| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system capable of displaying data for a specific person or a specific group and executing bidirectional communication between an owner of each input terminal and a display device. SOLUTION: Each input terminal has an inherent identification (ID) code, and at the time of outputting an input signal to a display device 20, outputs the input signal together with the ID code owned by the terminal 10 itself. Thereby the display device 20 receiving the output signal from the input terminal can discriminates which input terminal outputs the output signal and displays data on a display part 21 in each input terminal outputting the output signal. When the input terminal outputting the output signal belongs to a specific group, the output signal is used as a triger and data for the specific group are displayed on the display part 21. |
