| 摘要 |
PURPOSE:To enlarge communication location and to emphatically display the image of a speaker by varying an extracting area on a screen corresponding to the number of attendants at the time of synthesizing video signals from respective TV conference terminals, and modifying the arrangement at the time of synthesizing the extracting areas. CONSTITUTION:Video signals from respective TV conference terminals 1a-1f are signal-converted in interface parts 3a-3f, decoded by video line processing parts 4a-4f, and thus video synchronization is attained. Then, based on conference control signals (number of communication locations, number of conference attendants, segmented size/position information) from a specified terminal (for instance a terminal 1a at which a conference master of the chairman participates), a reduced picture is generated. A video multiplex switching part 12 generates the picture of a specified location or a reducing synthesis picture from each terminal corresponding to a request from each terminal, and the data is coded again in a processing part 4, then multiplexed with a voice signal from a voice line processing part 7, and further signal-converted in the interface part 3, thereafter, the data is distributed to respective terminals through a line 10.
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