Appeal No. 1999-2018
Application 08/571,204
Claims 1-4 and 6-8
Anticipation
The limitation at issue in claim 2 is "selecting a
predictive coding mode based upon the values of [distance]."
We find this limitation anticipated by Sugiyama because:
(1) it only requires selecting one ("a") predictive coding
mode based on distance, not one of several predictive coding
modes based on distance, and is met by Sugiyama's selection
of the bidirectionally predictive mode based on distance;
and (2) the term "distance" does not distinguish over the
forward and backward estimation error values in Sugiyama,
which are used to select one of three predictive coding
modes.
(1)
Appellant argues that Sugiyama uses inter picture
distances "only to generate predicted picture signals in a
bidirectional prediction mode, and not to select a
prediction mode from among a multiple of available
prediction modes" (Br8). It is argued that because the
weight "W" is described as "0 < W < 1" (col. 11, line 3) for
the bidirectional predictive mode, which does not include
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