Appeal No.95-5026
Application 07/923,668
is identified. We note that Appellants' claim 1 recites these
means while Appellants' claim 13 recites method steps that
perform these functions. Appellants further emphasize in the
reply brief that Foley and Einkauf, either individually or
together, fail to teach the Appellants' invention which relates
to the reduction of redundant matrix transformations of shared
polygonal vertex data as recited in Appellants’ claims.
Einkauf teaches in column 1, lines 5-16, that their
invention relates in general to a method for determining the
intensity and color parameters used to render shaded patterns on
a video display. In column 2, lines 39-45, Einkauf teaches a
particularized implementation of their invention that involves
the use of triangular polygon regions. This particularized
implementation is further disclosed in column 4, line 6, through
column 5, line 31. There Einkauf discloses that the triangular
polygon is divided into a mesh of triangles and then the cross
product of the values relating to each vertex of the triangle is
calculated. However, Einkauf fails to teach a means for
identifying a shared vertex or a means for retrieving stored
world space data corresponding to said shared vertex and
supplying the retrieved world space data corresponding to said
5
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