US3833764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple viewing surface display
Assignee: Singer Co
•
Filing: 1972-12-14
•
Granted: 1974-09-03
•
Expires: 1992-12-14
Abstract
Abstract The faces of a pair of cathode ray tubes are optically combined to provide a viewing surface. The beam of each cathode ray tube traces a display raster, the lines thereof being optically combined to overlap and the modulation of a video signal being selectively gated therewith to vary the intensity of the beams, thereby providing a modulated composite raster for producing a desired scene having a desired deployment on the viewing surface. The composite raster appears to an observer as being traced by a single beam which has an intensity in accordance with the video signal.
Inventors
- 👤 A Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:27
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/002
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
310 words
Apparatus for displaying an image generated by a plurality of cathode ray tubes comprising: a source for producing video signals representative of a desired scene; control means for providing control signals, including signals applied to said video source for controlling the selection of said desired scene represented by said Produced video signals; a plurality of cathode ray tubes responsive to said video signals for reproducing said desired scene and positioned such that a selected portion of the viewing surface of each cathode ray tube is optically combined to overlap a selected portion of the viewing surface of an adjacent cathode ray tube; deflection means connected to said cathode ray tube for providing deflection signals to generate display raster lines on the viewing surface of said cathode ray tubes; synchronization means responsive to a timing signal and said control signals for providing synchronization signals to synchronize producing of said video signals with the generation of said display raster lines on said viewing surfaces of said cathode ray tubes, and for synchronizing the generation of raster lines on each CRT to form a composite raster of composite raster lines, each of said composite raster lines being simultaneously traced on said overlapping portion of the viewing surfaces of adjacent cathode ray tubes; and gating means responsive to said control signals and said synchronization signals for applying said video signals to selected ones of said plurality of cathode ray tubes during the generation of a raster line thereon such that said desired scene is reproduced and selectively positioned on one or more of said cathode ray tubes, said video signals being applied to only one cathode ray tube at a time except said video signals are simultaneously applied to adjacent cathode ray tubes when said composite raster lines are generated in said overlapping portions of said viewing surfaces of said adjacent cathode ray tubes.
Claim 2
Dependent Claim
310 words
Apparatus for displaying an image generated by a plurality of cathode ray tubes comprising: a source for producing video signals representative of a desired scene; control means for providing control signals, including signals applied to said video source for controlling the selection of said desired scene represented by said Produced video signals; a plurality of cathode ray tubes responsive to said video signals for reproducing said desired scene and positioned such that a selected portion of the viewing surface of each cathode ray tube is optically combined to overlap a selected portion of the viewing surface of an adjacent cathode ray tube; deflection means connected to said cathode ray tube for providing deflection signals to generate display raster lines on the viewing surface of said cathode ray tubes; synchronization means responsive to a timing signal and said control signals for providing synchronization signals to synchronize producing of said video signals with the generation of said display raster lines on said viewing surfaces of said cathode ray tubes, and for synchronizing the generation of raster lines on each CRT to form a composite raster of composite raster lines, each of said composite raster lines being simultaneously traced on said overlapping portion of the viewing surfaces of adjacent cathode ray tubes; and gating means responsive to said control signals and said synchronization signals for applying said video signals to selected ones of said plurality of cathode ray tubes during the generation of a raster line thereon such that said desired scene is reproduced and selectively positioned on one or more of said cathode ray tubes, said video signals being applied to only one cathode ray tube at a time except said video signals are simultaneously applied to adjacent cathode ray tubes when said composite raster lines are generated in said overlapping portions of said viewing surfaces of said adjacent cathode ray tubes.
Claim 3
Dependent Claim
73 words
The apparatus of claim 1 wherein said video source is a TV camera and said control signals applied to said video source are positioning signals for controlling the scene viewed by said camera, said camera including means for generating a viewing raster such that said produced video signals are representative of the instantaneous view along a line of sight from the optical input of said camera to a point on said desired scene.
Claim 4
Dependent Claim
43 words
The apparatus of claim 1 wherein said control signals provided by said control means also include index signals applied to said gating means, which index signals are indicative of that cathode ray tube viewing surface on which said reproduced scene is to begin.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |