Development of multi point Distance Lecture System which integrates communication media

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In this research, we consolidated a multipoint video conference control system which can connect various types of communication standards, we then tested the connections of the interactive multipoint video conference system using ground communication networks and satellite communication systems.(1)Experimental test of interconnection of various communication protocols.We demonstrated the following experimentations.【1!○】 Maintenance of video conference attachment unit which can correspond to multipoint, multiprotocol, and multi speed【2!○】 Multi speed connection such as 2B/4B/6B with ISDN line【3!○】 Connection of video conference software for personal computer which uses IP connection【4!○】 Multiprotocol connection by IP and ISDN connection【5!○】 Live streaming and VOD notice assignment by connection of video conference and video streaming device【6!○】 Connection of video conference device with different models【7!○】 Practical use of connection with video conference with satellite lines such as SCS and el-net【8!○】 Simultaneous connection of SCS-LAN connection-ISDN connection-el-net(2)Trial and consideration of various distance cooperation lectures.We have improved the environment for comprehensive distance lectures through the interconnection of the systems and then have administrated this system to the distance collaboration lecture and such on a trial basis.As a result, we could compile the problems of the system, and their solutions for implementing distance lectures and the know-how for its operation.In addition, we examined the distance learning model in which we made positive use of the functions of the collaboration lecture system.