Appeal No. 2002-2334
Application 09/097,235
electrically isolated since they share an electrically active
component which is used as both a capacitive sensor and a
resistive sensor at the same time.”
After careful review of the Koolen reference in light of the
arguments of record, however, we are in general agreement with
the Examiner’s position as stated in the Answer. Our inter-
pretation of the disclosure of Koolen coincides with that of the
Examiner, i.e., while the resistive and capacitive sensors share
component 110, the resistive sensor is electrically isolated from
the capacitive sensor since when the resistive sensor, i.e., DC
driver 114, is active, the capacitive sensor, i.e., AC driver
112, is disabled.
We recognize that the above interpreted electrical isolation
feature in Koolen is not the same as that disclosed by Appellants
in which a substrate material disposed between the resistive and
capacitive sensors provides the electrical isolation. It is the
claimed invention, however, that is before us on appeal. In our
view, Appellants’ arguments improperly attempt to narrow the
scope of the claim by implicitly adding disclosed limitations
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