| 摘要 |
PURPOSE:To make sleeping hours audible automatically by setting the time ranging from the time of extinguishing a lamp to the sound stop time or the alarm time, as the sleeping hours, and informing said hours by following the sound stop operation. CONSTITUTION:The bedtime is latched by a latching circuit 33 by a pulse from a gate circuit 27 generated by extinguishing a lamp. When the alarm time of the next morning comes in a state that the alarm has been set, an alarm signal is sent out of an alarm circuit 8 by an output from a coinciding circuit 32 and a gate circuit 15. When the sound is stopped by turning off an alarm set switch 28, the rising time is latched by a latching circuit 34 by a pulse from a differentiating circuit 20, and the sleeping hours ranging from going to bed to rising are calculated by an operating circuit 35. In this way, a message for informing the sleeping hours is generated from a sound generating circuit 7, and informed from a sounding device 9. |
