ILLUMINATION LIGHT COMMUNICATION DEVICE AND ILLUMINATION LIGHT COMMUNICATION METHOD

摘要

White light emitting diodes (11A, 11A, ...) emits illumination light modulated by communication information. A light quantity control unit (13) controls generation of the illumination light or modulation by a modulation unit (12) so that the light quantity of the illumination light per a predetermined period is constant. For example, the light quantity control unit (13) performs biphase encoding for the communication information.