| 摘要 |
PURPOSE:To simplify a circuit for correcting time by driving a pulse motor for analog display by a one-minute signal of a second-counter for digital display. CONSTITUTION:The outputs of a digital display second-counter 13 and an hour and minute counter 14 are given to a digital display 101 via a digital display device 17 and the hour, minute, and second are digitally displayed. The one-minute signal b of the digital display second counter 13 is given to the pulse motor of an analog display 19 via a driver 16, and the hour and minute are analogously displayed. When the return to zero second operation of an external switching group 18 is performed to adjust the time to the time signal, the second counter is reset, a carrying signal is outputted, and one minute is advanced both in the digital and ananlg displays, if the contents of the counter 13 are under the counting state of 30 seconds or more. If the contents of the second-counter 13 is not more than 30 seconed, only the second- counter 13 is reset. |
