VISIBLE LIGHT COMMUNICATION SYSTEM WITH ORTHOGONAL CODES

摘要

PURPOSE: A visible light communication system using orthogonal codes is provided to recognize an information service in a specific domain among a plurality of information points. CONSTITUTION: A code allocating unit(111) assigns a division code(Wk) to an original data signal. A data encoder(112) encodes data signal in which the division code is allocated in the original data signal. A signal magnitude adjusting unit(113) controls the size of the encoded data signal. A signal synthesizing unit(114) generates a complex optical signal by adding the size adjusted data signal and an illumination signal.