Appeal No. 1999-2449
Application No. 08/745,584 Page 2
BACKGROUND
Appellant's invention relates to flexible motion estimation
architecture. An understanding of the invention can be derived
from a reading of exemplary claims 1 and 15, which are reproduced
as follows:
1. A method of temporal compression of a digital video data
stream, comprising the steps of:
hierarchically searching in at least one hierarchical search unit
for pixels in a reference picture to find a best match macroblock
therein corresponding to a current macroblock;
constructing a motion vector of offset between the best match
macroblock and the current macroblock;
passing the motion vector from the at least one hierarchial
search unit to a refinement search unit; and
performing a refinement search around the offset of the best
match macroblock.
15. A search processor for digital video motion estimation,
said search processor comprising:
a hierarchical search unit; and
a refinement search unit connected to the hierarchical search
unit via a best match diff/offset bus.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Gonzales et al (Gonzales) 5,414,469 May 9, 1995
Kopet et al (Kopet) 5,448,310 Sep. 5, 1995
Greenfield et al (Greenfield) 5,526,054 Jun. 11, 1996
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