Inventor

CHOE JOONG SEON

KR23 patents

⚠️ This page may combine multiple inventors who share the name “CHOE JOONG SEON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHOE JOONG SEON

ELECTRONICS & TELECOMMUNICATIONS RES INST

Multiple output quantum random number generator

Receiver optical module

Optical alignment device

Beam tracking module, free-space quantum communication device, and free-space optical communication device

Blend prepared by mixing a prepolymer and a vinyl monomer and a polymer sheet obtained therefrom

Waveguide photodetector

Quantum key distribution system and operation method thereof

Quantum information transmitter, quantum communication system including the same, and operating method of quantum information transmitter

Quantum key distribution system and operation method thereof

Polarization decomposition device

KOREA ELECTRONICS TELECOMM

Enhanced coplanar waveguide and optical communication module using the same

Apparatus for measuring performance of coherent optical receiver

Semiconductor optical modulator integrated resistor for impedance matching using semiconductor doped layer and method of fabricating the same

Compound containing crosslinkable moieties, prepolymer, blend and polymer sheet obtained therefrom, and waveguide for optical interconnection

Photodetector

Apparatus and method for measuring IQ imbalance for optical receiver

Measuring device and method of measuring signal transmission time difference thereof

YOUN CHUN JU

Polarization division multiplexed optical orthogonal frequency division multiplexing transmitter and receiver

Method and apparatus for transmitting and receiving coherent optical OFDM

Optical orthogonal frequency division multiplexing receiver and optical signal receiving method thereof

KIM JIN-TAE

Light emitting device and optical coupling module

PARK SEUNG KOO

Prepolymer prepared by a condensation reaction and a polymer sheet obtained therefrom

CHOE JOONG-SEON

Adapter assembly and method for compensating optical fibers for length difference