Multi-location video conference system
First Claim
1. A method for establishing video-audio communications between more than two remotely located conference rooms characterized bydesignating one of the conference rooms to be the director'"'"'s conference room,assigning a broadcast satellite channel to broadcast from any one of the conference rooms to all other conference rooms,assigning an auxiliary satellite channel to transmit from any one of the other conference rooms to the room assigned to the broadcast satellite channel,using frequency division multiple access satellite transmission of the broadcast channel and the auxiliary channel, andusing public switch network lines to transmit control signals from the director'"'"'s conference room to satellite modulators-demodulators (modems) located at earth stations via a video teleconferencing switching controller and a monitor and remote controller at each earth station coupled to selectively tune the modulators to said broadcast channel or said auxiliary channel, and to selectively tune the demodulators to one of the two channels, and to selectively turn the modulators on or off.
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Accused Products
Abstract
The invention, which can be used with AT&T SKYNET® digital satellite communications service allows a conference director to control a teleconference between several conference rooms. In this invention there are two transmitting channels, one being identified as a broadcast channel and the other is identified as an auxiliary channel. The conference director can assign the broadcast channel to any room and the auxiliary channel to any other room. The video signal on the broadcast channel is sent to a first satellite dish for frequency division multiple access transmission via a satellite to all of the other conference rooms. The video signal on the auxiliary channel is sent to a second satellite dish for frequency division multiple access transmission via the satellite to the conference room from which the broadcast channel originates.
100 Citations
8 Claims
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1. A method for establishing video-audio communications between more than two remotely located conference rooms characterized by
designating one of the conference rooms to be the director'"'"'s conference room, assigning a broadcast satellite channel to broadcast from any one of the conference rooms to all other conference rooms, assigning an auxiliary satellite channel to transmit from any one of the other conference rooms to the room assigned to the broadcast satellite channel, using frequency division multiple access satellite transmission of the broadcast channel and the auxiliary channel, and using public switch network lines to transmit control signals from the director'"'"'s conference room to satellite modulators-demodulators (modems) located at earth stations via a video teleconferencing switching controller and a monitor and remote controller at each earth station coupled to selectively tune the modulators to said broadcast channel or said auxiliary channel, and to selectively tune the demodulators to one of the two channels, and to selectively turn the modulators on or off.
Specification