Computer graphics processing and selective visual display system – Data responsive crt display control – Data responsive deflection control
Patent
1992-09-11
1993-09-14
Hjerpe, Richard
Computer graphics processing and selective visual display system
Data responsive crt display control
Data responsive deflection control
345 20, 345185, G09G 110
Patent
active
052453235
ABSTRACT:
A graphic image is displayed on a CRT screen according to the coordinate data which is sequentially read out of a memory. The memory comprises a first storage area which stores character image coordinate data and a second storage area which stores graphic image data such as signal wave. The ratio of addressing times for the first and second storage areas of the memory is set to 1:n. Accordingly, the graphic image is irradiated on the CRT screen n times more than that of one character image. Since the irradiation period of time of each spot is defined by a clock pulse width, there is no irradiation variation from one spot to another spot.
REFERENCES:
patent: 3872461 (1975-03-01), Jarosik et al.
patent: 3976991 (1976-08-01), Hickin et al.
patent: 4165506 (1979-08-01), Brands et al.
patent: 4241340 (1980-12-01), Raney, Jr.
patent: 4251815 (1981-02-01), Dagostino
patent: 4484187 (1984-11-01), Brown et al.
patent: 4510571 (1985-04-01), Dagostino et al.
patent: 4559535 (1985-12-01), Watkins et al.
patent: 4634970 (1987-01-01), Payne et al.
patent: 4639721 (1987-01-01), Eto et al.
patent: 4647922 (1987-03-01), Saxe
patent: 4684935 (1987-08-01), Fujisaku et al.
UM Laid-Open Gazette No. 60-13587, published Jan. 29, 1985 "Character Display Circuit for Oscilloscope" by M. Izawa/UM Application No. 58-105743 filed Jul. 7, 1983, Kikusu Electronic Industry Inc.
Nikkei Electronics 1984 12.3 pp. 145-159 "Universal Type Oscilloscope with High Operability and Digital Storage Function".
Hjerpe Richard
Kabushiki Kaisha Kenwood
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