Appeal No. 2003-0796
Application No. 09/260,031
to support the agency’s conclusion.” In re Lee, 277 F.3d 1338,
1344, 61 USPQ2d 1430, 1434 (Fed. Cir. 2002).
Our review of Hannah confirms that the reference relates to
an apparatus and a method for performing texture mapping in which
one or more interpolators produce outputs to be displayed (col.
2, lines 40-53). Foley on the other hand merely refers to
subroutine packages and processes that work with homogeneous
coordinates and transformation and, as argued by Appellants
(brief, pages 8 & 9), is not related to graphical displaying of
textured images or texture coordinates included in interpolated
data. We also agree with Appellants (reply brief, pages 2 & 3)
that the interpolator of Hannah performs resampling (col. 5,
lines 14-16) and addition or averaging (col. 7, lines 24-29), but
not division of the coordinates included in the interpolation
data by the homogeneous term q. In fact, the Examiner’s position
that Hannah’s interpolator could be used for dividing the
homogeneous coordinates of a texture is, at best, speculative
since there is no teaching or suggestion in the reference to
support a division using the homogeneous coordinates (s,t) and
the homogeneous term q, as recited in claim 6.
5
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