| 摘要 |
PURPOSE:To stop an alarm information by a user's voice by detecting an external sound when the alarm information is being executed, converting its external sound to a digital signal, and comparing this digital signal with an alarm informing voice data from a voice ROM. CONSTITUTION:When set time comes, an output of a coinciding circuit 12 becomes H, by which a Q output of an FF22 becomes H. As a result, an AND gate 24 is opened, and an address counter 28 starts its operation and generates a sound signal from a sound signal generating circuit 26. As a result, a voice of ''Good morning'' is generated from a sounding circuit 40. This voice is detected by an external sound detecting circuit 48, converted to a digital signal by an A/D converter 54 and inputted to a detecting circuit 56. In this case, if a user generates some voice, an output signal of the detecting circuit 56 becomes H, and the Q output of the FF22 becomes L. Therefore, the AND gate 24 is closed, a constant period signal phi1 is not inputted to the address counter 28, and the voice being an alarm information stops. |
