Appeal No. 1997-1203
Application 08/432,786
4] and particularly points out that “[Hatori shows] means for
subtracting a low frequency component from an intra-frame
difference signal for a frame and producing a first absolute
sum signal of a result of the subtracting (see S(picture),
201-203, 205, 206 of Figure 6A); ... ” [id. 4]. Appellant
disputes this [brief, pages 5 to 7]. Appellant argues [id. 5]
that “[t]he Examiner admits that element 205 of Figure 6A of
Hatori subtracts an ‘average’ signal which by definition is
not limited to subtracting a ‘low frequency’ component [as
called for by the claim].” Appellant further argues [id. 6]
that “[n]one of the
elements pointed to by the Examiner perform[s] a ‘subtraction
of low frequency components.’” The Examiner counters
[answer, pages 5 and 7] that:
[T]he delayed intraframe signal S(PICTURE) at
the output of 203 of Figure 6A essentially includes
low, intermediate, and high frequency components ...
that is being subtracted from intraframe difference
signal S(202) of Figure 6A of Hatori in order to
determine intra/inter-frame selections. Since the
low frequency component ... is included in the
subtraction (i.e., 205 of Figure 6A of Hatori), it
is the Examiner’s opinion that the particular
subtraction means as claimed in claim 7 is being
anticipated by Hatori.” [id. 5].
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