Appeal No. 94-3710
Application 07/777,608
bits for each sub-cache; it is not a separate cache, let alone
the segment descriptor cache of appellant's claim 1. To the
extent that the presence bit indicates an association, it is
an association between the data cache entry and the entry in
main memory. Thus, Kaplinsky does not disclose an inclusion
bit which indicates an association between an entry in the
data cache and an entry in the segment descriptor cache, as is
recited in step (f) of appellant's claim 1.
B. Cepulis does not make up for
the deficiencies in Kaplinsky
The examiner relies on Cepulis as teaching a segment
descriptor cache management system which includes a segment
descriptor cache for storing segment descriptors in a second
format. Examiner’s Answer, at 4. The examiner states that
Cepulis teaches checking to see if the segment descriptor has
been altered and, if so, flushing the descriptor cache. Id.
at 3 (citing Figure 6C of Cepulis). The examiner also relies
on Cepulis as teaching a segment selector specifying a segment
descriptor in the descriptor table and retrieving said
descriptor in response to a segment selector. Id. at 4. The
examiner concludes that it "would have been obvious to one
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