Sung-Chul Yang

Emergency call system and control method thereof

Apparatus and method for switching navigation mode between vehicle navigation mode and personal navigation mode in navigation device

Navigation system using wireless paging network and method of providing traffic information therefor

Apparatus and method for managing address book in portable wireless terminal

Mobile terminal for transmitting emergency message and method thereof

Method for controlling display of indicators in wireless mobile terminal

Digital broadcast system and method using a digital broadcast signal containing location information

Method and system for integrating schedule management and broadcast program reservation in a terminal having functions of personal schedule management and broadcast program reservation

Method for determining an initial position in a navigation system

Pen input method and device for pen computing system