Acoustic alarm setting device for a timepiece
First Claim
1. In an electronic timepiece having a timekeeping ciruit providing timing pulses and display-actuating means moving at least one hand indicating passage of time, and having an alarm including a piezoelectric transducer and an alarm for producing an alarm sound, an improved alarm setting device comprising:
- a rotatable ring mounted on said timepiece having an indicia for aligning with said hand in a first rotated position,acoustic means associated with said ring producing a plurality of clicks of preselected acoustic level to said transducer when said ring is rotated to a second rotated position,a pulse conditioning circuit connected to said transducer and providing a pulse for each click,first counting means counting the number of pulses corresponding to the number of clicks between said first and second rotated positions, andlogic means connected to said timekeeping circuit and arranged to actuate said alarm after passage of an elapsed time which is proportional to the number of counted pulses.
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Accused Products
Abstract
An electronic alarm timepiece has a rotatable ring producing clicks when the ring is rotated from a first position aligned with one of the hands to a second position at which the alarm will be actuated when the hand reaches such position. The clicks are transmitted to the electronic timepiece logic through the same piezoelectric transducer which produces the alarm sound. The logic means actuates the alarm after an elapsed time which is proportional to the number of clicks counted when the ring is rotated.
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Citations
13 Claims
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1. In an electronic timepiece having a timekeeping ciruit providing timing pulses and display-actuating means moving at least one hand indicating passage of time, and having an alarm including a piezoelectric transducer and an alarm for producing an alarm sound, an improved alarm setting device comprising:
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a rotatable ring mounted on said timepiece having an indicia for aligning with said hand in a first rotated position, acoustic means associated with said ring producing a plurality of clicks of preselected acoustic level to said transducer when said ring is rotated to a second rotated position, a pulse conditioning circuit connected to said transducer and providing a pulse for each click, first counting means counting the number of pulses corresponding to the number of clicks between said first and second rotated positions, and logic means connected to said timekeeping circuit and arranged to actuate said alarm after passage of an elapsed time which is proportional to the number of counted pulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification