US3265812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video signal generator
Assignee: International Business Machines Corp
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Filing: 1963-12-31
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Granted: 1966-08-09
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Essinger Pierre
- 👤 Evon C Greanias
- 👤 Philip F Meagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:55
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/257
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
A VIDEO SIGNAL GENERATOR COMPRISING MEANS FOR CREATING AND PROJECTING ONTO AN IMAGE TO BE TRANSMITTED A MOVIGN SPOT OF LIGHT TRACING A SCAN RASTER TO EXPLORE INCREMENTAL-AREA REFLECTION BRIGHTNESS CONTRASTS OF SAID IMAGE, A SOURCE OF ELECTRICAL ENERGIZATION, A PHOTOMULTIPLIER TUBE ENERGIZED BY SAID SOURCE AND RESPONSIVE TO LIGHT ENERGY REFLECTED FROM SAID IMAGE FOR GENERATING AN ELECTRICAL VIDEO SIGNAL, A VIDEO PEAK DETECTOR AND LOWPASS VIDEO AMPLIFIER RESPONSIVE TO RELATIVELY SLOW CHANGES IN THE PEAK AMPLITUDE OF SAID VIDEO SIGNAL FOR CONTROLLING SAID ENERGIZATION SOURCE TO VARY THE MULTIPLICATION RATIO OF SAID TUBE INVERSELY WITH SAID SLOW CHANGES OF SAID VIDEO SIGNAL PEAK AMPLITUDE, AND A VIDEO PEAK DETECTOR AND HIGH-PASS VIDEO AMPLIFIER RESPONSIVE TO MORE RAPID CHANGES IN THE PEAK AMPLITUDE OF SAID VIDEO SIGNAL FOR CONTROLLING SAID ENERGIZING SOURCE TO VARY THE MULITPLICATION RATIO OF SAID TUBE INVERSELY WITH SAID RAPID CHANGES OF SAID VIDEO SIGNAL PEAK AMPLITUDE.
References Cited (Backward Citations)
US3002048A
Cited
US3170032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |