Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1991-06-10
1994-06-07
Oberley, Alvin E.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345143, 345157, G09G 116
Patent
active
053193849
ABSTRACT:
A graphical cursor in text mode is generated by replacing the characters on the display at positions under the cursor with new fonts comprising an image of the cursor superimposed on the image of the characters. The method of the present invention comprises the steps of: determining the new cursor position; restoring the characters at the old cursor position; saving a plurality of the characters near the new cursor position; building new fonts with the plurality of characters near the new cursor position and the cursor symbol; and replacing the plurality of characters at the new cursor position with the new fonts. The preferred method may further comprise the step of detecting the position and movement of the input device when mouse-type input devices are used.
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Isenberg Henri J.
Taub Manny
Novakoski Leo V.
Oberley Alvin E.
Radlo Edward J.
Saras Steven J.
Sueoka Greg T.
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