Appeal No. 1997-3223
Application 08/228,050
of Weng, further in view of Arnold.
Rather than repeat the positions of the appellant and the
examiner, reference is made to the various briefs and answers
for the respective details thereof.
OPINION
We reverse.
Each of independent claims 21 and 29 requires a
computerized analysis of image data to determine a set of
medial axis points, the definition of an extrusion vector in
three spatial dimensions, and the definition of displayed data
where the data is selected such that it lies within a set of
vectors that both are parallel to the extrusion vector and
also pass through one of the medial axis points. Stated more
simply, the key point of these claims is that such medial axis
must be computed in three dimensions from which is formed a
surface including all vectors parallel to an extrusion vector
which also pass through this medial axis.
The above medial axis required of each independent claim
on appeal is not reasonably taught or suggested to the
artisan, in our view, among the teachings and suggestions of
-3-
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