US4125993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital display devices with remote updating
Assignee: Individual
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Filing: 1976-07-02
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Granted: 1978-11-21
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Expires: 1996-07-02
Abstract
Abstract Digital display devices and digital timepieces in which the display is remotely updated. The method permits continuous updating with simple and inexpensive TTL Logic and less frequent updating with microprocessor means. The remote updating signal can be transmitted through telephone means, broadcast means or other standard communications means to simultaneously update multiple digital displays. A single improved digital display device can be utilized as a master for controlling the display of multiple devices.
Inventors
- 👤 Philip Emile, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:17
CPC Classifications
G; G04; G04G; G04G99/00; G04G99/006; G04G3/00; G04G3/02; G04G3/025; G04G9/00; G04G9/08; G04G9/082
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
In a digital display device having a display multiplexer and microprocessor means for controlling and updating the display, the improvement comprising: oscillator means and memory means whereby said oscillator means periodically interrupts the microprocessor means to update data stored in the said memory means and thereafter said microprocessor means operates the display multiplexer from said data in said memory means until further interruption from said oscillator means.
Claim 2
Dependent Claim
67 words
In a digital display device having a display multiplexer and microprocessor means for controlling and updating the display, the improvement comprising: oscillator means and memory means whereby said oscillator means periodically interrupts the microprocessor means to update data stored in the said memory means and thereafter said microprocessor means operates the display multiplexer from said data in said memory means until further interruption from said oscillator means.
Claim 3
Dependent Claim
25 words
In the digital display device of claim 1, the further improvement comprising: external data input means for updating the data stored in said memory means.
Claim 4
Dependent Claim
24 words
In the digital display device of claim 2, the further improvement comprising: output means for transfer of display data to another digital display device.
Claim 5
Dependent Claim
19 words
In the digital display device of claim 2, said external data input means comprises a universal asynchronous receiver transmitter.
Claim 6
Dependent Claim
15 words
In the digital display device of claim 1, said digital display device comprises a timepiece.
Claim 7
Dependent Claim
15 words
In the digital display device of claim 1, said digital display device comprises a telephone.
Claim 8
Dependent Claim
15 words
In the digital display device of claim 2, said digital display device comprises a timepiece.
Claim 9
Dependent Claim
15 words
In the digital display device of claim 3, said digital display device comprises a timepiece.
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) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |