US4253169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic calculation watch with digital display
Assignee: SPACETRONIC SA
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Filing: 1978-02-07
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Granted: 1981-02-24
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Expires: 1998-02-07
Abstract
Abstract An electronic watch with circuitry to calculate and display time under the Moslem calendar.
Inventors
- 👤 Ibrahim M. Salah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:27
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0064; G04G9/0076; G04G9/08; G04G9/087
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
A timepiece comprising, in combination: clock means for keeping standard time and generating first data representative thereof; input means for inputting second data representative of a longitudinal position and a latitudinal position on the earth; ;p1 calculator means, responsive to said clock means and said input means, for generating third data representative of a series of times when the sun occupies, respectively, a series of predetermined positions relative to said longitudinal position, said latitudinal position, and the time of year as kept by said clock means; and display means, responsive to said calculator means, for numerically displaying said times.
Claim 2
Dependent Claim
99 words
A timepiece comprising, in combination: clock means for keeping standard time and generating first data representative thereof; input means for inputting second data representative of a longitudinal position and a latitudinal position on the earth; ;p1 calculator means, responsive to said clock means and said input means, for generating third data representative of a series of times when the sun occupies, respectively, a series of predetermined positions relative to said longitudinal position, said latitudinal position, and the time of year as kept by said clock means; and display means, responsive to said calculator means, for numerically displaying said times.
Claim 3
Dependent Claim
42 words
A timepiece as claimed in claim 1 wherein said series of times includes the time 90 minutes before sunrise, the time of sunrise, the time when the sun passes the meridian, the time of sunset and the time 90 minutes after sunset.
Claim 4
Dependent Claim
27 words
A timepiece as claimed in claim 1 wherein said display means includes three display lines, each of said three display lines being capable of displaying four characters.
Claim 5
Dependent Claim
23 words
A timepiece as claimed in claim 3 wherein one of said three display lines displays standard time as kept by said clock means.
Claim 6
Dependent Claim
33 words
A timepiece as claimed in claim 1 or claim 3 wherein said input means includes control means for selectively activating said display means to display a select one of said series of times.
Claim 7
Dependent Claim
32 words
A timepiece as claim in claim 5 wherein said control means permits actuation of said display means, such that three of said times are simultaneously displayed on said three line displays, respectively.
Claim 8
Dependent Claim
25 words
A timepiece as claimed in claim 5 wherein said display means further displays an identifying symbol in proximity to said select one of said times.
Claim 9
Dependent Claim
30 words
A timepiece as claimed in claim 7 wherein said calculator means actuates said display means so as to flash said identifying symbol associated with an upcoming time of said series.
Claim 10
Dependent Claim
65 words
A timepiece as claimed in claim 7 wherein said calculator means further includes detection means for comparing said first data and said third data and for flashingly activating said display means whenever said first data and said third data correspond, whereby said display means flashes said time and said symbol, so as to indicate the presence of the sun at one of said predetermined positions.
Claim 11
Dependent Claim
52 words
A timepiece as claimed in claim 1 wherein said calculator means further generates fourth data, in response to said input means, representative of a direction to a predetermined location on each from said longitudinal position and said latitudinal position, and said display means displays said direction in response to said calculator means.
Claim 12
Dependent Claim
29 words
A timepiece as claimed in claim 1 wherein said calculator means further generates fifth data, in response to said clock means and said input means, representative of Moslem time.
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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |