Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1994-09-20
1998-07-28
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
345 22, 348189, G09G 504
Patent
active
057868034
ABSTRACT:
A system for correcting an output device for the effects reflected ambient illumination comprises an output device, a calibration memory, a reflectivity memory, a system memory, a processor, an input device, a video card, a color display memory, and a reflection device of known reflectivity. The color display memory stores a first graphical interface and a second graphical interface. The first graphical interface displays a range of intensities of outputs that the display device can generate. The second graphical interface displays a range of hues that the display device can generate. The reflection device defines an aperture. The reflection device is compared to the first graphical interface and the second graphical interface by viewing the interfaces through the aperture. The present invention includes a method for compensating an output device for reflected ambient illumination. The system receives a first input of an intensity of the first graphical interface that appears to match the ambient illumination reflected from the reflection device; the system then receives a second input of a hue of the second graphical interface that appears to match the ambient illumination reflected from the reflection device. The system determines the intensity and hue of the ambient illumination reflected from the output device by matching the intensity and hue of the ambient illumination reflected from the reflection device with the output of the output device. The system then adjusts the outputs of the output device to compensate for the reflected ambient illumination.
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Cappels, Sr. Richard D.
Devine Jesse Michael
Hernandez Mathew
Apple Computer Inc.
Hjerpe Richard
Kim Juliana S.
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