Inventor

KIM SUNG CHANG

KR40 patents

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

KIM SUNG CHANG

ELECTRONICS & TELECOMMUNICATIONS RES INST

Method and apparatus for selecting wavelength in hybrid passive optical network system

Endoscopic apparatus for thermal distribution monitoring

Multi-channel optical subassembly and method of manufacturing the same

Fast protection switching method for passive optical network

Method and system for determining and controlling power of optical transmitter of optical network unit for time and wavelength division multiplexing passive optical network

Adaptive deep learning inference apparatus and method in mobile edge computing

Spectroscopic device

Method and apparatus for setting quiet window in passive optical network system

Apparatus and method for adjusting optical axis for optical wireless communication in free space

Bi-directional wireless optical communication apparatus and method thereof

Multi-wavelength transmission apparatus using cylindrical lenses

Handheld device and method for measuring quality of optical link

Apparatus and method for recognizing optical connector connection

Method and system for determining and controlling power of optical transmitter of optical network unit for time and wavelength division multiplexing passive optical network

Method of controlling optical network unit (ONU) in sleep mode

Apparatus and method for detecting optical line fault in passive optical network

Multi-channel receiver optical sub assembly module for fiber Bragg grating sensor

Smart remote node optical network unit and operation method thereof

Multi-channel optical subassembly structure comprising an alignment jig and method of packaging the structure

KOREA ELECTRONICS TELECOMM

Method of saving power in optical access network

Wavelength selection and configuration method for multi-wavelength optical communication system

Apparatus and method for efficient bandwidth allocation on time division multiple access-based passive optical network (TDMA-PON)

Optical line terminal of passive optical network, and method for controlling upstream band using the same

Optical line terminal and method of registering optical network terminal thereof

Optical network system and method for controlling optical network system

Optical line terminal and optical network unit for supporting sleep mode thereof

Apparatus and method for monitoring optical line

KIM SUNG CHANG

Optical network terminal, method for time syncronization thereof, optical line terminal, and method for managing network thereof

Optical network unit and method of saving power thereof

Optical subscriber network

YOO HARK

Apparatus and method for managing dynamic bandwidth allocation to support low-power mode in passive optical network (PON)

Dynamic bandwidth allocation device for an optical network and method thereof

Apparatus and method for allocating dynamic bandwidth

KIM GEUN YONG

Detecting rogue ONU, OLT and PON system

Method and apparatus for filtering multicast port identifier in gigabit-capable passive optical network (GPON) system

LEE YOUNG SUK

Method for transmitting OAM message and processing error in PON system

Passive optical network (PON)-based system and method for providing handover among optical network terminals (ONTs)

LEE MUN SEOB

Optical repeater and optical signal amplifying method thereof

Method and apparatus for burst mode clock and data recovery

KIM SUNG-CHANG

Automatic optical power control method for OLT in PON