A VoiceXML-based EPG Retrieval System

VoiceXML기반 EPG 검색 시스템

  • 김한수 (아주대학교 정보통신전문대학원) ;
  • 황인준 (아주대학교 정보및컴퓨터공학부)
  • Published : 2004.08.01

Abstract

Recent commencement of digital broadcasting has enabled various TV programs through hundreds of channels. As a result, it becomes a time-consuming job for the TV audience to look up newspaper or TV magazines for the schedule of a specific TV program. To relieve this problem, digital broadcasting usually provides an EPG(Electronic Program Guide) for the audience. Currently. most EPG services are focusing on the visual delivery of information through a web site, digital TV or mobile devices. However, this approach could cause a serious restriction to some users including drivers or visually handicapped persons, who can't input keywords for the search. In order to solve this problem, in this paper, we propose a VoiceXML-based EPG retrieval system that enables even such special users to browse EPG. conveniently using a mobile phone. We implemented a prototype system and proved its effectiveness through experiments.

최근 들어 디지털 방송의 본격적인 서비스 개시와 더불어 수많은 채널을 통한 TV 프로그램 방송이 가능하게 되었다. 이로 인해 시청자들은 더 이상 신문이나 TV 가이드와 같은 인쇄매체를 통한 방송 스케줄의 검색이 사실상 어렵게 되었다. 이 같은 문제점을 해결하기 위해 디지털 방송 환경에서는 시청자들에게 전자 프로그램 가이드(EPG: Electronic Program Guide)를 제공한다. 현재 대부분의 EPG 서비스는 디지털 TV 화면이나 각 방송사 웹사이트, 그리고 모바일 단말기에서 EPG 정보를 화면상에서 시각적으로 제공하는 측면에만 초점을 두고 있다. 하지만 이와 같은 EPG 서비스 방식은 검색을 위해 키워드를 직접 입력하기 어려운 운전자나 시각 장애인과 같은 사용자 그룹이 EPG 서비스를 이용할 수 없는 한계점을 지닌다. 따라서 본 논문에서는 모바일 폰을 이용하여 운전자나 시각 장애인과 같은 사용자 그룹도 편리하게 EPG 서비스를 검색할 수 있는 음성 EPG 검색 시스템을 제안하고 프로토타입 시스템의 구현 및 실험을 통해 효율성을 입증하였다.

Keywords

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