| 摘要 |
PURPOSE:To recognize a data signal changing with time without always monitoring it on the reception side. CONSTITUTION:The data signal due to output signals of a state detecting circuit 110, logic circuits 120 and 140, and an operation circuit 130 is converted into an analog signal and is transmitted from the transmission side to the reception side through a data transmission line 30. In this case, a signal transmission line 40 for reception synchronization independent of the data transmission line 30 is provided between the transmission side and the reception side. A signal for reception synchronization synchronized with the timing of sampling of the data signal on the reception side is transmitted from the transmission side to the reception side through the signal transmission line 40 for reception synchronization simultaneously with transmission of the data signal. The analog signal is converted into a digital signal on the reception side synchronously with the signal for reception synchronization, thereby recognizing the change with time of the data signal from the transmission side without always monitoring the analog signal on the reception side. |
