Appeal No. 2001-2593
Application No. 09/074,197
Claims 23 and 28 stand rejected under 35 U.S.C. § 102(b) as
being anticipated by Goldschmidt.
Claims 23 and 28 stand rejected under 35 U.S.C. § 103(a) as
being unpatentable over Nash.
We make reference to the answer (Paper No. 19, mailed April
5, 2001) for the Examiner’s reasoning, and to the appeal brief
(Paper No. 17, filed February 5, 2001)2 for Appellants’ arguments
thereagainst.
OPINION
With respect to the 35 U.S.C. § 102 rejection of the claims,
Appellants argue that latch registers 43 and 51 of Goldschmidt,
as characterized by the Examiner to be the same as the claimed
unclocked delay elements, are clocked (brief, page 5).
Appellants point out that the recited unclocked delay elements
synchronize the arrival of the intermediate result signals in the
adder circuits and reduce spurious switching of the adder
circuits (brief, page 4). Appellants further point to the
description of latch registers 24-29 in Goldschmidt (Col. 4,
lines 21-23) as the only description for a latch register and
2 The appeal brief was filed as a supplemental appeal brief to add a
statement regarding the cancellation of claim 15, which was omitted in the
originally filed appeal brief (Paper No. 15, filed October 4, 2000).
3
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