Analog alarm timepiece
AssigneeKabushiki Kaisha Suwa Seikosha
InventorToshiaki Saito
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Abstract
Since a button-type battery having the minimum capacity is used for wristwatch, the battery voltage is dropped when power is temporarily consumed. When a step motor consuming much power every second and a buzzer for alarm mechanism operate at the same time, current in quantities flows into these two loads. In result, the battery voltage is dropped and the wristwatch runs down. Therefore, this invention aims to shift the timings of those loads' operations.
Claims8
In a miniaturized analog quartz crystal timepiece having a quartz crystal vibrator as a time standard, a step motor for driving a display mechanism of timepiece and an electric sound generator, the improvement comprising:
- a battery for driving said step motor and said sound generator;
- a divider made up of a plurality of divider stages to divide frequency of said quartz crystal vibrator into low frequency for timepiece;
- first circuit means connected with said divider to produce an intermittent signal for driving said step motor;
- and
- second circuit means connected with said divider to produce an intermittent signal for driving said sound generator;
- whereby said intermittent signal for driving said sound generator supplied from said second circuit means is out of phase with said intermittent signal for driving said step motor supplied form said first circuit means, and the phase difference is wider than pulse width of said intermittent signal for driving said step motor.
Dependencies are inferred from the claim text.