Patent registeration
ㅇ Method and System for Automatically Testing a Quality of Telephone Call in Mobile Communication
ㅇ Antenna of mobile communication terminal
ㅇ Hands free apparatus Having A Liquid Crystal Display
ㅇ Method for servicing wireless Internet using image data
ㅇ System for setting position of Base Transceiver Station
ㅇ On-line Advertisement Method Using Portable Digital Apparatus Having Bluetooth
ㅇ SYSTEM FOR PROVIDING GLOBAL ADVERTISING USING WCDMA NETWORK
ㅇ SELF REPRODUCTION POSSIBLE BASE STATION SYSTEM
ㅇ Method And System for Notifying with Check Message According to Radio Environment Sensing
ㅇ Method and System for Automatically Adjusting Voice Quality of Wireless Communication Network
ㅇ Method and System for Notifying After-sales Service of Defective Mobile Communication Terminal