Inventor
KIM KWANG-JOON
KR37 patents
⚠️ This page may combine multiple inventors who share the name “KIM KWANG-JOON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOREA ELECTRONICS TELECOMM
24 patentsUS6559989B1May 6, 2003
Optical packet header processing apparatus for optical packet switch
KOREA ELECTRONICS TELECOMM41 citations92
US6529319B2Mar 4, 2003
Automatic gain-controlled optical fiber amplifier
KOREA ELECTRONICS TELECOMM53 citations92
US5770851AJun 23, 1998
Compact optical logic operator array
KOREA ELECTRONICS TELECOMM21 citations92
US6097529AAug 1, 2000
Apparatus for enhancing extinction ratio in optical NRZ-to-RZ converting system, and optical modulation system therefor
KOREA ELECTRONICS TELECOMM24 citations90
US7313333B2Dec 25, 2007
Apparatus for controlling decision threshold voltage to optical receiver
KOREA ELECTRONICS TELECOMM12 citations84
US7133196B1Nov 7, 2006
Erbium doped fiber amplifier for reducing transient phenomena of OSNR and BER in dynamic WDM system and amplifying method thereof
KOREA ELECTRONICS TELECOMM11 citations84
US6570698B2May 27, 2003
Apparatus and method for modulating optical intensity with amplitude noise suppressed by using linear optical modulator
KOREA ELECTRONICS TELECOMM15 citations84
US6928243B2Aug 9, 2005
Optical performance monitoring apparatus for a WDM optical communication system
KOREA ELECTRONICS TELECOMM17 citations83
US8355612B2Jan 15, 2013
Active alignment method for multi-channel optical transmitter and receiver, which has an optical signal generator with an optical multiplexer, which has an optical signal generator with an optical multiplexer
KOREA ELECTRONICS TELECOMM5 citations73
US7049902B2May 23, 2006
Tunable high-order bessel low pass filter
KOREA ELECTRONICS TELECOMM8 citations73
US6791685B2Sep 14, 2004
Optical signal performance monitoring apparatus and method in multi-channel optical transmission system
KOREA ELECTRONICS TELECOMM7 citations73
US7394983B2Jul 1, 2008
Method and apparatus for detecting optical switch fault by monitoring optical output transitions
KOREA ELECTRONICS TELECOMM7 citations72
US8036527B2Oct 11, 2011
Apparatus and method for protection switching of optical channel
KOREA ELECTRONICS TELECOMM3 citations63
US7676155B2Mar 9, 2010
Dynamic wavelength allocation device using 3R wavelength converter having limited wavelength conversion range and method thereof
KOREA ELECTRONICS TELECOMM5 citations62
US7356220B2Apr 8, 2008
Apparatus and method for reducing signal noise and OCDMA receiver and method
KOREA ELECTRONICS TELECOMM4 citations62
US6606190B2Aug 12, 2003
Inhomogeneity tunable erbium-doped fiber amplifier with long wavelength gain band and method of blocking propagation of backward amplified spontaneous light emission in the same
KOREA ELECTRONICS TELECOMM3 citations62
US6060704AMay 9, 2000
Photodetector for simultaneous recognition of multiple wavelengths, and method therefor
KOREA ELECTRONICS TELECOMM6 citations62
US5751468AMay 12, 1998
Vertical modulator with dual mode DBR
KOREA ELECTRONICS TELECOMM3 citations62
US7755073B2Jul 13, 2010
Acousto-optic filter and optical CDMA system using the same
KOREA ELECTRONICS TELECOMM4 citations61
US7075694B2Jul 11, 2006
Apparatus and method for automatically correcting bias voltage for carrier suppressed pulse generating modulator
KOREA ELECTRONICS TELECOMM3 citations61
US7486890B2Feb 3, 2009
Optical transmission apparatus and method
KOREA ELECTRONICS TELECOMM0 citations52
US6028301AFeb 22, 2000
Method for controlling a micro electro-mechanical systems and verifying the state thereof using light
KOREA ELECTRONICS TELECOMM1 citations52
US6115375ASep 5, 2000
Multistage optical packet switching apparatus using self electro-optic-effect devices
KOREA ELECTRONICS TELECOMM1 citations51
US7266309B2Sep 4, 2007
Apparatus and method for stabilizing bias voltage for pulse generating modulator
KOREA ELECTRONICS TELECOMM0 citations40
CHUNG HWAN-SEOK
5 patentsUS8681885B2Mar 25, 2014
OFDM receiver and method for compensating for I/Q imbalance
CHUNG HWAN-SEOK8 citations83
US8406625B2Mar 26, 2013
Apparatus and method for cross-connecting optical path in wavelength division multiplexing system
CHUNG HWAN-SEOK5 citations72
US8116623B2Feb 14, 2012
Multi-ring network operating method and system
CHUNG HWAN-SEOK4 citations62
US8565620B2Oct 22, 2013
Apparatus for receiving optical signal and method of controlling phase offset for differential quadrature phase shift keying
CHUNG HWAN-SEOK0 citations51
US8224190B2Jul 17, 2012
Channel assignment method and apparatus for wavelength-division-multiplexed transmission system
CHUNG HWAN-SEOK1 citations51
ELECT & TELECOMM RESEARCH INST
2 patentsUS6862303B2Mar 1, 2005
Multiwavelength locking method and apparatus using acousto-optic tunable filter
ELECT & TELECOMM RESEARCH INST2 citations60
US7917040B2Mar 29, 2011
Method and apparatus for controlling wavelength tuning of optical source for optical communication
ELECT & TELECOMM RESEARCH INST0 citations51
ELECTRONICS & TELECOMMUNICATIONS RES INST
2 patentsUS9787401B2Oct 10, 2017
Mode division multiplexed passive optical network (MDM-PON) apparatus, and transmission and reception method using the same
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations51
US10805224B2Oct 13, 2020
Parallel scheduling method and parallel scheduling apparatus
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations48