The invention relates to a visual system and a method for controlling the visual system. The system has the advantages that, and the synchronous and non-frequency-sending and short-repeated pulse strings are established together. Due to the fact that the pulse string is not frequency-transmitted, the pulse string is low in repetition rate, the system allows the wireless remote controller unit andthe wireless remote control receiver to work at most time., and therefore the system cannot be remarkably interfered by the synchronization system. In addition, the system has the advantage that as long as their signals differ in length and repetition rate from synchronous pulse trains, a pulse string which is different from the synchronization can optionally be encoded in the coding mode, so thatthe synchronization system cannot be remarkably influenced by other remote control emitters.
Visual system and method of controlling the visual system