Appeal No. 1999-0487
Application No. 08/554,425
using linear interpolation to achieve a desired compression
ratio. The claimed invention would be useless if applied to
image data which did not have this relationship. Therefore,
the type of image data is critical in evaluating the claimed
invention.
Thus, the angiographic image sequences of claims 1 and 7
are critical to the method recited in those claims. The
examiner has failed to demonstrate that the prior art teaches
or suggests the performance of the specific method recited in
claims 1 and 7 with respect to angiographic image sequences as
recited in these claims. The linear interpolation discussed
in the applied prior art has nothing to do with interpolating
between two quantization values having the relationship that
angiographic image sequences have as recited in claims 1 and
7. Therefore, we do not sustain the examiner’s rejection of
claims 1 and 7.
With respect to claims 5 and 8, appellant argues that the
relationship between quantization factor and average
compression ratio as claimed is critical to the performance of
the claimed method and the applied prior art does not teach or
suggest this relationship as discussed above. The examiner
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