Appeal No. 95-1423
Application 07/928,883
Havel clearly teaches transforming a given input color for the
background of a character to a different output color in order
to improve contrast. Nopp teaches transformation of the
brightness of a character itself, as opposed to transformation
of the back- ground. As discussed above, one of ordinary
skill in the art would have known to combine these teachings
to actually trans-form the color of the character in a color
display, in order to improve contrast and legibility.
Appellant further argues that neither Nopp nor Havel
teaches a color look-up table. We disagree. When evaluating
references for purposes of obviousness, it is proper to take
into account not only the specific teachings of the
references, but also the knowledge of the skilled artisan.
E.g., In re Graves, 69 F.3d 1147, 1152, 36 USPQ2d 1697, 1701
(Fed. Cir. 1995), cert. denied, 517 U.S. 1124 (1996); In re
Preda, 401 F.2d 825, 826, 159 USPQ 342, 344 (CCPA 1968). As
we found above, the disclosure of Nopp suggests a “color look-
up table” in its description of UM1.
Furthermore, this teaching combined with the teachings of
color
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