CONTROL SIGNAL COMMUNICATION SYSTEM, AND EQUIPMENT AND PERIPHERAL EQUIPMENT TO USE IT

PURPOSE:To easily perform a remote control even between equipments whose command key operations are different by discriminating a mode by the command key operation and transmitting a signal in accordance with this mode. CONSTITUTION:A signal from a built-in command key 11 of the equipment is supplied to a key input circuit 12, a signal from a remote control signal receiving pat 13 is supplied to a signal control circuit 14, and they are processed by a command key processing circuit 16, through a mixer 15, supplied to a mode determining circuit 17, and the desired mode to be executed to the prescribed key operation is determined. The signal in accordance with this mode is supplied to a mode transition determining circuit 19 through a switch 18 and a transition means when the present mode is transferred to the desired mode is determined. Consequently, the signal of a bus line 3 is supplied to the circuit 19 as it is and the mode transition means can be determined. Thus, the remote control between the equipments whose command key operations are different can be easily performed.