US4123896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital electronic timepiece
Assignee: Seiko Instruments Inc
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Filing: 1976-10-08
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Granted: 1978-11-07
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Expires: 1996-10-08
Abstract
Abstract A digital electronic timepiece has normal time counting means and also a different time counting means, for example for local time in a different time zone or country. Electronic switching is provided for selectively displaying either the normal time or the different time. Each of the time counting means includes up-counting means and down-counting means so that under the control of corresponding setting means the time of either the normal time counting means or the different time counting means can be amended either upwardly or downwardly.
Inventors
- 👤 Kazuhiro Asano
- 👤 Takehiro Ishikawa
- 👤 Kazumasa Yasuda
- 👤 Takashi Ishijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:36
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/08; G04G9/087; G04G9/0076
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
179 words
A digital electronic timepiece comprising means for generating a time standard signal, frequency dividing means for dividing said time standard signal to produce a divided signal, first time counting means for counting said divided signal to generate a first time signal, second time counting means for counting said divided signal to generate a second time signal said second time counting means comprising an up/down counter, digital time display means for displaying a time signal, manually controlled display selecting means for connecting said first and second time counting means alternatively with said display means for displaying said first time signal or said second time signal respectively, manually controlled means for amending the count of said first time counting means, manually controlled means for amending the count of said second time counting means selectively to increase the count or to decrease the count of said second time counting means, and means for connecting said second time counting means with said first time counting means to transfer the time signal of said first time counting means to said second time counting means.
Claim 2
Dependent Claim
179 words
A digital electronic timepiece comprising means for generating a time standard signal, frequency dividing means for dividing said time standard signal to produce a divided signal, first time counting means for counting said divided signal to generate a first time signal, second time counting means for counting said divided signal to generate a second time signal said second time counting means comprising an up/down counter, digital time display means for displaying a time signal, manually controlled display selecting means for connecting said first and second time counting means alternatively with said display means for displaying said first time signal or said second time signal respectively, manually controlled means for amending the count of said first time counting means, manually controlled means for amending the count of said second time counting means selectively to increase the count or to decrease the count of said second time counting means, and means for connecting said second time counting means with said first time counting means to transfer the time signal of said first time counting means to said second time counting means.
Claim 3
Dependent Claim
18 words
A digital electronic timepiece according to claim 1, further comprising manually controlled means for resetting said dividing means.
Claim 4
Dependent Claim
30 words
A digital electronic timepiece according to claim 1, comprising manually controllable electronic switching means for connecting each of said time counting means with said dividing means and said amending means.
Claim 5
Dependent Claim
41 words
A digital electronic timepiece according to claim 1, in which said display selecting means comprises electronic switching means for selectively connecting said first and second time counting means with said display means and manual switch means controlling sid electronic switching means.
Claim 6
Dependent Claim
31 words
A digital electronic timepiece according to claim 1, which each of said first and second time counting means comprises a ten minutes counter, an hour counter and a twelve hours counter.
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) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |