Appeal No. 1997-0900
Application 08/371,039
Appellants have appealed to the Board from the examiner's
final rejection of claims 1 through 3 and 5 through 12, which
constitute all the claims remaining in the application.
Representative claim 7 is reproduced below:
7. Apparatus for compressing video signal in an MPEG
like format using both intraframe coding and interframe
coding, comprising:
a signal input terminal for applying said video signal;
a substractor having a first input terminal coupled to
said signal input terminal, a second input terminal and an
output terminal for providing residues having a range of
amplitude values between relatively larger amplitude values
and relatively smaller amplitude values;
compression means including transform means, for
compressing signal applied thereto, to generate compressed
video signal using said both intraframe coding and interframe
coding, wherein said residues are included in intraframe coded
and interframe coded compressed output data by said
compression means;
an image signal prediction means, including inverse
transform means, responsive to said compressed video signal
for generating intraframe and interframe predictive signals
representing predictions of video signal being encoded, said
predictive signals being coupled to the second input terminal
of said substractor; and
a nonlinear element, coupled between the output terminal
of said substractor and said compression means, for
attenuating residues having said relatively larger amplitudes
less than residues having said relatively smaller amplitudes.
The following references are relied on by the examiner:
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