Inventor

CHOI EUN CHANG

KR23 patents

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

CHOI EUN CHANG

KOREA ELECTRONICS TELECOMM

Bit synchronization apparatus for recovering high speed NRZ data

Apparatus and method for using nibble inversion code

Priority-based wireless USB transfer service management apparatus and method thereof

Apparatus and method for providing hands-free and LCD display function of mobile communication terminal using Zigbee

Method and apparatus for detecting and recognizing object using local binary patterns

Sensing information management apparatus and method of sensor based home network system

Voltage controlled ring oscillator

Method and apparatus for OFDM based on 3D signal constellation

High resolution ranging apparatus and method using UWB

ELECTRONICS & TELECOMMUNICATIONS RES INST

Method for manufacturing bone graft material and bone graft material manufactured thereby

Automatic hair transplanter for transplanting follicles

Modular automatic hair implanter

Hair implanter with automatically retracting needle

Apparatus for loading follicular unit into needle for hair implant

Follicle transfer and transplantation method based on follicular unit extraction

Automatic hair transplant apparatus

Manual follicle-transplanting hair transplanter for increasing graft survival rate

Apparatus and method for expanding skin

SAMSUNG ELECTRONICS CO LTD

Refrigerant expansion device

Window type air conditioner having injection-molded upper and lower casings

Horizontal air direction control vane arrangement of an air conditioner

CHOI EUN-CHANG

Real-time wireless communication method for guaranteeing quality of service in wireless personal area network

SOHN JONG-MOO

Wireless audio transceiver system and method using UWB wireless communication