Appeal No. 2002-1632
Application No. 08/941,785
determining a difference bit (id.). In particular, the Examiner
asserts that “a reference bit (i.e. MODE bit from input 103)
designates whether the coding is based on a normal mode (i.e.
macroblock intra coding) or interframe coding mode” (answer,
pages 5 & 6).
A rejection for anticipation under section 102 requires that
the four corners of a single prior art document describe every
element of the claimed invention, either expressly or inherently,
such that a person of ordinary skill in the art could practice
the invention without undue experimentation. See Atlas Powder
Co. v. Ireco Inc., 190 F.3d 1342, 1347, 51 USPQ2d 1943, 1947
(Fed. Cir. 1999); In re Paulsen, 30 F.3d 1475, 1478-79, 31 USPQ2d
1671, 1673 (Fed. Cir. 1994).
After a review of Fujii, we agree with Appellant’s assertion
that the claimed encoding the selected macroblock based on the
difference determined between a selected macroblock and an
adjacent macroblock and assigning a difference bit, are absent in
the reference. Fujii relates to correcting errors of reproduced
images and constructing images which cannot be corrected (col. 2,
lines 9-16). The encoding circuit relied on by the Examiner
(element 7 in Figure 2) is a part of the circuit used for error
correction (col. 3, lines 44-50). As depicted in figure 7, if
5
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