Visible light communication apparatus and visible light communciation method

A visible light communication apparatus, comprising:

• an LED illumination;
• and
• an illumination driver that mixes luminance signals for the LED illumination and transmission data to generate an illumination driving signal in a pulse waveform for driving the LED illumination,
• wherein the illumination driver controls the position of the pulse in the turn on section for each data transmission period in the waveform of the illumination driving signal according to the transmission data.

A visible light communication method, comprising:

• generating luminance signals by a luminance signal generator that calculates a duty cycle of an illumination driving signal corresponding to input luminance request information and generates clock frequency information on the luminance signals based on the calculated duty cycle;
• generating transmission data by a transmission data generator that generates the transmission data;
• and
• driving illumination by an illumination driver that generates an illumination driving signal in a pulse waveform to drive the illumination based on the clock frequency information on the luminance signals and the transmission data and controls the pulse position in an turn on section for each bit unit time in the waveform of the illumination driving signal based on the transmission data.