Method and apparatus for controlling image communication between a plurality of terminals and an exchange
First Claim
1. A method for controlling image communication between a plurality of terminals and an exchange, the method comprising the steps of providing an image communication processing device between the plurality of terminals and the exchange;
- picking up an image to be transmitted by each terminal, and entering an image signal into said terminal and transmitting by each terminal the image signal entered at said image picking-up step; and
in said image communication processing device, reducing an image signal transmitted from each of said terminals, composing an image signal reduced at said reducing step, and transmitting the composite signal composed at said composing step to destination terminals of each of said terminals through said exchange.
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Accused Products
Abstract
A method and apparatus for performing image communication between a plurality of terminals are suggested, in which a composing unit is provided for composing a signal transmitted from a predetermined number of terminals at the transmitting side, together with destination information, into one image signal. An encoding unit encodes the composite signal composed by the composing unit. The composite signal encoded at the encoding unit is transmitted to the receiving side through an exchange at the transmitting side.
38 Citations
25 Claims
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1. A method for controlling image communication between a plurality of terminals and an exchange, the method comprising the steps of providing an image communication processing device between the plurality of terminals and the exchange;
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picking up an image to be transmitted by each terminal, and entering an image signal into said terminal and transmitting by each terminal the image signal entered at said image picking-up step; and in said image communication processing device, reducing an image signal transmitted from each of said terminals, composing an image signal reduced at said reducing step, and transmitting the composite signal composed at said composing step to destination terminals of each of said terminals through said exchange. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for controlling image communication, comprising an image communication processing device provided between a plurality of terminals and an exchange, each said terminal comprising:
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an image pick-up means for picking up an image to be transmitted and entering an image signal into said terminal; and a communication processing means for transmitting the image signal entered by said image pick-up means, said image communication processing device comprising; a reducing means for reducing an image signal transmitted from each of said terminals; a composing means for composing an image signal reduced by said reducing means; and a transmission means for transmitting the composite signal composed by said composing means to a destination terminal of each said terminal through said exchange. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification