US4303997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog alarm timepiece
Assignee: Suwa Seikosha KK
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Filing: 1980-02-22
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Granted: 1981-12-01
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Expires: 2000-02-22
Abstract
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.
Inventors
- 👤 Toshiaki Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:25
CPC Classifications
G; G04; G04G; G04G19/00; G04G19/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
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.
Claim 2
Dependent Claim
155 words
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.
Claim 3
Dependent Claim
88 words
A miniaturized analog quartz crystal timepiece as claimed in claim 1, and further including a transformer for driving said sound generator, said transformer comprising first coil connected with said second circuit means to produce said intermittent signal for driving said sound generator and second coil connected to said sound generator, said second coil being formed of a driving coil of said step motor, and said first coil being wound on the same coil-core as said second coil so as to be put on top of said second coil.
Claim 4
Dependent Claim
83 words
A miniaturized analog quartz crystal timepiece as claimed in claim 1, and further including a transformer for driving said sound generator, said transformer comprising first coil connected with said second circuit means to produce said intermittent signal for driving said sound generator and second coil connected to said sound generator, said second coil being formed of a driving coil of said step motor, and said first coil being wound on the extension of a coil-core of said driving coil of said step motor.
Claim 5
Dependent Claim
33 words
A miniaturized analog quartz crystal timepiece as claimed in claim 1, wherein said intermittent signal for driving said step motor has frequency of N/60 Hz, N representing a value from 1 through 60.
Claim 6
Dependent Claim
41 words
A miniaturized analog quartz crystal timepiece as claimed in claim 1, wherein said second circuit means to produce said intermittent signal for driving said sound generator has a switch means actuated by an input from an coincidence detecting mechanism of timepiece.
Claim 7
Dependent Claim
20 words
A miniaturized analog quartz crystal timepiece as claimed in claim 5, wherein said coincidence detecting mechanism of timepiece is electronic.
Claim 8
Dependent Claim
49 words
A miniaturized analog quartz crystal timepiece as claimed in claim 1, wherein master slave flip-flops are used for said divider, said first circuit means to produce said intermittent signal for driving said step motor and said second circuit means to produce said intermittent signal for driving said sound generator.
Claim 9
Dependent Claim
39 words
A miniaturized analog quartz crystal timepiece as claimed in claim 1, wherein said second circuit means has means to count one hour and means to deliver one time indicating sound signal according to a signal supplied from said means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |