| 摘要 |
<p>PURPOSE:To detect a data with a synchronous detection circuit with a small circuit scale, by inserting and transmitting an analog signal with a frequency different from the clock frequency of a transmission data between data units as the synchronizing signal of the data unit. CONSTITUTION:The transmission data is transmitted by inserting a sine wave signal with the frequency Fo different from the clock frequency Fc of the transmission data as a frame synchronizing signal by a transmitter. At a receiver side, it is possible to detect the data by frequency-separating and detecting the frame synchronizing signal inserted in the transmission data from a reception data. Therefore, it is possible to receive the transmission data at every data unit exactly based on the synchronizing signal.</p> |
