US3746782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrunken raster with image insetting
Assignee: United States Department of the Navy
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Filing: 1971-11-04
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Granted: 1973-07-17
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Expires: 1991-11-04
Abstract
Abstract Means for insetting a foreground image in a background image in a television display. A combination of electronic and optical elements function to cut out a part of the background image the exact shape of the foreground image. The foreground image is then optically inserted in the cut-out space in the background image.
Inventors
- 👤 C Driskell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:02
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063; H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/272
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
230 words
In a device having a television system to display foreground images on a background image to simulate an environment, the improvement comprising: a foreground object, a foreground camera positioned to observe said object and to generate video signals representing said object, a foreground monitor connected to receive said video signals and to display an image of said object, a background scene, a background camera positioned to observe said background scene and to generate background video signals representing said background, a background monitor connected to receive said background video signals and to display an image of said background, an insetting camera positioned to observe said image of said object and to generate video signals representing said image of said object, a video gate connected to pass background video signals from said background camera to said background monitor, means connecting the output of said insetting camera to said video gate to inhibit the passage of background video signals through said gate when said insetting camera has a video output signal to form a cutout in said background image in the shape of said foreground object, optical means for inserting said foreground image in said cutout in said background image, said optical means including a beam splitter positioned in the optical path between said foreground monitor and said insetting camera, and in the optical path between said background monitor and an observer''s position.
Claim 2
Dependent Claim
230 words
In a device having a television system to display foreground images on a background image to simulate an environment, the improvement comprising: a foreground object, a foreground camera positioned to observe said object and to generate video signals representing said object, a foreground monitor connected to receive said video signals and to display an image of said object, a background scene, a background camera positioned to observe said background scene and to generate background video signals representing said background, a background monitor connected to receive said background video signals and to display an image of said background, an insetting camera positioned to observe said image of said object and to generate video signals representing said image of said object, a video gate connected to pass background video signals from said background camera to said background monitor, means connecting the output of said insetting camera to said video gate to inhibit the passage of background video signals through said gate when said insetting camera has a video output signal to form a cutout in said background image in the shape of said foreground object, optical means for inserting said foreground image in said cutout in said background image, said optical means including a beam splitter positioned in the optical path between said foreground monitor and said insetting camera, and in the optical path between said background monitor and an observer''s position.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1, said optical means including polarizing means for excluding said background image from the field of view of said insetting camera.
Claim 4
Dependent Claim
52 words
The apparatus of claim 2, said polarizing means including a first polarizing plate positioned between said background monitor and said beam splitter, a second polarizing plate positioned between said insetting camera and said beam splitter, said polarizing plates being oriented to exclude said background image from the view of said insetting camera.
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |