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Beijing, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus and method for measuring nonlinear signal-to-noise ratio,...
Patent number
11,881,906
Issue date
Jan 23, 2024
Fujitsu Limited
Xiaofei Su
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Performance estimation apparatus and method for nonlinear communica...
Patent number
11,626,928
Issue date
Apr 11, 2023
Fujitsu Limited
Xiaofei Su
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for monitoring change of polarization state re...
Patent number
10,962,714
Issue date
Mar 30, 2021
Fujitsu Limited
Yanhui Qi
G02 - OPTICS
Information
Patent Grant
Apparatus and method for monitoring change of polarization state re...
Patent number
10,742,316
Issue date
Aug 11, 2020
Fujitsu Limited
Tong Ye
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHOD FOR REAL-TIME MONITORING DELAY SKEW OF SUBSIGN...
Publication number
20250211329
Publication date
Jun 26, 2025
Fujitsu Limited
Tong YE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR DETERMINING OPTICAL PHASE DIFFERENCE OF SU...
Publication number
20250211330
Publication date
Jun 26, 2025
Fujitsu Limited
Tong YE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR DETERMINING SIGNAL CORRELATION
Publication number
20250211336
Publication date
Jun 26, 2025
Fujitsu Limited
Tong YE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR EVALUATING TRANSMISSION IMPAIRMENTS OF MUL...
Publication number
20240129049
Publication date
Apr 18, 2024
Fujitsu Limited
Xiaofei SU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD, APPARATUS AND SYSTEM FOR MEASURING NONLINEAR RELATED PARAME...
Publication number
20230266370
Publication date
Aug 24, 2023
Fujitsu Limited
Tong YE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD, APPARATUS AND SYSTEM FOR MEASURING NONLINEAR CORRELATION PA...
Publication number
20230261765
Publication date
Aug 17, 2023
Fujitsu Limited
Tong YE
G01 - MEASURING TESTING
Information
Patent Application
METHOD AND APPARATUS FOR GENERATING SIGNAL
Publication number
20230083930
Publication date
Mar 16, 2023
Fujitsu Limited
Ke ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR MEASURING NONLINEAR SIGNAL-TO-NOISE RATIO,...
Publication number
20230084994
Publication date
Mar 16, 2023
Fujitsu Limited
Xiaofei SU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL GENERATION DEVICE AND EQUALIZATION PROCESSING DEVICE
Publication number
20220385421
Publication date
Dec 1, 2022
Fujitsu Limited
Xiaofei SU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PERFORMANCE ESTIMATION APPARATUS AND METHOD FOR NONLINEAR COMMUNICA...
Publication number
20220166520
Publication date
May 26, 2022
Fujitsu Limited
Xiaofei SU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR MONITORING CHANGE OF POLARIZATION STATE RE...
Publication number
20200264368
Publication date
Aug 20, 2020
Fujitsu Limited
Yanhui QI
G02 - OPTICS
Information
Patent Application
APPARATUS AND METHOD FOR MONITORING CHANGE OF POLARIZATION STATE RE...
Publication number
20200106521
Publication date
Apr 2, 2020
Fujitsu Limited
Tong YE
H04 - ELECTRIC COMMUNICATION TECHNIQUE