Appeal No. 1998-1322 Page 6
Application No. 08/454,068
The examiner fails to show a disclosure of the claimed
limitations in the prior art. Although Krause teaches
selecting between frame-based predictive encoding and field-
based predictive encoding, the selection is not based on which
encoding produces a smaller quantity of data. To the
contrary, the selection is based on which encoding is more
accurate. Specifically, the reference includes the following
passage.
[A]ccumulated errors from the respective frame and
field formatted paths are compared at a comparator
122, which provides an output signal at terminal 124
indicative of which path produced the least error
for a particular pair of pixel data blocks.
The output signal from the error evaluation and
selection components actuates switch 39 (FIG. 3) to
connect the compression path having the least error
to downstream processing circuitry. [Col. 8, ll. 49-
57.]
By selecting between frame-based predictive encoding and
field-based predictive encoding based on which encoding
technique produces a smaller error, Krause bases selection on
accuracy.
Selection based on the accuracy of data is not tantamount
to selection based on the quantity of the data. We see no
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