Inventor

LEE JYUNG CHAN

KR34 patents

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

LEE JYUNG CHAN

KOREA ELECTRONICS TELECOMM

Method of optimizing output signal of optical receiver using FEC and optical receiving system using the method

Tunable optical network unit for multi-wavelength passive optical network system and operating method thereof

Optical transceiver and method of controlling optical output jitter using the same

Apparatus for controlling decision threshold voltage to optical receiver

L-band erbium-doped fiber amplifier pumped by 1530 nm-band pump

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

Tunable high-order bessel low pass filter

Apparatus and method for maintaining constant extinction ratio of laser diode

Apparatus for testing performance of optical transceiver

System and method for operating optical transponder

Optical fiber amplification method and apparatus for controlling gain

Erbium-doped optical fiber amplifier using input optical signal filtering

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

Apparatus and method for automatically correcting bias voltage for carrier suppressed pulse generating modulator

Optical transponder with add/drop operation function of optical channels

Method and apparatus for optimizing decision level of signal output from optical receiver

Multi channel transmitter optical sub-assembly

Optical transponder and method for detecting and treating errors in optical channel sublayer of the optical transponder

Method for automatically revising wavelength of electro-absorption modulator integrated laser diode

Wavelength-tunable optical transmission apparatus

Apparatus for transmitting/receiving variable-wavelength optical signal

Optical transponder having switching function

ELECTRONICS & TELECOMMUNICATIONS RES INST

Optical transceiver based on planar lightwave circuit

Optical transceiver and method of optimizing optical transceiver

Apparatus and method for generating PAM-4 optical signal

Impedance correcting method and apparatus, and impedance-corrected signal line for optical transceiver

Optical transceiver of flexible modulation format

Silicon photonics-based optical modulator

Interface for transmitting high-speed signal and optical module including the same

Board assembly for transmitting high-speed signal and method of manufacturing the same

ELECT & TELECOMM RESEARCH INST

Method for correcting the shift of output wavelength of light source

Method and apparatus for controlling wavelength tuning of optical source for optical communication

CHUNG HWAN-SEOK

Apparatus for receiving optical signal and method of controlling phase offset for differential quadrature phase shift keying

LEE JYUNG-CHAN

Method and apparatus for controlling an optical receiver having delay paths