| 摘要 |
PURPOSE:To ensure an economical performance of the apparatus in case the communication is carried out between the master station and the slave stations after the master station designates one of plural numbers of slave stations, by securing the coincidence of the phases of the signals sent from the slave stations at the stage of the multiplexed signal and then carrying out a batch processing. CONSTITUTION:Input signal CIN of the master station is branched directly, and output signals TOUT1-TOUTn are delivered to each slave station. The slave station decides whether the transmission is made to its own station, and a designated station gives an answer to the master station. In the multijunction circuit, the synchronous signals are detected at synchronizing parts SFYNC1-SFYNCn for input signals TIN1-TINn sent from each slave station and then supplied to buffer memories BFM1-BFMn to secure the phase synchronization. As state signal S of the channel which gave an answer is 1 among the signals of the slave stations, signal S of each slave station is monitored in correspondence to the channel. And signal S is extracted at latch circuit LAT to be applied to memory MEM. Then the gate control signal is generated from MEM, and the signal sent from the selected BFM is transmitted via gate circuits G1-Gn and the OR circuit each. |
