Appeal No. 2002-1427
Application No. 08/667,459
BACKGROUND
Appellant’s invention relates to a video camera system
capable of reducing color differences between a plurality of
cameras by adjusting their gains and DC offset values
(specification, page 1). According to Appellant, color matching
in conventional video camera systems cannot be achieved because
their gains and DC offset values of the cameras are fixed
(specification, page 4). Appellant presents a solution for the
above-mentioned problem by determining the color matching
coefficients of the cameras such that their red, green and blue
signals are adjusted to match those of a reference video camera
(specification, page 9).
Representative independent claim 1 is reproduced as follows:
1. A video camera comprising:
level detecting means for detecting the levels of red,
green and blue signals obtained through imaging operation;
and
color matching means for adjusting the gains and/or the
DC current offset values of said red, green and blue signals
according to one or more coefficients such that the
component color characteristics of the camera substantially
match the component color characteristics of a reference
camera, said coefficients being computed based on the levels
of said red, green and blue signals which are detected by
said level detecting means and levels of red, green and blue
signals detected in said reference camera.
2
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