Appeal No. 2000-1425
Application No. 07/921,508
containing a selected electrical component corresponding to said
selected auditory component in said environmental sound;
an adaptive filter receiving said electrical input signal
and providing a filtered signal, said adaptive filter having
adaptable filtering characteristics based upon a reference and
being operable in response to activation to adapt said filtering
characteristics using said electrical input signal as said
reference to determine said filtering characteristics required to
filter said selected electrical component from said electrical
input signal, said adaptive filter continuing to provide said
filtered signal while adapting said filtering characteristics in
response to said activation;
a receiver receiving said filtered signal and converting
said filtered signal to said auditory stimulus; and
user-controlled activation means for activating said
adaptive filter at a time controlled by said user, whereby said
user can initiate adaptation of said filter without changing
operating characteristics of said filter other than as a result
of said adaptation.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Graupe et al. (Graupe) 4,783,818 Nov. 08, 1988
Harris et al. (Harris) 4,791,390 Dec. 13, 1988
Goodings et al. (Goodings) 5,259,033 Nov. 02, 1993
Widrow and Stearns, Adaptive Signal Processing, 1985, pp. 103-106
and 350 (Widrow)
Claims 1, 4, 6, 12, 14, 15, and 18 stand rejected under
35 U.S.C. § 103 as being unpatentable over Graupe in view of
Goodings.
Claims 7, 9, 11, 13, 16, and 17 stand rejected under
35 U.S.C. § 103 as being unpatentable over Graupe in view of
Goodings and Harris.
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