Appeal No. 2000-0142 Page 10
Application No. 08/705,569
switching devices, there are no switching periods in the
claimed apparatus, whereby the resistance value of the
reference resistor must necessarily be independent of any
switching periods (which do not exist).” (Reply Br. at 2.)
The examiner answers, “the recitation ‘reference resistor is
independent of any switching device present in the voltage
current converter’ . . . is inconsistent with what is
described in the specification and shown in the drawings. For
example, the transistor T1 in Figure 2 of the present
invention is a switching device and the reference resistor Ref
depends on the switching states of the transistor T1.”
(Examiner’s Answer at 5.)
Claim 15 specifies in pertinent part the following
limitations: "the reference resistor is independent of any
switching devices present in the voltage-current converter."
Similarly, claim 20 specifies in pertinent part the following
limitations: “[t]he voltage-to-current converter . . . is
devoid of any switching devices whereby the resistance value
of the reference resistor is independent of any switching
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