摘要 |
PURPOSE:To report surely alarm set by reporting an extracted tone for a prescribed time in accordance with setting of plural alarm tones. CONSTITUTION:When an alarm set switch 16 is operated for alarm set, an FF24 is set through a monostable multivibrator 22, and a transistor 32 is turned on, and the power source of an ROM34 is turned on. Melody information selected by an alarm tone selecting switch 68 is read out from the ROM34, and a part of the melody tone selected through a frequency divider 44 and a tone generating circuit 45 is reported through an end note detector decoder 38, an AND gate 52, etc. until the FF24 is reset. By this tone reporting, alarm set is reported surely.
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