Appeal No. 1999-1941
Application No. 08/629,700
figure 5) and controls the communtation switching based on the
detection."
However, we disagree with the Examiner's position. Like
Appellant, we note in MacMinn, item 38 as the resolver or the
rotation position sensor which is necessary for the control of
the SRM 10. Thus, the estimate or the sensing of the rotational
position of the rotor is necessary for the control operation of
the srm in MacMinn. Lyons, on the other hand, deals with a lock
detector for a switched reluctance motor position estimator. It
monitors the rotor angle estimates from an srm estimator to make
sure that the estimator is accurately tracking rotor position,
see abstract. Lyons shows the state of the prior art in figure
1B where the machine control means is shown at 50. It is the
rotor angle 2 going to the control means 50 which Lyons is
directed to improve. Lyons does not show that its control means
operates without an angle sensor. Figure 4 shows the manner in
which Lyons improves on the machine control signal going to
control means 50. Note that to obtain the output from item 100
in figure 4 of Lyons, a rotational position sensor signal is
necessary at control logic 90. Therefore, it is clear that
Lyons also utilizes a rotational position sensor output for
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