Appeal No. 2002-1632
Application No. 08/941,785
the input image data is determined to be from an error block
(S101) and normal reproduction is not selected (S102), an
intrafield interpolation circuit is activated based on the output
of an error pattern detection circuit (S103) (col. 5, line 56
through col. 6, line 5). The intrafield interpolation data is
formed by using the image data of the blocks adjacent the error
block in the order specified in steps S104 through S107 (col. 6,
lines 6-32). Therefore, instead of the claimed encoding a
selected macroblock based on its difference compared to an
adjacent macroblock, Fujii reconstructs an error block by
intrafield interpolation based on the data from two adjacent
blocks, provided that the adjacent blocks are not error blocks.
We find Appellant’s arguments distinguishing the claimed
encoding macroblocks based on a difference from an adjacent
macroblock over Fujii’s reconstruction of an error block from the
data contained in adjacent blocks, to be persuasive. As
discussed above, what the Examiner characterizes in Fujii as the
step of determining a difference is actually the step of forming
the intrafield interpolation data by using the image data of two
blocks adjacent the error block in order to reconstruct the error
block data. Similarly, the Examiner neither points to any
specific portion of Fujii for disclosing the difference bit
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