Appeal No. 1999-2258
Application No. 08/431,720
graphics and system memory (column 9, lines 40-43).” In
summary, appellants argue (reply brief, page 3) that:
Lehman does not teach a system that “at one time the
datapath circuit receives data from the main memory
and at another time the data path circuit receives
the data from the video memory” (Claim 1). Lehman
instead routes graphics and system data through
separate buses having separate address ranges making
it physically impossible for Lehman’s graphics
circuitry to receive data from the main memory at
one time and at another time data from video memory.
We agree with appellants’ arguments. Thus, the 35 U.S.C.
§ 102(e) rejection of claims 1 through 14 is reversed because
the “datapath circuit” disclosed by Lehman is incapable of
receiving data from main memory for graphics processing.
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