US3821793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual simulator employing two color television system
Assignee: Lockheed Martin Tactical Systems Inc
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Filing: 1972-06-08
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Granted: 1974-06-28
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Expires: 1992-06-08
Abstract
Abstract A TWO-COLOR, HIGH RESOLUTION VIDEO GENERATION SYSTEM. AN OBJECT IS SCANNED BY A TELEVISION CAMERA THROUGH A ROTATING COLOR WHEEL WHICH HAS ALTERNATING FILTER SEGMENTS OF TWO DIFFERENT COLORS. THE CAMERA OUTPUT SIGNAL IS TRANSMITTED TO A TELEVISION PROJECTOR WHICH PROJECTS THE IMAGE THROUGH A SECOND ROTATING COLOR WHEEL TO A SCREEN. THE SECOND ROTATING COLOR WHEEL ALSO HAS FILTERS ARRANGED IN ALTERNATE SEGMENTS PREFERABLY OF THE SAME TWO COLORS DEPENDING ON TEH APPLICATION. MEANS ARE PROVIDED FOR MAINTAINING THE TWO-COLOR WHEELS IN A SYNCHRONOUS ROTATION AND FOR MAINTAINING THE TELEVISION CAMERA AND PROJECTOR IN SYNCHRONIZATION WITH ONE ANOTHER AND WITH THE COLOR WHEELS.
Inventors
- 👤 E Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N23/00; H04N23/10; H04N23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |