| 摘要 |
PURPOSE:To remove the complexity of minute hand indication and the second hand indication for simplifying time adjustment by eliminating the second hand indication when adjusting time in the case of clock having the hand indication through an electron optic indication device. CONSTITUTION:When a switch 35 is closed, the divider 2 and the second counters 4, 5 are reset, while the gate circuit 30 is opened. When manually the time adjusting pulse 34 is generated, the counters 6-9 change the contents according their input pulse to change the minute indication section speed of revolution. On the other hand, while the counter 11 is reset by the adjusting pulse, the flip-flop circuit 28 is reset. According the gate circuit 13, 16 hold a closed state and the second indication goes out. |
