Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1994-04-12
1996-01-09
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
345904, 348189, 348674, G09G 128, H04N 1700
Patent
active
054832594
ABSTRACT:
Methods for calibrating a display device, for instance, a computer monitor, that transduces digital inputs to regions of perceived color. The brightness control is calibrated by (1) supplying to the display device digital inputs that produce a black area and an adjacent dark gray area; (2) adjusting the brightness control of the display so that the black area and the gray area are distinguishable; and (3) slowly reducing the brightness control to the point that the black area and the gray area are indistinguishable. Also, the digital-input-to-perceived-color transducing of the display device is calibrated by: (1) supplying digital inputs to produce a white area and one or more color patch areas each having a perceived color other than white; (2) overlaying on the white area one or more filter chips that each produce a desired reference color; and (3) conforming the perceived color of each color patch and the perceived color produced by the corresponding filter chip by adjusting the digital input for the color patch or the filter value of the filter chip.
REFERENCES:
patent: 3443868 (1969-05-01), Mitchell
patent: 4037249 (1977-07-01), Pugsley
patent: 4200365 (1980-04-01), Keondjian et al.
patent: 4207589 (1980-06-01), Kawasaki
patent: 4406971 (1983-09-01), Takano et al.
patent: 4415921 (1983-11-01), Mulvanny et al.
patent: 4500919 (1985-02-01), Schreiber
patent: 4530011 (1985-07-01), Haddick
patent: 4547797 (1985-10-01), Mick
patent: 4593309 (1986-06-01), Uno et al.
patent: 4631576 (1986-12-01), St. John
patent: 4700218 (1987-10-01), Thomsen et al.
patent: 4760447 (1988-07-01), Koka et al.
patent: 4812879 (1989-03-01), Suzuki
patent: 4875032 (1989-10-01), McManus
patent: 5012299 (1991-04-01), Sawamura et al.
patent: 5103407 (1992-04-01), Gabor
patent: 5111243 (1992-05-01), Hatano
patent: 5119182 (1992-06-01), Tsuboi et al.
patent: 5121198 (1992-06-01), Maronian
patent: 5122708 (1992-06-01), Donofrio
patent: 5155588 (1992-10-01), Levien
patent: 5172224 (1992-12-01), Collette et al.
patent: 5212546 (1993-05-01), Arazi et al.
patent: 5218671 (1993-06-01), Liao et al.
patent: 5247358 (1993-09-01), Richards
patent: 5254978 (1993-10-01), Beretta
patent: 5311294 (1994-05-01), Cromer et al.
patent: 5313273 (1994-05-01), Griffin et al.
patent: 5325195 (1994-06-01), Ellis et al.
patent: 5334992 (1994-08-01), Rochat et al.
patent: 5345315 (1994-09-01), Shalit
Eli Peli; Display Nonlinearity in Digital Image Processing for Visual Communications; Nov. 1992; Harvard Medical School, Boston, Mass.
Edwin Catmull; A Tutorial on Compensation Tables; 1979; Old Westbury, New York.
William B. Cowan; An Inexpensive Scheme for Calibration of a Colour Monitor in Terms of Cie Standard Coordinates; Jul. 1983; Ontario, Canada.
Marcel P. Lucassen et al.; Evaluation of a Simple Method for Color Monitor Recalibration; Dec. 1990; Soesterberg, The Netherlands.
Digital Light & Color Inc.
Hjerpe Richard
Saras Steven J.
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