Appeal No. 2002-1309 Page 2
Application No. 09/286,760
Representative claim 1 is reproduced as follows:
1. A method for changing a first bitrate of an encoded image
sequence having a plurality of frames, said method comprising the
steps of:
a) requantizing a block of transform coefficients within a
current frame of said encoded image sequence using a new
quantizer scale to generate a block of requantized transform
coefficients;
b) encoding said block of requantized transform coefficients
into an encoded image sequence having a second bitrate; and
c) storing a requantization error associated with said
requantization of said block of transform coefficients for
propagating said requantization error, if said current frame is
used as a reference frame.
The examiner relies on the following reference:
Singhal et al. (Singhal) 5,333,012 July 26, 1994
Claims 1-21 stand rejected under 35 U.S.C. § 103(a). As
evidence of obviousness the examiner offers Singhal taken alone.
Rather than repeat the arguments of appellant or the
examiner, we make reference to the brief and the answer for the
respective details thereof.
OPINION
We have carefully considered the subject matter on
appeal, the rejection advanced by the examiner and the evidence
of obviousness relied upon by the examiner as support for the
rejection. We have, likewise, reviewed and taken into
consideration, in reaching our decision, the appellant’s
arguments set forth in the brief along with the examiner’s
rationale in support of the rejection and arguments in rebuttal
set forth in the examiner’s answer.
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