Appeal No. 1996-3193
Application 08/160,112
Appellants' arguments are not supported by the claim
language. As discussed above, we conclude that adding the
absolute value Z = #X-Y# in Taniguchi to a running sum of
absolute values of the differences would have been obvious
because Appellants did not challenge the Examiner's rejection
on this point. Thus, Taniguchi would conditionally either add
(X-Y) to the running sum of absolute values of the differences
at the output if (X-Y) was positive or would add -(X-Y) to the
running sum of absolute values of the differences at the
output if (X-Y) was negative (one of ordinary skill in the art
of computer arithmetic would have recognized that adding
-(X-Y) is the same as subtracting (X-Y)). Taniguchi does not
both add the difference to the running sum and subtract the
difference from the running sum and then discard one result as
argued by Appellants. Taniguchi does compute both the
difference and the two's complement of the difference and
discards one, but this is not precluded by claim 1.
Appellants refer to the limitation in claim 1 that
recites "forming a sum of the absolute value of the difference
between each pair of numbers of respective first and second
sets of numbers." Appellants argue that Taniguchi "teaches
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