| 摘要 |
PURPOSE:To decrease the number of counters and to realize the low powder consumption by computing the difference between the start time data stored in a data memory circuit and the time in a basic counter. CONSTITUTION:At the time of the start of the stopwatch, the watch data from a second, minute, hour control circuit 7 of a basic watch is stored in a stopwatch timer data region 8. At the same time, since the counted value of a 1/100sec counter is given to the region 8, the start time data of the stopwatch is stored in the region 8. When the stopwatch is stopped, the value of the stopwatch can be obtained by subtracting the start time data from the time of the basic watch in an operation control circuit 9. At this time, only the 1/100sec counter 10 is operated. In the case of the timer, the same procedure is applied. Thus the low power consumption can be realized. |
