION AND DIGITA...
Publication number
20110064421
Publication date
Mar 17, 2011
FUJITSU LIMITED
Huijian ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FILTER COEFFICIENT ADJUSTMENT APPARATUS
Publication number
20100003028
Publication date
Jan 7, 2010
FUJITSU LIMITED
Huijian ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for frequency offset monitoring used in digita...
Publication number
20090245815
Publication date
Oct 1, 2009
FUJITSU LIMITED
Huijian ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Phase imbalance monitoring apparatus, amplitude imbalance monitorin...
Publication number
20090119043
Publication date
May 7, 2009
FUJITSU LIMITED
Zhenning Tao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Frequency offset monitoring device and optical coherent receiver
Publication number
20090080906
Publication date
Mar 26, 2009
FUJITSU LIMITED
Zhenning Tao
H04 - ELECTRIC COMMUNICATION TECHNIQUE