Patent ID: 8948600
Filing Date: 2015-02-03
Classification: H04B

Abstract:
1. 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.