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Patent US3975846A successfully refreshed from Google Patents.
US3975846A
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Electronic calendar system
Assignee: Individual
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Filing: 1975-01-27
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Granted: 1976-08-24
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Expires: 1995-01-27
Abstract
Abstract Methods and circuitry by which standard solid state, incadescent, or chemical alpha or numeric displays may be excited in proper sequence either from an A.M. or P.M. indicator, or any other electronic pulse, whether initially derived from an electrical or mechanical source, that appears one or more times during a 24 hour period.
Inventors
- 👤 Leon S. Wecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:38
CPC Classifications
G; G09; G09D; G09D3/00; G09D3/12; G04; G04G; G04G9/00; G04G9/02; G04G9/04; G04G9/045
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
An electronic calendar for use as an attachment to a conventional electronic clock producing an AM pulse every 24 hours; the electronic calendar including a binary counter encoder adapted to be driven by an AM pulse of a conventional electronic clock to produce an output of binary encoded digits, a decoder driver connected to the output of the binary counter encoder to be activated thereby, a visual display means connected to the decoder driver to be driven thereby to display calendar indicia, and reset means for resetting the binary counter encoder at predetermined pulse intervals, and wherein said binary counter encoder and decoder driver are each integrated circuits combined in a single unit.
Claim 2
Dependent Claim
113 words
An electronic calendar for use as an attachment to a conventional electronic clock producing an AM pulse every 24 hours; the electronic calendar including a binary counter encoder adapted to be driven by an AM pulse of a conventional electronic clock to produce an output of binary encoded digits, a decoder driver connected to the output of the binary counter encoder to be activated thereby, a visual display means connected to the decoder driver to be driven thereby to display calendar indicia, and reset means for resetting the binary counter encoder at predetermined pulse intervals, and wherein said binary counter encoder and decoder driver are each integrated circuits combined in a single unit.
Claim 3
Dependent Claim
17 words
The electronic calendar defined in claim 1 wherein said display means includes a plurality of light-emitting diodes.
Claim 4
Dependent Claim
15 words
The combination defined in claim 1 wherein the outputs of the decoder driver are transistors.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |