| 摘要 |
A clock alarm deactivation system for a clock with an alarm switch for turning on an alarm device at a preset time. The alarm device can be deactivated by manually operating in sequence a series of pushbutton switches. Each pushbutton switch in the sequence is randomly selected and is identified by an individual indicator light. When setting the clock alarm, the user adjusts a selector control that will select the number of pushbutton switches that the user will be required to push in sequence in order to totally deactivate the alarm device. When the clock alarm sounds at the preset time, simultaneously the first pushbutton switch randomly selected is activated and its identifying indicator light is turned on. After the user pushes the first-activated pushbutton switch the alarm is temporarily silenced and the device will randomly select the second pushbutton switch in the sequence and turn on its respective indicator light. The alarm device will remain silenced so long as the user pushes the next pushbutton switch within a specified time after its indicator light has been turned on. Provided that the user successfully follows this procedure for the remaining pushbutton switches selected in the sequence, the alarm will be totally deactivated. If the user takes longer than the specified time to push an active pushbutton switch, the alarm will resume operation and the random pushbutton switch deactivation process will return to its starting point.
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