Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1995-11-13
1999-04-20
Saras, Steven J.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345133, 345431, 345432, G09G 100
Patent
active
058961216
ABSTRACT:
A data-dependent color display for vector data separates chrominance from a video signal as a pair of orthogonal chrominance components. The pair of chrominance components are used as addresses to access a vector memory. An intensity value at the location within the vector memory accessed by the chrominance pair of addresses is incremented by each such access. During a display cycle the intensity values from the vector memory are converted into color values as a function of their locations within the vector memory. The color values are displayed in a display area on a display screen to provide a colored vector display where the color at any point along the vector display is a function of the point's angular position with respect to a center of the display and distance from the center. A decay function may be applied periodically to the intensity values, and a varying color border may be provided for the display area where the color at any point along the border is a function of that point's angular position with respect to the center. Alternatively the display area may be colored to represent color space and the intensity values are displayed in contrasting white or black against such background.
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Gray Francis I.
Saras Steven J.
Suraci John
Tektronix Inc.
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