US3804977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored running light simulator
Assignee: United States Department of the Navy
•
Filing: 1972-11-20
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Granted: 1974-04-16
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Expires: 1992-11-20
Abstract
Abstract In a periscope view simulator training device wherein a dynamic scene including ships at sea is displayed on a television monitor, colored running lights are provided for the displayed ships. This is accomplished using video signals from monochrome cameras.
Inventors
- 👤 C Driskell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:14
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063; H; H04; H04N; H04N11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
In a training device wherein a televised picture is displayed on a monitor to simulate a marine scene, the improvement comprising: a model having colored spheres positioned thereon to simulate lights, a monochrome television camera positioned to observe said model, a color television monitor for displaying said scene, selective connecting means connecting the video output of said camera to the red, blue, and green color inputs of said monitor, first beam splitter means interposed in the optical channel between said model and said camera for dividing light from said model into second and third channels, second beam splitter means in said third channel for dividing the light in said third channel into fourth and fifth channels, a ligHt filter in each of said fourth and fifth channels, and control means responsive to the light in said fourth and fifth channels for controlling said selective connecting means to connect the video signal from said camera to selected ones of said red, blue, and green color inputs to said color monitor in accordance with the color of said spheres.
Claim 2
Dependent Claim
177 words
In a training device wherein a televised picture is displayed on a monitor to simulate a marine scene, the improvement comprising: a model having colored spheres positioned thereon to simulate lights, a monochrome television camera positioned to observe said model, a color television monitor for displaying said scene, selective connecting means connecting the video output of said camera to the red, blue, and green color inputs of said monitor, first beam splitter means interposed in the optical channel between said model and said camera for dividing light from said model into second and third channels, second beam splitter means in said third channel for dividing the light in said third channel into fourth and fifth channels, a ligHt filter in each of said fourth and fifth channels, and control means responsive to the light in said fourth and fifth channels for controlling said selective connecting means to connect the video signal from said camera to selected ones of said red, blue, and green color inputs to said color monitor in accordance with the color of said spheres.
Claim 3
Dependent Claim
74 words
The apparatus of claim 1, said control means comprising: a first photodiode responsive to light in said fourth channel, a second photodiode responsive to light in said fifth channel, and gating means responsive to electrical output signals from said photodiodes for selectively gating the video output signal from said monochrome camera to the red, blue, and green inputs of said color television monitor in accordance with the light in said fourth and fifth channels.
Claim 4
Dependent Claim
164 words
The apparatus of claim 2, said gating means comprising: a first AND gate responsive to the output signal of said first photodiode, a second AND gate responsive to the output signal of said second photodiode, a first video gate having an output connection to the red color input of said monitor, a second video gate having an output connection to the blue color input of said monitor, and a third video gate having an output connected to the green color input to said monitor, a video connection to the input of each of said video gates to supply video signals from said camera, and a connection from the output of said first AND gate to respective control inputs of said first and second video gates and a connection from the output of said second AND gate to respective control inputs of said second and third video gates to control the gating of video signals to the red, blue, and green inputs of said monitor.
Claim 5
Dependent Claim
63 words
The apparatus of claim 3 and including a variable attenuator in each video connection to each input of said video gates, said attenuators being adjustable to attenuate the video signal applied to the red, blue, and green color inputs of said monitor so that a white light appears at the position of each blue colored sphere in the scene displayed on said monitor.
Claim 6
Dependent Claim
24 words
The apparatus of claim 4 and including a green filter in said fourth light channel and a red filter in said fifth light channel.
Claim 7
Dependent Claim
46 words
Apparatus according to claim 1, including a. means for rotating said model to selected bearings to bring selected of said spheres into view of said camera and automatically, by said rotation, switch said simulated lights on said monitor to correspond to the colored spheres in view.
References Cited (Backward Citations)
US3585281A
Cited
US3748374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |