BOTH SIDE DISPLAY DEVICE CONTROLLER FOR GUIDING TRAIN

PURPOSE:To provide an LED both side display device which simultaneously executes train guiding display on two display devices of both surfaces, shorten the time for display processing and is inexpensive in terms of cost. CONSTITUTION:This both side display device controller consists of a memory in which data on the destination, starting time, etc., of trains are stored, a CPU which serially delivers code data which are the fixed data of arrows X in opposite directions at both ends, are the variable data based on the data of the memory in the middle and are more by one than the information to be actually displayed as a whole, a control board which delivers effective control signals or non-effective control signals as to whether or not to delay the code data, a first delay circuit and second delay circuit which are parallely connected and delay or not delay the serial data in accordance with the delay effective control signals or delay non-effective control signals from this control board and the both side display device which has the A side LED display device 26 connected to this first delay circuit and the B side LED display device 28 connected to this second delay circuit.