모바일 단말기의 디스플레이 장치를 이용한 새로운 데이터 전송방법

Abstract

This paper presents a novel data transmit method using display units of mobile devices. Mobile devices such as personaJ digital-assistants (PDAs) and ceUular phones have a display unit. The typical diplay unit is a liquid-crystaJ-dispJay (LCD) with an back-light. Since the proposed data transmit method uses the LCD or back light as a data transmitter, it is a kind of sightable light communication. In order to transmit the data, the display unit drived by an application program on the platform of mobile devices. In this paper, detailed data transmit scheme, specific data protocol are presented and discussed. Finally, with the experimentaJ results, usefulness of the proposed data transmit method is vervfied.