Appeal No. 1999-0166
Application No. 08/656,544
select clocks of different frequencies (e.g.,
a test clock or a system clock) because it would
provide Greenberger’s system with the enhanced
capability of software selection of system and
test clock speeds.
The Sakai reference is added to the Examiner’s proposed
combination to provide an asserted teaching of accessing an
auxiliary circuit when executing a program instruction from a
subset of programs “ . . . because it would provide the system
taught by Greenberger & Ganapathy with the ability to
efficiently switch the clock to an arbitrary value as required
[col. 7, lines 34-36].” (Id. at 6).
In response, Appellant asserts a failure by the Examiner
to establish a prima facie case of obviousness since, even if
combined in the manner suggested by the Examiner, the
references “ . . . are still deficient of any disclosure or
suggestion of the claimed subject matter . . . . ” (Brief,
page 7). After careful review of the applied prior art
references in light of the arguments of record, we are in
agreement with Appellant’s position as stated in the Briefs.
In our view, the Examiner has combined the general clock
frequency selection features of Ganapathy with the circuit
testing system of Greenberger in some vague manner without
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