Appeal No. 96-4014
Application 08/192,939
execution of a lower level fuzzy computer (FCb, FCc). FC 2
applies a plurality of fuzzy rules stored in fuzzy rule storage 9
(figure 4; col. 4, lines 9-14) to a waveform produce unit 50 in
fuzzy rule register 11 which generates fuzzy membership functions
(col. 6, lines 13-33). The fuzzy reasoning unit 14 generates a
belongings degree and the reasoning is converted into an affirmed
value in the defuzzifier 69 (cols. 6-8). While the hardware is
complex, Hisano is seen to perform a typical fuzzy logic
operation of applying a plurality of fuzzy logic rules to a
plurality of input variable values, to get an affirmed or decided
value which is an aggregation of weighted values.
Contrary to appellants' arguments that "Hisano has nothing
to do with control but only to an improved reasoning computer
system" (Brief, pages 10 and 16), Hisano does teach that the
system can be used for control. See col. 3, lines 3-6: "Thus
executed final reasoning results are displayed by a display
included in the higher rank computer 1 or applied to other system
associated therewith as control signal" (emphasis added).
The level of ordinary skill is not argued, so we find Hisano
to be representative of the level of ordinary skill in the art in
fuzzy logic computers and the admitted prior art to be
representative of the level of ordinary skill in the art of
control systems for turboshaft engines. See In re Oelrich,
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