Inventor · disambiguated record
Zhuhong Zhang
Also filed as: ZHANG ZHUHONG · ZHANG ZHUHONG P
70 granted patents·4 pending applications·229 citations·filing 2001–2023
98Inventor score
Top patents by PatentIndex Score
74 records- 0195US9385896B1Method and apparatus for low-complexity quasi-reduced state soft-output equalizerHUAWEI TECH CO LTD·Filed 2015·Granted Jul 5, 2016·23 cites·25 claims
- 0291US9794657B1System and method for optical switchingJIANG ZHIPING·Filed 2016·Granted Oct 17, 2017·11 cites·21 claims
- 0390US11838123B2Bit-channel combiner and combined probabilistic constellation shaping and polar encoderHUAWEI TECH CO LTD·Filed 2022·Granted Dec 5, 2023·3 cites·14 claims
- 0490US10491432B1System and method for turbo equalization and decoding in a receiverMEDRA AHMED MOHAMED IBRAHIM·Filed 2018·Granted Nov 26, 2019·13 cites·24 claims
- 0589US11277207B1Apparatus and method for in-phase and quadrature skew calibration in a coherent transceiverNG WING CHAU·Filed 2020·Granted Mar 15, 2022·5 cites·19 claims
- 0688US11791844B2Systems and methods for using special nodes for polar encoding in polar codesEBRAHIMZAD HAMID·Filed 2021·Granted Oct 17, 2023·2 cites·14 claims
- 0788US11770276B1Systems and methods for compensating polarization dependent loss (PDL) in dual polarized communication networkHUAWEI TECH CO LTD·Filed 2022·Granted Sep 26, 2023·2 cites·20 claims
- 0888US9537683B1Method and apparatus for residual phase noise compensationZAMANI MAHDI·Filed 2015·Granted Jan 3, 2017·10 cites·28 claims
- 0988US9231787B1Method and apparatus with improved estimation accuracy and robustness for fine frequency offset estimation in coherent receiversHUAWEI TECHNOLOGIES CANADA CO LTD·Filed 2015·Granted Jan 5, 2016·9 cites·20 claims
- 1088US8538279B2Method and apparatus for carrier phase estimation and correction in a coherent optical systemLI CHUANDONG·Filed 2011·Granted Sep 17, 2013·10 cites·31 claims
- 1187US12015480B2Systems and methods for using not perfectly polarized bit channels in parallel polar codesHUAWEI TECH CO LTD·Filed 2022·Granted Jun 18, 2024·1 cites·18 claims
- 1287US11515964B2Systems and methods for using not perfectly polarized bit channels in parallel polar codesEBRAHIMZAD HAMID·Filed 2021·Granted Nov 29, 2022·2 cites·16 claims
- 1387US9755864B1Fractionally spaced adaptive equalizer with non-integer samplingALI SHAH SYED FAISAL·Filed 2016·Granted Sep 5, 2017·13 cites·19 claims
- 1486US9438371B2Linear dispersion polarization-time codes and equalization in polarization multiplexed coherent optical systemFUTUREWEI TECHNOLOGIES INC·Filed 2015·Granted Sep 6, 2016·5 cites·14 claims
- 1585US9660845B2System and method for state reduction in trellis equalizers using bounded state enumerationHUAWEI TECH CO LTD·Filed 2015·Granted May 23, 2017·6 cites·20 claims
- 1685US9479260B2Single carrier flexible bit rate transceiver for coherent optical networkFUTUREWEI TECHNOLOGIES INC·Filed 2014·Granted Oct 25, 2016·8 cites·7 claims
- 1784US8340534B2Side band pilot tone for digital signal processing in polarization multiplexed coherent optical communication systemZHANG ZHUHONG·Filed 2010·Granted Dec 25, 2012·7 cites·9 claims
- 1883US8767575B2Method and apparatus for broadband carrier frequency and phase recovery in coherent optical systemZHANG ZHUHONG·Filed 2011·Granted Jul 1, 2014·9 cites·20 claims
- 1982US11271659B1Systems and methods for phase noise mitigation in optical superchannelsJANA MRINMOY·Filed 2020·Granted Mar 8, 2022·2 cites·20 claims
- 2082US9106503B1Method and apparatus for recovering time-domain hybrid modulated QAM signalsFUTUREWEI TECHNOLOGIES INC·Filed 2014·Granted Aug 11, 2015·6 cites·20 claims
- 2181US9503305B1Method for low complexity decision metric compression of higher-order square-QAM constellationHUAWEI TECH CO LTD·Filed 2015·Granted Nov 22, 2016·4 cites·24 claims
- 2280US9749056B2Method and system for discrete multi-tone transmission with multiple modulationsLI CHUANDONG·Filed 2015·Granted Aug 29, 2017·4 cites·18 claims
- 2380US9350450B2Bit loading for optical discrete multi-tone transmissionHUAWEI TECH CO LTD·Filed 2014·Granted May 24, 2016·5 cites·17 claims
- 2479US9473263B2Method and system for removing a pilot tone from an optical signalJIANG ZHIPING·Filed 2015·Granted Oct 18, 2016·3 cites·24 claims
- 2578US9998274B2Method and apparatus for robust clock recovery in coherent optical systemsHUAWEI TECH CO LTD·Filed 2016·Granted Jun 12, 2018·3 cites·20 claims
- 2677US11265019B1Parallel polar code with shared data and cooperative decodingHUAWEI TECH CO LTD·Filed 2020·Granted Mar 1, 2022·1 cites·20 claims
- 2777US11153139B1System, method and apparatus for Multi-Band Faster-than-Nyquist scheme-based communicationHUAWEI TECH CO LTD·Filed 2021·Granted Oct 19, 2021·1 cites·20 claims
- 2877US6697187B2Method and apparatus for Raman amplifier gain controlNORTEL NETWORKS LTD·Filed 2001·Granted Feb 24, 2004·17 cites·11 claims
- 2976US10686547B1Hybrid digital multi-band optical receiver and transmitterHUAWEI TECH CO LTD·Filed 2019·Granted Jun 16, 2020·2 cites·19 claims
- 3076US9608723B2Carrier-signal power ratio control in direct detection optical systemsHUAWEI TECH CO LTD·Filed 2014·Granted Mar 28, 2017·3 cites·28 claims
- 3174US10506311B2System and method for optical networkHUAWEI TECH CO LTD·Filed 2016·Granted Dec 10, 2019·2 cites·29 claims
- 3274US9602151B1Apparatus and method for transmitting and receiving wireless signals subject to a spectral maskZAMANI MAHDI·Filed 2015·Granted Mar 21, 2017·3 cites·16 claims
- 3372US9531472B2Coherent waveform conversion in optical networksFUTUREWEI TECHNOLOGIES INC·Filed 2014·Granted Dec 27, 2016·3 cites·20 claims
- 3471US8331803B2Clock recovery method for polarization multiplexed coherent optical communicationsLI CHUANDONG·Filed 2009·Granted Dec 11, 2012·4 cites·20 claims
- 3569US9641374B2Direct-detected orthogonal frequency-division multiplexing with dispersion pre-compensation digital signal processingHUAWEI TECH CO LTD·Filed 2015·Granted May 2, 2017·2 cites·18 claims
- 3669US9621391B2Methods and apparatuses to improve reception of direct detection optical signalsHUAWEI TECH CO LTD·Filed 2014·Granted Apr 11, 2017·2 cites·21 claims
- 3769US9300407B2Channel estimation for optical orthogonal frequency division multiplexing systemsFUTUREWEI TECHNOLOGIES INC·Filed 2013·Granted Mar 29, 2016·2 cites·20 claims
- 3868US10673528B1Methods and apparatuses for controlling optical signals in optical networksHUAWEI TECH CO LTD·Filed 2019·Granted Jun 2, 2020·1 cites·22 claims
- 3968US9112742B2Low-complexity, adaptive, fractionally spaced equalizer with non-integer samplingFUTUREWEI TECHNOLOGIES INC·Filed 2014·Granted Aug 18, 2015·2 cites·20 claims
- 4068US8738956B2Method and apparatus for updating a fractional time interval using time-domain interpolators in optical communicationsCHEN YUANJIE·Filed 2011·Granted May 27, 2014·4 cites·20 claims
- 4168US8737847B2Method and apparatus of using joint timing recovery for a coherent optical systemLI CHUANDONG·Filed 2012·Granted May 27, 2014·2 cites·22 claims
- 4268US8391726B2Method and apparatus for frame detection and polarization separationCHEN YUANJIE·Filed 2010·Granted Mar 5, 2013·3 cites·19 claims
- 4367US10574382B2Low cost intensity-modulated direct-detection (IMDD) optical transmitter and receiverHUAWEI TECH CO LTD·Filed 2018·Granted Feb 25, 2020·1 cites·20 claims
- 4466US10615881B2System and method for adaptive channel equalization in a time varying channelABUGHALIEH NASHAT·Filed 2019·Granted Apr 7, 2020·2 cites·20 claims
- 4566US9749723B2System and method for optical networkHUAWEI TECH CO LTD·Filed 2015·Granted Aug 29, 2017·1 cites·20 claims
- 4665US9705628B2Method and system for removing a pilot tone from an optical signalJIANG ZHIPING·Filed 2016·Granted Jul 11, 2017·1 cites·20 claims
- 4765US9025969B2Method with improved phase robustness in coherent detected optical systemLI CHUANDONG·Filed 2012·Granted May 5, 2015·2 cites·14 claims
- 4862US9432224B1Method and apparatus for low-complexity ISI estimation using sparse discontinuous time-domain pilotsHUAWEI TECH CO LTD·Filed 2015·Granted Aug 30, 2016·1 cites·22 claims
- 4961US9419719B2Transmitter apparatus and methodHUAWEI TECH CO LTD·Filed 2014·Granted Aug 16, 2016·1 cites·20 claims
- 5057US2025309996A1Optical receiver and signal processing methodHUAWEI TECH CO LTD·Filed 2023·Application pending·0 cites
Showing the top 50 of 74 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →