System for generating composed signals of multiple pictures for use in a video conference system
First Claim
1. A video conference system for generating and transmitting composed video signals of multi-parties comprising:
- a plurality of video conference terminals connected via a network;
a multi-point control unit remotely connected to said plurality of video conference terminals through the network, said multi-point control unit receiving video signals from said plurality of video conference terminals and generating an information signal including a reducing ratio and a display position for each of the received video signals; and
a multiple picture composer connected to said multi-point control unit and receiving video signals through said multi-point control unit, along with the information generated by the multi-point control unit, and generating a composed video signal which is transmitted back to the video conference terminals via said multi-point control unit, said multiple picture composer comprising;
reducing means for reducing each of the video signals of said plurality of video conference terminals according to said reducing ratio, anda gate circuit section outputting the each of the video signals reduced by the reducing means according to said display position, thereby generating the composed video signal from the video signals sent from said plurality of video conference terminals.
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Accused Products
Abstract
A system generating composed signals of stable multiple pictures reduces a scale of hardware required for forming video signals sent from a plurality of terminals into one composed picture on a video conference system. A system generating composed signals of multiple pictures for use in a video conference system includes video conference terminals connected via a network, a multi-point control unit connected to the network for controlling transmission of video signals among the video conference terminals, and a multiple picture composer connected to the multi-point control unit for receiving video signals sent out from the video conference terminals through the multi-point control unit, and information showing a reducing ratio and display positions of the video signals. The multiple picture composer includes a scaling section reducing video signals corresponding to each of the video conference terminals according to the reducing ratio, and a gate circuit section controlling to output the video signals reproduced by the scaling section according to the display positions, thus generating composed signals of the video signals of the video conference terminals.
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Citations
6 Claims
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1. A video conference system for generating and transmitting composed video signals of multi-parties comprising:
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a plurality of video conference terminals connected via a network; a multi-point control unit remotely connected to said plurality of video conference terminals through the network, said multi-point control unit receiving video signals from said plurality of video conference terminals and generating an information signal including a reducing ratio and a display position for each of the received video signals; and a multiple picture composer connected to said multi-point control unit and receiving video signals through said multi-point control unit, along with the information generated by the multi-point control unit, and generating a composed video signal which is transmitted back to the video conference terminals via said multi-point control unit, said multiple picture composer comprising; reducing means for reducing each of the video signals of said plurality of video conference terminals according to said reducing ratio, and a gate circuit section outputting the each of the video signals reduced by the reducing means according to said display position, thereby generating the composed video signal from the video signals sent from said plurality of video conference terminals. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification