Abstract:
PURPOSE: An apparatus and method for activating a specific region of MPEG-2 video using MPEG-4 scene descriptor are provided to allow a user to easily access interactive digital broadcasting and increase utilization of additional data. CONSTITUTION: An apparatus for activating a specific region of MPEG-2 video using MPEG-4 scene descriptor includes a specific region setting and updating unit(100) for setting a specific region of interactive digital broadcasting MPEG-2 video and updating information about the specific region that varies with time, and a scene descriptor generating and encoding unit(200) for generating a scene descriptor based on the information about the specific region and encoding the scene descriptor. The apparatus further includes a capsulating unit(300) for capsulating the scene descriptor and additional data to be connected to the scene descriptor in MPEG-2 packet, and a multiplexing unit(400) for inserting the capsulated scene descriptor and additional data into the MPEG-2 video data including the specific region.
Abstract:
본 발명은 대화형 기능을 제공하는 대화형 디지털 텔레비전 콘텐츠 전송 스트리밍 시스템에 관한 것으로, 시청자에게 일방적으로 정보를 전달하는 기존 방송시스템에서 벗어나 대화형 콘텐츠 전송을 가능하게 함으로써, 시청자에게 콘텐츠와의 대화형 기능을 제공하기 위한 대화형 디지털 텔레비전 콘텐츠 전송 스트리밍 시스템을 제공하기 위하여, MPEG-2 비디오 부호화기, MPEG-2 오디오 부호화기, MPEG-4 부호화기, 조건부 접속 제어기, 프로그램 다중화기, 데이터 다중화기, 스위치를 구비하여 시청자에게 일방적으로 정보를 전달하는 기존 방송시스템에서 벗어나 대화형 콘텐츠 전송을 가능하게 함으로써, 시청자가 원하는 정보를 얻을 수 있도록 하며, 이러한 대화형 서비스로 교육방송, 퀴즈/오락, 게임, 광고, 일기예보, 주가정보 제공, 뉴스 제공, 홈쇼� ��, 홈뱅킹, 투표 등에 이용됨.
Abstract:
PURPOSE: A dialogue type broadcasting terminal system is provided to maintain compatibility and improve contents efficiency by constructing a bi-directional dialogue type broadcasting environment with an MPEG(moving picture expert group)-4/7 technology. CONSTITUTION: A demultiplexer receives an MPEG-2 transport stream data from a dialogue type broadcasting terminal system and divides the data for each content. Several first storing units temporarily store the demultiplexed data. A processor processes the user's requirement for the contents. Several processor/decoders process and decode the demultiplexed data. Several second storing units temporarily store the processed and decoded data. A controller controls the decoding process and performs re-writing if there is a change in the data stored in the second storing units. A video synthesis/output unit synthesizes and outputs a video image by receiving the data stored in the second storing units. An audio output unit receives an audio data stored in the second storing units.