Transmitter for wireless optical communication system using light source

A transmission apparatus of a wireless light communication system using an illumination light source comprising:

• a dimming level input unit which receives a dimming level of the illumination light source as an input;
• a coder which codes original data so that ‘1’ and ‘0’ occupy by 50%, respectively, and outputs the coded data;
• a dimming coder which checks the dimming level input to the dimming level input unit and dimming-codes the data output from the coder by using a symbol-codeword table corresponding to the dimming level;
• and
• a line coder which converts the data dimming-coded by the dimming coder into pulse signals for driving the illumination light source and outputs the pulse signals to the illumination light source,
• wherein the illumination light source emits light according to the pulse signal output from the line coder.