MULTI-SPOT VIDEO COMMUNICATIONS SYSTEM

摘要

PURPOSE:To provide a multi-spot video communications system enabling both display modes of a divided display mode and a full screen display mode by using an economical loop type connection system. CONSTITUTION:Each terminal connected in a loop form via a transmission line and arranged at plural spots has a display mode switch means switching two display modes of a division display mode and a full screen display mode and composed of an input/output image switch part 15, an encoding data switch part 19 and a control part 29, a control signal transmission and reception means performing the transmission and reception of control signals between each terminal and composed of a multiplex/separation part 13 and the control part 29 and a control means imparting the instruction of the switch of the display mode to the display mode switch means according to the contents of a received control signal.