| 摘要 |
PURPOSE:To prevent a receiving station from functioning without being controlled by a transmitting station, by providing a means for detecting a variation of its address, on the receiving station, and stopping the function of the receiving station in response to its detecting signal. CONSTITUTION:In a system for controlling a lot of receiving stations by a single or a few transmitting stations, the receiving station receives an address and a control information which are transmitted, compares an intrinsic address data set to an address part 1 with the received address information by an input information processing part 3, and when both of them have been in coincidence, the processing part 3 sends the received control information to a function part 4. An address check part 2 checks whether the address set to the address part 1 is correct or not, sends out a check signal to the function part 4 when a variation of the address has been detected, and stops an operation of the function part 4. |
