US3678680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
An electronic timepiece
Assignee: Suwa Seikosha KK
•
Filing: 1971-02-24
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Granted: 1972-07-25
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Expires: 1991-02-24
Abstract
Abstract A resetting apparatus for an electronic timepiece wherein a frequency divider circuit having a logic circuit incorporating complimentary MOST is provided with a control means for resetting said divider circuit which is also connected to the input amplifier of said divider circuit to cut said input amplifier off.
Inventors
- 👤 Kinji Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:47
CPC Classifications
G; G04; G04G; G04G3/00; G04G3/02; G04G5/00; G04G5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
37 words
A circuit for an electronic timepiece, comprising a frequency divider circuit, an input amplifier coupled to the input of said divider circuit; a control element for simultaneously resetting said divider circuit and cutting off said input amplifier.
Claim 2
Dependent Claim
37 words
A circuit for an electronic timepiece, comprising a frequency divider circuit, an input amplifier coupled to the input of said divider circuit; a control element for simultaneously resetting said divider circuit and cutting off said input amplifier.
Claim 3
Dependent Claim
18 words
A circuit as recited in claim 1, wherein said frequency divider includes a logic circuit incorporating complementary MOST.
Claim 4
Dependent Claim
16 words
A circuit as recited in claim 1, wherein said frequency divider circuit is a ripple counter.
Claim 5
Dependent Claim
38 words
A circuit as recited in claim 1, wherein said divider circuit includes a multistep flip-flop circuit incorporating MOST, each of said flip-flop steps operating at a low frequency as compared to the input signal to said divider circuit.
References Cited (Backward Citations)
US3194003A
Cited
US3534544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |