| 摘要 |
PURPOSE:To transmit data and a clock at the same time on the same transmission line by changing one level of a ternary code in response to the clock and changing the other levels of the ternary code in response to the data and transmitting them. CONSTITUTION:A time (equal to a clock period t1) of one period of a transmission code 3 consists of four parts of t2, t3, t4 and t5, and the code is at the same level as that of the clock 1 at the time t2, becomes the same level as the data 2 in the time 44 and becomes a reference level between the times t3 and t5. The figure 4 shows an example where the transmission code formed in this way is the code constitution at the code string 1000011. At the reception side, the reception signal is identified by a threshold value corresponding respectively to the clock level and the data level, a signal component corresponding respectively to the clock and data is extracted and shaped to regenerate the original clock and data. |
