Appeal No. 96-2994
Application 08/282,413
Since we agree with appellants that there is no basis
to combine the teachings of Corthout with Bentley, we do not
sustain the rejection of the claims based on these two prior
art documents.
With respect to the rejection of claims 1 and 14 based
on Corthout and Fuchs, appellants argue that there is no
motivation to combine the teachings of these references, and
that the collective teachings of these references, even if
properly combined, would not teach the invention as recited in
these claims. We agree.
Although Fuchs is at least related to Corthout to the
extent that they both deal with the graphical display of
environments, Fuchs does not teach or suggest the method or
circuitry recited in claims 1 and 14. Fuchs is primarily
concerned with static world models. Fuchs notes that the
binary space partitioning (BSP) algorithm requires that the
entire BSP-tree must be rebuilt whenever the world model
changes. This is a very time consuming process. Fuchs does
suggest that the process can be simplified by limiting the
movement of objects in the world model [page 68]. The types
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