G - Physics – 09 – G
Patent
G - Physics
09
G
375/46
G09G 1/00 (2006.01) G09G 5/20 (2006.01) G09G 5/391 (2006.01)
Patent
CA 1235536
SYSTEM AND METHOD FOR RASTER-SCAN DISPLAY ABSTRACT OF THE DISCLOSURE In system and method for smooth line raster-scan display, a frame buffer containing a high resolution map of information of an image for display is read so as to furnish plural line stored information for each single line of the raster display. Display circuitry of the system receives the plural line stored infor- mation and varyingly weights same to furnish such single line Z-axis information (intensity control) for an X-Y display matrix, such as a CRT display terminal. Means are included in the system for display of the entire frame buffer content on a first fractional basis, e.g., a two thousand line resolution buffer to five hundred line raster. Selection circuitry of the system provides for reading out only a fraction of the frame buffer content, e.g., one-fourth or the five hundred lines thereof, on five hundred raster lines, thus providing true resolution zoom capability.
466211
Dalrymple John C.
Preiss Richard B.
Kirby Eades Gale Baker
Tektronix Inc.
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