| 摘要 |
PURPOSE:To simplify a circuit, to miniaturize a device and to simplify information setting by storing common fixed information used in common for many devices to a memory circuit, and using a switch circuit to set variable location information only. CONSTITUTION:So-called common fixed information such as bus company number, system number, model number and line number is given to a terminal D2 of a memory circuit 11 for storage. An address of the memory circuit 11 is designated from the content by an address designating means 10 inputting a signal of an oscillation circuit 9 and outputted to a contact 17b of a switch means 17 via a signal line (g). In transmitting variable location information of a bus stop name, the direct signal transmission from the terminal D2 is stopped and data set information of switch circuits 13a-13h is outputted. A clock signal is outputted to the contact 17b via the signal line (g) from the terminal D2 in this case and an inverted clock signal opposite in polarity to the clock is outputted to a contact 17c from a terminal D3 via a signal line (h). |
