Appeal No. 1997-1232
Application No. 08/182,035
While I agree that Appellant's disclosure provides a
preferred embodiment in which the maximum or minimum value is
detected by determining the actual value of the maximum or
minimum, the prior art teaches other possible ways in which
the maximum and minimum signal is detected without actually
determining the actual value of the maximum or minimum.
Carmon teaches in column 8, lines 28 through 64, a method in
which the maximum or minimum signal value is detected by
determining the sign of the second order derivative of these
signals evaluated at the input sample points. A positive sign
corresponds to a place near a local minimum, a negative sign
corresponds to a place near a local maximum. Carmon teaches
that by careful consideration of these signs of the input
sample point, it is possible to detect the actual maximum or
minimum signal value. Carmon further teaches in detail in
column 8, line 64 through column 12, line 8, the mathematics
of this method of using a sign of the second order derivatives
to detect the maximum and minimum signal values.
Because Appellant's claim 1 does not preclude methods in
which the maximum and minimum signal value can be detected
without actually determining the value itself, I would affirm
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