Appeal 2007-0333
Application 09/966,802
INTRODUCTION
The claims are directed to varying a filter that processes an audio
signal without introducing audible artifacts. Specifically, the filter is
engaged or disengaged gradually by changing the filter’s coefficients. Claim
1 is illustrative:
1. A method of time varying filtering, comprising:
a. filtering a segment of a signal using a filter; and
b. disengaging the filter in a sequence of graduated steps at the
end of the segment; and
c. repeating steps a and b until all segments have been filtered.
The Examiner relies on the following prior art reference to show
unpatentability:
Sakata US 5,140,541 Aug. 18, 1992
The rejection as presented by the Examiner is as follows:
Claims 1, 7, 13, and 19-22 are rejected under 35 U.S.C. § 102(b) as
being anticipated by Sakata.
Rather than repeat the arguments of Appellants or the Examiner, we
make reference to the Briefs and the Answer for their respective details.
Only those arguments actually made by Appellants have been considered in
this decision. Arguments which Appellants could have made but chose not
to make in the Briefs have not been considered and are deemed to be
waived. See 37 C.F.R. § 41.37(c)(1)(vii) (2004).
2
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