Peripheral unit for satelite multi-videoconferencing

Details Peripheral unit for satelite multi-videoconferencing Peripheral unit for satelite multi-videoconferencing

1995-03-16

1997-06-17

Chan, Wing F.

Television

Two-way video and voice communication

User positioning

379202, 455 32, H04M 1100

Patent

active

056401973

ABSTRACT:
The peripheral unit for multi-videoconferencing permits multi-videoconferencing while fully exploiting the characteristics of a telecommunications satellite, and can also provide the service to users not connected to the ground network. In particular, the system can connect several remote rooms through a satellite network, interfaceable with a ground control center, to provide an overall mixed ground-satellite network able to simultaneously serve both permanent and temporary users. The peripheral unit is connected on one side to the transceiving station for the satellite link and on the other to the encoder and decoder of video and audio signals, which are generated locally or received from a remote station and organized according to a protocol provided with time-slot frames and superframes.

REFERENCES:
Frame-Synchronous Control and Indication Signals for Audiovisual Systems, neva 1990 Recommendation H.230, revised Mar. 1993, pp. 1-7.
European Conference on Satellite Communications, 2 Nov. 1993 -4 Nov. 1993, pp. 175-186, Barbieri et al.
Phoenix Conference on Computers and Communications-Proceedings, 21 Mar. 1990-23 Mar. 1990, pp. 386-393, Watabe et al.

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