Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1997-04-04
1999-11-30
Breene, John E.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345339, 345974, G06F 300
Patent
active
059950790
ABSTRACT:
A user interface receives user input representative of movement of a mouse pointer relative to a datum point. This datum point is established as a origin with four quadrants. The movement is determined to be either in a first sense or an opposite second sense relative to the datum point. A variable responsively increments when the movement is in the first sense and responsively decrements when the movement is in the second opposite sense. The user may move the pointer in a generally circular or spiral pattern in a clockwise or counterclockwise sense about the origin until the desired value is attained.
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Mondry A. Michael
Sheasby Michael C.
Talavera Luis
Avid Technology Inc.
Breene John E.
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