| 摘要 |
PURPOSE:To miniaturize a discriminating circuit, by discriminating whether a response signal from all devices to be controlled is received or not, by the response signal from all the devices to be controlled received at a gate circuit, and a timing signal generated from control signal transmitting information. CONSTITUTION:When a transmission pulse is given, a strobe signal and a control signal are transmitted from a counter 3 via NAND circuits 4, 5. Differentiation circuits 24, 25 generate a pulse with the leading of the strobe signal and the control signal. This pulse is inputted to an RSFF26 and a timing pulse is formed. Further, the device to be controlled receives a strobe signal and transmits a response signal in synchronizing with it. The received response signal is inputted to an AND circuit 12' via NOT circuits 7, 8. Further, the output of the RSFF26 and the output of the AND circuit 12' are inputted to an NAND circuit 27 and the reception of all the response signals is discriminated by the output. |
