| 摘要 |
PURPOSE:To let the current time be recognized by the times of alarm and timbres of alarm sounds according to the count number of the time counter at the time of calling the alarm by generating two different minute count state signals according to the count states of a minute counter. CONSTITUTION:The outputs of a minute counter 14 and hour counter 16 are converted to display signals in a system logic circuit 2 and the current time is being displayed in a display device 3. At the time of recognizing the current time by alarm sound, the alarm-calling switch out of an operation switch group 1 is opered by which the alarm call signal AR is established to set a control circuit 10 then set a control circuit 11. A control circuit 15 generates two different minute count state signals according to the count state of the minute counter 14 and an alarm sound generating circuit 4 produces the alarm sounds by the times corresponding to the output pulse number of the alarm signal A1 or A2 outputted from the control circuit 11. |
