Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1991-09-25
1994-05-10
Weldon, Ulysses
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345185, G09G 102
Patent
active
053112113
ABSTRACT:
Method and apparatus of providing a display on a raster-scanned screen (1) from data stored in a video random access memory (8) having row and column addresses (6,7) for the storage elements, wherein the display area of the screen (1) is divided into a plurality of identical rectangular areas or "tiles". Addressing of the video random access memory (8) is derived by converting the screen raster-scanning signals via conversion circuits (5) such that sequential addressing of entire rows of storage elements of the video random access memory (8) corresponds to a description of all of the rectangular areas in turn, wherein the number of rectangular areas across the screen width is not equal to an integral power of 2.
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patent: 4958302 (1990-09-01), Fredrickson
Donaldson Richard L.
Hiller William E.
Luu Matthew
Texas Instruments Incorporated
Weldon Ulysses
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