抄録
The basic functions of the new multimedia information broadcasting service, which interactively displays multimedia information, are studied. The system allows retrieval and viewing of the latest information such as news and weather anytime. Information can be decoded and displayed on various receiving display units including HDTV, personal computer, and PDA. Program data will be constructed by combining layout structure, logical structure and link structure to allow interactive viewing of detailed information and related items. Index data will be broadcast to provide user-friendly service. The index data will include a program table, keyword table, as well as category, keywords for each information. A technique to automatically create index data is also studied. Based on the study of basic functions, an experimental system to broadcast through a satellite broadcasting data channel has been developed and its effects have been verified. The system is also promising as a future ISDB information service.
