| 摘要 |
A digital alarm timepiece including a signal generator for generating a repetitive time standard signal having a rate defining a unit of time, and a time counting circuit for counting the time standard signal to develop a count representative of seconds, minutes and hours. The timepiece further includes a date counting circuit for developing a count representative of date. A timer counting circuit stores a count corresponding to minutes and hours remaining before an alarm time and is connected to the time counting circuit for counting down the count corresponding to minutes and hours before the alarm time in response to advancing of the count stored in the time counting circuit. A display cooperates with the counters to display date, hours, minutes and seconds according to the respective counts stored in the counters. An alarm responds to the count developed by the time counter circuit for developing an alarm signal when the count developed by the time counter circuit is counted down to zero. A selecting circuit selectively applies the count of the time counting circuit and the timer counting circuit to the display for respectively displaying present time and time remaining to the alarm in order to operate the timepiece in either a normal timekeeping mode or a timer mode.
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