Appeal No. 2000-2247
Application 08/137,189
While it is true that Krause reconstructs and stores the
current image (col. 6, lines 12-19), the data is stored "for use
as the prior frame data when the next frame is being processed"
(col. 6, lines 17-19). The odd field store 22a and even field
store 22b hold odd and even fields of a prior frame. The motion
estimators 26, 28 identify the best match between each current
frame block to a previous frame in stores 22a, 22b and a
comparator 36 determines which of the "best matches" is closest
to the current frame being processed (col. 5, lines 55-65). When
the reconstructed current image is used as prior frame data it is
no longer a reconstructed current image. We have thoroughly
considered the Examiner's rationale, but find nothing in Krause
which teaches or suggests anything other than comparing a block
of a current field to a block of a prior field.
Krause states (col. 7, lines 51-55):
FIGS. 7 and 8 depict another embodiment of the present
invention wherein pixel data from a current field is
compared to similarly situated pixel data is a plurality of
prior fields. A comparison with any number of prior fields
can be accomplished. [Emphasis added.]
See also col. 8, lines 53-61. Clearly, figure 8 is not intended
to be combined with figure 4, but is an alternative embodiment.
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