Appeal No. 1998-0992
Application 08/706,978
According to the examiner, with respect to Kimura, V is
REF
fixed at 1.2 volts, and V of transistors Q3 or Q4 is 1.3
be
volts (if power supply V is given as 2.5 volts). Thus, the
cc
examiner states (answer at 7, lines 2-3): “Clearly, since all
these values are fixed, 1.2 is a fraction of 1.3.” But,
again, the examiner is improperly treating the base-emitter
voltage V of Q3 and Q4 in Kimura as though it were an
be
unvarying constant.
We have already explained above that such an assumption
in the context of producing a temperature stable reference
voltage as is claimed by the appellants is improper. We have
noted also that according to the specification it is because
the first component term in the summation is not temperature
compensated that the second component is needed as an offset
to produce a sum that is temperature stable. It is without
sufficient basis for the examiner to treat the base-emitter
voltage of Kimura’s Q3 or Q4 bipolar transistor as a constant.
V , on the other hand, is described in column 4, lines 58-61,
REF
of Kimura as “substantially constant in the wide temperature
range so that [it] scarcely has a temperature characteristic.”
Indeed, V is the temperature stable output of Kimura’s
REF
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