CONCENTRATED TRANSMITTER, FIXED DISPLAY RECEIVER AND WIRELESS CALL SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To easily and alternately execute the light switching on and off of each indicator by alternately transmitting a light switching on control signal and a light switching off control signal each time the same buttons are operated when a mode changeover switch switches to a light switching on-light switching off alternative mode. SOLUTION: These concentrated transmitters 3 are provided with a mode changeover switch for switching to a light switching on-light switching off alternative mode. In the case where the switching is made to the light switching on-light switching off alternative mode when the mode changeover switch is operated, a light switching on control signal and a light switching off control signal are alternately transmitted each time the same buttons 34a and 34b are operated. A concentrated transmitter 3(#1) controls the display window 1A of a display receiver 1, and a concentrated transmitter 3(#2) controls the display window 21 of an extended indicator 2. Each of the transmitters 3 (#1 and #2) operates the same buttons. Because the transmitters 3 alternately transmit the light switching on control signal and the light switching off control signal in the light switching on-light switching off alternative mode each time the same button is operated, the display windows 1A and 21 corresponding to the operation buttons alternately perform light switching on and off.