US3081557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abstract visual display system
Assignee: General Precision Inc
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Filing: 1960-04-06
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Granted: 1963-03-19
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 John R Mailhot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:14
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/301
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A VISUAL DISPLAY SYSTEM FOR SIMULATING THE APPEARANCE OF AIRFIELD LANDING LIGHTS AS SEEN FROM A SHIFTING VIEWPOINT COMPRISING A CATHODE RAY TUBE AND INCLUDING HORIZONTAL AND VERTICAL CONTROL CIRCUITS TO POSITION AN ELECTRON BEAM, A BINARY COUNTER, AN ELECTRONIC CLOCK FOR PROVIDING A SAWTOOTH SIGNAL TO THE HORIZONTAL CONTROL CIRCUITS AND A PLURALITY OF PULSES TO THE BINARY COUNTER, A FUNCTION GENERATOR INCLUDING A BINARY TO ANALOG CONVERTER CIRCUIT COUPLED TO SAID BINARY COUNTER FOR PROVIDING CONTROL SIGNALS TO SAID CONTROL CIRCUITS TO CONTROL THE VERTICAL POSITION OF SAID ELECTRON BEAM, AND UNBLANKING MEANS RESPONSIVE TO ADDITIONAL SIGNALS DERIVED FROM SAID FUNCTION GENERATOR FOR UNBLANKING SAID ELECTRON BEAM SELECTIVELY TO PROVIDE THE DESIRED VISUAL DISPLAY.
Claim 2
Dependent Claim
116 words
A VISUAL DISPLAY SYSTEM FOR SIMULATING THE APPEARANCE OF AIRFIELD LANDING LIGHTS AS SEEN FROM A SHIFTING VIEWPOINT COMPRISING A CATHODE RAY TUBE AND INCLUDING HORIZONTAL AND VERTICAL CONTROL CIRCUITS TO POSITION AN ELECTRON BEAM, A BINARY COUNTER, AN ELECTRONIC CLOCK FOR PROVIDING A SAWTOOTH SIGNAL TO THE HORIZONTAL CONTROL CIRCUITS AND A PLURALITY OF PULSES TO THE BINARY COUNTER, A FUNCTION GENERATOR INCLUDING A BINARY TO ANALOG CONVERTER CIRCUIT COUPLED TO SAID BINARY COUNTER FOR PROVIDING CONTROL SIGNALS TO SAID CONTROL CIRCUITS TO CONTROL THE VERTICAL POSITION OF SAID ELECTRON BEAM, AND UNBLANKING MEANS RESPONSIVE TO ADDITIONAL SIGNALS DERIVED FROM SAID FUNCTION GENERATOR FOR UNBLANKING SAID ELECTRON BEAM SELECTIVELY TO PROVIDE THE DESIRED VISUAL DISPLAY.
References Cited (Backward Citations)
US2916736A
Cited
US2832953A
Cited
US2771593A
Cited
US2859538A
Cited
US2902670A
Cited
US2889636A
Cited
GB767489A
Cited
US2754493A
Cited
US2988821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |