US3781846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection storage-display system having dynamic graphic capability
Assignee: Corning Glass Works
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Filing: 1971-07-15
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Granted: 1973-12-25
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Expires: 1991-07-15
Abstract
Abstract A visual display system includes a projection type display device. This includes a stored image photochromic type device and a dynamic cathode ray device. The stored image tube is normally used for the display of alpha numerics and vectors in response to digital inputs. The dynamic cathode ray device is normally used to produce a cursor on the display. Dynamic refresh memory for the dynamic cathode ray tube gives this device the capability of selectively erasing, editing and inserting graphic information on the display.
Inventors
- 👤 W Eichelberger
- 👤 L Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:52
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/001; G09G3/002; G09G5/00; G09G5/08; Y; Y10; Y10S; Y10S348/00; Y10S348/902
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
172 words
A display system comprising: a display screen, a stored image display device including: means for generating a cathode ray beam, a photochromic element responsive to said cathode ray beam for storing and for displaying visual information on said display screen, and deflection means for controlling said cathode ray beam to control the position on said display screen at which said information is displayed, means for producing deflection signals and a brightness control signal for said display device in response to digital signals representing said visual information, a dynamic display device for displaying visual information superimposed on the information displayed by said stored image display device on said display screen, said Dynamic display device having deflection means for controlling the position on the display screen at which said information is displayed, means for concurrently driving the deflection means of said stored image and said dynamic display devices, and a dynamic refresh digital memory for said dynamic display device, said dynamic refresh memory containing and controlling the information displayed by said dynamic storage device.
Claim 2
Dependent Claim
172 words
A display system comprising: a display screen, a stored image display device including: means for generating a cathode ray beam, a photochromic element responsive to said cathode ray beam for storing and for displaying visual information on said display screen, and deflection means for controlling said cathode ray beam to control the position on said display screen at which said information is displayed, means for producing deflection signals and a brightness control signal for said display device in response to digital signals representing said visual information, a dynamic display device for displaying visual information superimposed on the information displayed by said stored image display device on said display screen, said Dynamic display device having deflection means for controlling the position on the display screen at which said information is displayed, means for concurrently driving the deflection means of said stored image and said dynamic display devices, and a dynamic refresh digital memory for said dynamic display device, said dynamic refresh memory containing and controlling the information displayed by said dynamic storage device.
Claim 3
Dependent Claim
32 words
The system recited in claim 1 wherein said display devices each produce visual images and wherein said system includes a projection system for superimposing the two visual images on said display screen.
Claim 4
Dependent Claim
53 words
The system recited in claim 1 further comprising an analog position input device for generating digital signals indicating the position that the device is moved to by the operator, said digital signals being applied to said dynamic refresh memory so that said system can be operated in a dynamic graphic mode of operation.
Claim 5
Dependent Claim
53 words
The system recited in claim 1 further comprising: a key board for generating digital signals in response to operator actuation of the keyboard, said keyboard generated digital signals being inserted into said dynamic refresh memory so that said system can be employed to edit alphanumeric information displayed by said stored image display device.
Claim 6
Dependent Claim
17 words
The system recited in claim 1 wherein said stored image display device has a photochromic memory element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |