Inventor
CHUNG YUN CHUR
KR26 patents
⚠️ This page may combine multiple inventors who share the name “CHUNG YUN CHUR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOREA ADVANCED INST SCI & TECH
13 patentsUS6895185B1May 17, 2005
Multi-purpose optical fiber access network
KOREA ADVANCED INST SCI & TECH164 citations99
US6597482B1Jul 22, 2003
Multiplexing/demultiplexing apparatus for wavelength division multiplexed system and wavelength division multiplexed passive optical subscriber networks using the same apparatus
KOREA ADVANCED INST SCI & TECH54 citations92
US6433864B1Aug 13, 2002
Apparatus for monitoring optical signal-to-noise ratio of optical signals in WDM optical transmission system
KOREA ADVANCED INST SCI & TECH41 citations92
US7558477B2Jul 7, 2009
Communication recovering system for wavelength division multiplexed passive optical network
KOREA ADVANCED INST SCI & TECH9 citations81
US7542673B2Jun 2, 2009
Fault localization apparatus for optical line in wavelength division multiplexed passive optical network
KOREA ADVANCED INST SCI & TECH7 citations71
US7050658B2May 23, 2006
Method and apparatus for reducing system deterioration caused by polarization effects
KOREA ADVANCED INST SCI & TECH4 citations62
US7848643B2Dec 7, 2010
Communication recovering system for wavelength division multiplexed passive optical network
KOREA ADVANCED INST SCI & TECH4 citations60
US12199670B2Jan 14, 2025
Optimal operation method of high-frequency phase dithering technique for compensating for interference noise in analog-optical transmission-based mobile fronthaul network, and transmitter using same
KOREA ADVANCED INST SCI & TECH0 citations58
US5974208AOct 26, 1999
Sliding-frequency guiding filter for soliton transmission
KOREA ADVANCED INST SCI & TECH0 citations51
US7809227B2Oct 5, 2010
Optical fiber, and optical access network, local area network and optical parts for communication, which use the optical fiber
KOREA ADVANCED INST SCI & TECH0 citations48
US11799556B2Oct 24, 2023
Optical-time-division-multiplexed transmission system using sinusoidally modulated optical signal as input pulse source
KOREA ADVANCED INST SCI & TECH0 citations47
US9819417B2Nov 14, 2017
Method and apparatus for generating optical polar return-to-zero amplitude modulation signal using reflective semiconductor optical amplifier and wavelength-division-multiplexed passive optical network system using the same
KOREA ADVANCED INST SCI & TECH0 citations34
US9154226B2Oct 6, 2015
Optical signal quality monitoring method and apparatus using a software-based synchronized amplitude histogram
KOREA ADVANCED INST SCI & TECH0 citations30
KOREA ADVANCED INST SCIENCE AN
4 patentsUS6548806B1Apr 15, 2003
Apparatus for monitoring frequency of WDM signals using pilot tone
KOREA ADVANCED INST SCIENCE AN20 citations92
US6538784B1Mar 25, 2003
Multicast-capable optical cross-connect with layered modularity
KOREA ADVANCED INST SCIENCE AN38 citations92
US6188509B1Feb 13, 2001
Simple bidirectional add/drop amplifier module based on a single multiplexer
KOREA ADVANCED INST SCIENCE AN33 citations91
US6501573B1Dec 31, 2002
Apparatus and method for monitoring the qualities of optical signal using clock amplitude
KOREA ADVANCED INST SCIENCE AN5 citations60
TERALINK COMMUNICATIONS INC
3 patentsUS7149428B2Dec 12, 2006
OSNR monitoring method and apparatus using tunable optical bandpass filter and polarization nulling method
TERALINK COMMUNICATIONS INC25 citations89
US6813021B2Nov 2, 2004
Method and apparatus for monitoring optical signal-to-noise ratio (OSNR) using polarization-nulling method
TERALINK COMMUNICATIONS INC21 citations87
US7177541B2Feb 13, 2007
OSNR monitoring method and apparatus for the optical networks
TERALINK COMMUNICATIONS INC6 citations61