Inventor
FAN YANGYANG
CN24 patents
Patents
24 patentsUS10560195B2Feb 11, 2020
Bias control apparatus and method of modulator of optical transmitter and optical transmitter
FUJITSU LTD5 citations72
US9825708B2Nov 21, 2017
Compensation apparatus and method for inter-channel nonlinear damage
FUJITSU LTD2 citations72
US12328140B2Jun 10, 2025
Measurement apparatus and method for nonlinear damages in optical link
FUJITSU LTD0 citations62
US10404380B2Sep 3, 2019
Compensation apparatus for offset drift, received signal recovery apparatus and receiver
FUJITSU LTD1 citations62
US10345673B2Jul 9, 2019
Bias control apparatus and method of modulator of optical transmitter and optical transmitter
FUJITSU LTD1 citations62
US9160448B2Oct 13, 2015
Apparatus and method for estimating intra-channel nonlinear damage
FUJITSU LTD2 citations62
US11463172B2Oct 4, 2022
Apparatus and method for monitoring polarization change
FUJITSU LTD0 citations61
US10892962B2Jan 12, 2021
Inter-channel linear crosstalk estimation method and apparatus and receiver
FUJITSU LTD0 citations61
US10917171B2Feb 9, 2021
Fiber nonlinear noise monitoring method and apparatus and optical receiver
FUJITSU LTD0 citations52
US11563496B2Jan 24, 2023
Phase response measurement method and apparatus
FUJITSU LTD0 citations51
US11108464B2Aug 31, 2021
Apparatus and method for determining coefficients of fixed equalizer
FUJITSU LTD0 citations51
US10903911B2Jan 26, 2021
Apparatus and method for estimating polarization skew
FUJITSU LTD0 citations51
US9979471B2May 22, 2018
Method and apparatus for measuring a filtering characteristic, pre-equalizer and communication equipment
FUJITSU LTD0 citations51
US11777613B2Oct 3, 2023
Polarization change tracking apparatus, processing apparatus for received signal and methods thereof
FUJITSU LTD0 citations50
US11626930B2Apr 11, 2023
Polarization recovery apparatus and method thereof and optical receiver
FUJITSU LTD0 citations50
US11329724B2May 10, 2022
State of polarization tracking recovery method and apparatus
FUJITSU LTD0 citations50
US11070287B2Jul 20, 2021
Method and apparatus for establishing transmission impairment decomposition model for Raman amplified system and system
FUJITSU LTD0 citations50
US11057106B2Jul 6, 2021
Method and apparatus for monitoring modulation depth of dither signal and optical transmitter
FUJITSU LTD0 citations50
US10630526B2Apr 21, 2020
Estimation apparatus for IQ imbalance of optical transmitter, compensation apparatus for IQ imbalance of optical transmitter and electronic equipment
FUJITSU LTD0 citations41
US10574350B2Feb 25, 2020
Method and apparatus for estimating direct current bias of optical modulator and receiver
FUJITSU LTD0 citations41
US10230469B2Mar 12, 2019
Apparatus for measuring a filtering characteristic, pre-equalizer and optical communication equipment
FUJITSU LTD0 citations41
US10225010B2Mar 5, 2019
Method and apparatus for measuring a filtering characteristic, pre-equalizer and communication equipment
FUJITSU LTD0 citations41
US10116388B2Oct 30, 2018
Apparatus for measuring a filtering characteristic, pre-equalizer and communication equipment
FUJITSU LTD0 citations41
US10644791B2May 5, 2020
Impairment monitoring apparatus, impairment monitoring and compensating system and method
FUJITSU LTD0 citations34