Patent ID: 9621267
Date: 2017-04-11
CPC Classifications: H04B

Claim:
1. A visible light communication system that performs visible light communication using a plurality of Light Emitting Diodes (LEDs), the visible light communication system comprising: a modulation controller that determines a modulation degree on a channel basis of the plurality of LEDs; and a modulation unit that modulates data to transmit on a channel basis, and outputs the data to a receiving unit according to a modulation degree on a channel basis of the plurality of LEDs that are determined by the modulation controller, wherein the modulation controller determines the modulation degree on a channel basis according to performance information on a channel basis of the plurality of LEDs that are fed back from the receiving unit, and the modulation controller determines a lower modulation degree than a previous modulation degree of a channel in which performance on a channel basis becomes lower than a normal performance range with reference to performance information on a channel basis of the plurality of LEDs that is fed back from the receiving unit.