Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-09-04
1993-11-09
Perkey, W. B.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
354482, 354106, 358 29, G03B 1724, H04N 964
Patent
active
052607399
ABSTRACT:
This invention relates to a camera in which the color of a photographing light source is colorimetered to thereby obtain colorimetry information. This invention provides a camera of the above-described type in which provision is made for a sensor for measuring the colors of the photographing light source in different directions from the camera and the direction to be measured by the sensor is detected and is designated on the basis of the object distance and the color of the light source in the designated direction.
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patent: 4626893 (1986-12-01), Yamanaka
patent: 4887121 (1989-12-01), Pritchard
patent: 4914738 (1990-04-01), Oda et al.
patent: 5016094 (1991-05-01), Kaneko
patent: 5053871 (1991-10-01), Ogawa et al.
patent: 5087936 (1992-02-01), Ogata et al.
Canon Kabushiki Kaisha
Perkey W. B.
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