ERROR RETRANSMISSION MECHANISM-COMPRISED METHODS APPARATUSES AND SYSTEMS FOR TRANSMITTING AND RECEIVING VISIBLE LIGHT SIGNAL

摘要

The present invention relates to a method, an apparatus and a system for transmitting and receiving a visible light signal having an error retransmission mechanism, wherein the launching source can execute a signal transmission at an error sensitive level in a period of transmitting the visible light signal. Each time a procedure for reading the time of execution of the source, a comparison of the time range of the signal with the time of execution, a procedure for resending the signal if the time of execution does not fall within the time range of the signal, and the time of execution The procedure for continuing to send a signal when entering the corresponding signal time range is included.