SIGNAL GENERATOR, ILLUMINATION CONTROLLER, COMMUNICATION SYSTEM, AND ILLUMINATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To generate a common signal which can be transmitted using a common signal line to signal input devices to which different types of signals are input.

SOLUTION: A pulse width modulation signal generation unit 110 generates a pulse-width modulated signal for a lighting fixture 820 (illumination device, pulse-width modulated signal input device). An on-off modulated signal generation unit 120 generates a digital signal (on-off modulated signal) for a lighting fixture 830 (illumination device, on-off modulated signal input device). A signal output unit 130 outputs a signal formed by combining the digital signal generated by the on-off modulated signal generation unit 120 with a part of the pulse-width modulated signal generated by the pulse-width modulated signal generation unit 110.

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