Appeal No. 1998-1895 Page 6
Application No. 08/425,990
F.2d 1443, 1445, 24 USPQ2d 1443, 1444 (Fed. Cir.
1992).... "A prima facie case of obviousness is
established when the teachings from the prior art
itself would appear to have suggested the claimed
subject matter to a person of ordinary skill in the
art." In re Bell, 991 F.2d 781, 782, 26 USPQ2d
1529, 1531 (Fed. Cir. 1993) (quoting In re Rinehart,
531 F.2d 1048, 1051, 189 USPQ 143, 147 (CCPA 1976)).
With these principles and finding in mind, we consider the
examiner's rejections and appellant's argument.
The combination of references applied in each of the
examiner's rejections includes the subcombination of Schreiber
in view of van der Wal. Regarding the subcombination, the
examiner asserts, "[i]t would have been obvious ... to use the
pyramid filtering of van der Wal, since the system of van der
Wal also applies to coding as noted in col. 20, lines 63-68,
which is commonly used in subband image coding, because van
der Wal further provides for image enhancement and noise
reduction, and because both Schreiber and van der Wal obtain
edge data." (Examiner's Answer at 5.) The appellant argues,
"van der Wal would not lead an ordinarily skilled person to
modify Schreiber ...." (Appeal Br. at 17.)
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