US4002824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective zoom camera and display
Assignee: United States Department of the Navy
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Filing: 1976-01-28
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Granted: 1977-01-11
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Expires: 1996-01-28
Abstract
Abstract A means is provided to display a picture with a portion magnified while theest of the picture remains constant. The timing and clock rate applied to a solid state sensor (such as charge coupled devices or self-scanning photo-diode arrays) are adjusted so that the output of the sensor will provide a variable zoom video to be displayed by a standard TV monitor.
Inventors
- 👤 Edward A. Petrocelli
- 👤 Anthony C. H. Louie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:42
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/40; H04N25/44; H04N25/443; H04N25/70; H04N25/71; H04N25/745
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
An electronic control system for selectively controlling the scanning rate of a solid state sensor to display a picture with a portion being magnified while the remainder remains constant comprising: a. solid state sensor means for providing video output signals in response to being electronically scanned, b. variable scan generator means coupled to said solid state sensor for providing selectively controlled clock signals to drive said solid state sensor, c. display generator circuit means coupled to said solid state sensor and to said variable scan generator means for providing an output video signal that when displayed will display a picture with a portion being magnified while the remainder remains constant.
Claim 2
Dependent Claim
110 words
An electronic control system for selectively controlling the scanning rate of a solid state sensor to display a picture with a portion being magnified while the remainder remains constant comprising: a. solid state sensor means for providing video output signals in response to being electronically scanned, b. variable scan generator means coupled to said solid state sensor for providing selectively controlled clock signals to drive said solid state sensor, c. display generator circuit means coupled to said solid state sensor and to said variable scan generator means for providing an output video signal that when displayed will display a picture with a portion being magnified while the remainder remains constant.
Claim 3
Dependent Claim
33 words
The control system of claim 1 wherein said variable scan generator means includes a horizontal scan generator for providing horizontal scan clock signals for scanning said solid state sensor at two different rates.
Claim 4
Dependent Claim
25 words
The system of claim 2 wherein said horizontal scan generator includes means for changing the frequency of a portion of the horizontal scan clock signals.
Claim 5
Dependent Claim
34 words
The control signal of claim 1 wherein said variable scan generator means includes a vertical scan generator for providing vertical scan clock signals for scanning said solid state sensor at the two different rates.
Claim 6
Dependent Claim
24 words
The system of claim 4 wherein said vertical scan generator includes means for changing the frequency of a portion of the vertical scan signals.
Claim 7
Dependent Claim
29 words
The system of claim 1 wherein said display generator circuit means includes sequential delay circuit means for sequentially delaying the video from said sensor in increasing increments of delay.
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) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |