| 摘要 |
PURPOSE:To improve the time display accuracy of each slave clock and eliminate a trouble such as slave clock setting at the time of boosting a system. CONSTITUTION:A clock signal of high accuracy generated in a clock generation circuit 11 is converted to time data showing a time with the counter of a time data conversion circuit 12, and inputted to a display circuit 14, thereby showing a time. At the same time, the time data signal is inputted to a DTME conversion and output circuit 13, and converted to a DTME signal for output to a slave clock (1) 2. In this salve clock (1) 2, the DTME signal received with a receiving and conversion circuit 21 is converted to a time data signal, and inputted to a display circuit 23. A time is thus displayed, according to a time shown by the data signal. Also, the inputted DTME signal is amplified by a DTME output circuit 22 and sent to a succeeding slave clock (2) 3. |
