| 摘要 |
PURPOSE:To prevent missed setting of an alarm, by performing the stopping of alarm sounds and the setting for the following day with single operation employing means of setting A.M. and P.M. CONSTITUTION:It is assumed that A.M. is set by opening a switch (SW)2 and after an alarm is set by closing a sound locking SW4, an alarm SW3 is set for 6 o'clock. On the other hand, when a SW1 is closed with the current time entering P.M., the output of a gate circuit 8 gives '1'. So, when the SW3 is closed at 6 o'clock P.M., the output of a gate circuit 10 will be '1' while an FF circuit 7 is set by the output of a gate circuit 9 to close a gate circuit 11 and hence, no alarm will be generated. As scores of minute elapse and the SW3 is opened, the output of the circuit 10 turns to '0' and a circuit 7 is reset. With the entry of A.M., the SW1 is opened and a circuit 8 turns to '0'. When the SW3 is opened and a circuit 8 turns to '0'. When the SW3 is closed at 6 o'clock A.M., the output of the circuit 10 turns to '1', which makes the circuit 11 open to generate 6 an alarm sound. Then, the SW2 is operated to set for the following day simultaneously with the sound locking. |
