Inventor · disambiguated record
Hwan Seok Chung
Also filed as: CHUNG HWAN SEOK
45 granted patents·27 pending applications·119 citations·filing 2003–2025
97Inventor score
Files withELECTRONICS & TELECOMMUNICATIONS RES INST36KOREA ELECTRONICS TELECOMM14CHUNG HWAN SEOK11CHANG SUN-HYOK6ELECT & TELECOMM RESEARCH INST2
Top patents by PatentIndex Score
72 records- 0191US11799552B2Optical network using optical amplifier in gain saturation regionELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2021·Granted Oct 24, 2023·2 cites·7 claims
- 0291US11515948B2Function split structure for mobile convergence optical transmission network and method of providing coordinated multi-point technology using the sameELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2021·Granted Nov 29, 2022·2 cites·14 claims
- 0391US9264171B2Multi-mode fiber-based optical transmission/reception apparatusKOREA ELECTRONICS TELECOMM·Filed 2014·Granted Feb 16, 2016·10 cites·18 claims
- 0487US11088774B2Method and apparatus for wavelength allocation for bidirectional optical accessELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2020·Granted Aug 10, 2021·2 cites·2 claims
- 0587US9900991B2Flexible printed circuit board for optical moduleELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Feb 20, 2018·5 cites·10 claims
- 0687US8009986B2Optical node for mesh-type WDM optical networkKOREA ELECTRONICS TELECOMM·Filed 2007·Granted Aug 30, 2011·12 cites·5 claims
- 0786US11212600B2Integrated dynamic bandwidth allocation method and apparatus in passive optical networksELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2020·Granted Dec 28, 2021·2 cites·10 claims
- 0886US9787395B2Control apparatus and method for monitoring optical fiber linkELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Oct 10, 2017·6 cites·17 claims
- 0985US8681885B2OFDM receiver and method for compensating for I/Q imbalanceCHUNG HWAN-SEOK·Filed 2010·Granted Mar 25, 2014·8 cites·3 claims
- 1082US8260154B2Digital equalization apparatus and method for coherent optical receiverCHANG SUN-HYOK·Filed 2009·Granted Sep 4, 2012·13 cites·5 claims
- 1181US8670679B2Coherent optical receiving apparatus and optical signal processing methodCHUNG HWAN SEOK·Filed 2011·Granted Mar 11, 2014·6 cites·14 claims
- 1279US10110979B2Passive optical network receiving and transmitting frame using multiple lanesELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Oct 23, 2018·3 cites·10 claims
- 1377US10200125B2Radio-over-fiber (RoF) transmission systemELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Feb 5, 2019·3 cites·1 claims
- 1476US8155521B2Multi-degree cross-connector system, operating method and optical communication network using the sameCHUNG HWAN-SEOK·Filed 2006·Granted Apr 10, 2012·7 cites·11 claims
- 1575US8995843B2Multicarrier based optical signal transmitting apparatus and optical signal receiving apparatusCHUNG HWAN SEOK·Filed 2012·Granted Mar 31, 2015·3 cites·7 claims
- 1675US8406625B2Apparatus and method for cross-connecting optical path in wavelength division multiplexing systemCHUNG HWAN-SEOK·Filed 2009·Granted Mar 26, 2013·5 cites·9 claims
- 1774US9998808B2Passive optical network (PON) supporting fragmentation function of media access control (MAC) frameELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Jun 12, 2018·2 cites·13 claims
- 1872US10110309B2Host unit and radio unit for distributed antenna system supporting large data trafficELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Oct 23, 2018·2 cites·10 claims
- 1972US7356220B2Apparatus and method for reducing signal noise and OCDMA receiver and methodKOREA ELECTRONICS TELECOMM·Filed 2006·Granted Apr 8, 2008·4 cites·16 claims
- 2071US8116623B2Multi-ring network operating method and systemCHUNG HWAN-SEOK·Filed 2008·Granted Feb 14, 2012·4 cites·27 claims
- 2170US10827240B2Cooperatiave dynamic bandwidth allocation method in mobile network with optical network, and device of performing the cooperatiave dynamic bandwidth allocation methodELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2019·Granted Nov 3, 2020·1 cites·15 claims
- 2270US10090928B2Analog optical transmission system using dispersion management techniqueELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Oct 2, 2018·2 cites·9 claims
- 2370US10027415B2Apparatuses and methods for transmitting and receiving control signal in analog radio-over-fiber (ROF)-based mobile fronthaulELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2016·Granted Jul 17, 2018·2 cites·11 claims
- 2469US10003427B1Bidirectional optical elementELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Jun 19, 2018·1 cites·14 claims
- 2568US10461874B2Optical line terminal efficiently utilizing multilane and passive optical network comprising the optical line terminalELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Oct 29, 2019·1 cites·8 claims
- 2668US9804327B1Phase error compensating apparatusELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Oct 31, 2017·1 cites·6 claims
- 2767US10461882B2Optical network unit for optical transmission in burst modeELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2018·Granted Oct 29, 2019·1 cites·20 claims
- 2867US10020890B2Host unit and remote radio head for distributed antenna system supporting large data trafficELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Jul 10, 2018·1 cites·9 claims
- 2967US8036527B2Apparatus and method for protection switching of optical channelKOREA ELECTRONICS TELECOMM·Filed 2008·Granted Oct 11, 2011·3 cites·4 claims
- 3067US2025379656A1Multichannel bidirectional optical transceiverELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2025·Application pending·0 cites
- 3165US7751710B2Photonic cross-connector system, WDM system using the same photonic cross-connector, and optical communication network based on the same WDM systemKOREA ELECTRONICS TELECOMM·Filed 2007·Granted Jul 6, 2010·2 cites·20 claims
- 3263US11800263B2Method of bandwidth allocation for transmitting mobile data and network deviceELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Granted Oct 24, 2023·0 cites·13 claims
- 3363US9240667B2Optical pumping apparatus for few-mode fiber amplificationKOREA ELECTRONICS TELECOMM·Filed 2014·Granted Jan 19, 2016·1 cites·17 claims
- 3461US9191121B2Optical transmitter and method thereofKOREA ELECTRONICS TELECOMM·Filed 2013·Granted Nov 17, 2015·1 cites·15 claims
- 3561US2025294275A1Apparatus and method for acquiring data synchronization in passive optical networkELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2025·Application pending·0 cites
- 3660US12132525B2Power management method and apparatus of ONU supporting slicing functionELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Granted Oct 29, 2024·0 cites·16 claims
- 3760US11742952B2Burstmode optical transmitterELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Granted Aug 29, 2023·0 cites·13 claims
- 3860US11233572B2Slice connection method of optical access network and optical access network system for slice connectionELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2020·Granted Jan 25, 2022·0 cites·4 claims
- 3960US2025007614A1Apparatus and method for allocating wavelengths for optical signals in optical access networkELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2024·Application pending·0 cites
- 4058US8224190B2Channel assignment method and apparatus for wavelength-division-multiplexed transmission systemCHUNG HWAN-SEOK·Filed 2009·Granted Jul 17, 2012·1 cites·13 claims
- 4154US2024196119A1Method and apparatus for detecting and recovering rogue onuELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2023·Application pending·0 cites
- 4253US11770341B2Bandwidth allocating apparatus and method for providing low-latency fronthaul service in passive optical networkELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2022·Granted Sep 26, 2023·0 cites·14 claims
- 4353US2025240036A1Hardware optimization device and method for low-density parity check decoderELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2024·Application pending·0 cites
- 4452US11569911B2Multi-quiet zone-based optical network unit registration method for low-latency serviceELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2021·Granted Jan 31, 2023·0 cites·12 claims
- 4552US2024244356A1Apparatus and method for slicing resources in passive optical network systemsELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2023·Application pending·0 cites
- 4649US7848650B2Device and method of swapping optical labels and reproducing optical payload and optical switching device using the deviceKOREA ELECTRONICS TELECOMM·Filed 2007·Granted Dec 7, 2010·0 cites·15 claims
- 4748US9274354B2Polarization control device and methodKOREA ELECTRONICS TELECOMM·Filed 2013·Granted Mar 1, 2016·0 cites·18 claims
- 4847US10735129B2Bandwidth allocation apparatus and method for providing low-latency service in optical networkELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2018·Granted Aug 4, 2020·0 cites·14 claims
- 4946US10476625B2Optical network system using wavelength channels included in O-bandELECTRONICS & TELECOMMUNICATIONS RES INST·Filed 2017·Granted Nov 12, 2019·0 cites·11 claims
- 5046US2010150576A1Optical transmitting apparatus for return-to-zero differential phase-shift-keying (rz-dpsk) or return-to-zero differential quadrature phase shift keying (rz-dqpsk)CHUNG HWAN-SEOK·Filed 2009·Application pending·0 cites
Showing the top 50 of 72 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →