US4079450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Input-output-color-screen system
Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
•
Filing: 1975-10-21
•
Granted: 1978-03-14
•
Expires: 1995-10-21
Abstract
Abstract An input-output-color-screen system is provided having a color display screen device and a microcomputer having an associated working memory which is used as a screen refreshing memory, and a minidisc storage device for storing information signals. A virtual key board including symbols is provided on a section of the screen, and a light pen with associated control means is used to manually select desired symbols for display.
Inventors
- 👤 Rudi Grimm
- 👤 Max Syrbe
- 👤 Herbert Truck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
G; G06; G06T; G06T17/00; G06T17/20; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/023; G06F3/0238; G06F3/048; G06F3/0484; G06F3/04842
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
159 words
An input-output color screeen system comprising a. a color display screen device (1); b. a microcomputer (2) connected so as to provide to said color display device data and control signals; c. working memory means (3) in said microcomputer for providing screen refreshing signals for said color display screen device; d. mini disc storage means (4) connectd to said microcomputer for storing data signals, said data being supplied to said display screen through said microcomputer; e. output processor means (10) coupled between said microcomputer and said display screen; f. manual control means (6) connected to said output processor means for selectively controlling said screen refreshing and said information signal outputs from said output processor means to said display screen; g. a virtual keyboard including symbols (20) displayed on a portion of said screen; and h. light pen means (7) connected to said manual control means for selecting a symbol to be displayed on the remaining portion of said screen.
Claim 2
Dependent Claim
159 words
An input-output color screeen system comprising a. a color display screen device (1); b. a microcomputer (2) connected so as to provide to said color display device data and control signals; c. working memory means (3) in said microcomputer for providing screen refreshing signals for said color display screen device; d. mini disc storage means (4) connectd to said microcomputer for storing data signals, said data being supplied to said display screen through said microcomputer; e. output processor means (10) coupled between said microcomputer and said display screen; f. manual control means (6) connected to said output processor means for selectively controlling said screen refreshing and said information signal outputs from said output processor means to said display screen; g. a virtual keyboard including symbols (20) displayed on a portion of said screen; and h. light pen means (7) connected to said manual control means for selecting a symbol to be displayed on the remaining portion of said screen.
Claim 3
Dependent Claim
35 words
The system of claim 1 further comprising a display panel (15) adjacent said color display screen connected to the output of said microcomputer for providing a supplemental display of all signals provided by said microcomputer.
Claim 4
Dependent Claim
29 words
The system of claim 1 further comprising curve generator means (13) coupled between said output processor means and said display screen for displaying a preselected curve on said screen.
References Cited (Backward Citations)
US3418459A
Cited
US3534396A
Cited
US3653001A
Cited
US3786479A
Cited
US3811113A
Cited
US3697678A
Cited
US3800288A
Cited
US3895357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |