Appeal No. 1998-2556
Application 08/571,044
Representative claim 1 is reproduced as follows:
1. Apparatus for compressing an image representative
video signal containing pixel data comprising:
means for estimating noise in said video signal and
providing an output;
means for generating residues having lower and higher
amplitude components, said residues representing differences
of pixel values between predicted pixel values and real pixel
values of a current frame of said video signal being
compressed;
nonlinear processing means, coupled to said generating
means, for attenuating lower amplitude residues greater than
higher amplitude residues and providing processed residues at
an output, wherein a transfer function of said nonlinear
processing means is responsive to said noise estimate; and
transform means for transforming said processed residues
and providing a compressed video data output.
The examiner relies on the following references:
Zdepski et al. (Zdepski) 5,005,082 Apr. 02, 1991
Ishii et al. (Ishii) 5,051,826 Sep. 24, 1991
Stott et al. (Stott) 2,196,205 Apr. 20, 1988
(UK Application)
Grotz et al. (Grotz) 0,346,636 Dec. 20, 1989
(European Application)
The following rejections are on appeal before us:
1. Claims 10 and 11 stand rejected under 35 U.S.C. §
112, second paragraph, for failing to particularly point out
and distinctly claim the invention.
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