Appeal No. 1998-0992
Application 08/706,978
bandgap generator circuit. Because V of Q3 or Q4 is not
be
temperature independent and V is, the appellants’ claimed
REF
feature is not met by the examiner’s reliance on Kimura’s VREF
and V of Q3 or Q4. The appellants correctly note that if Vbe be
itself can be assumed as a constant, then V alone already
be
provides a temperature stable reference voltage. That is not
consistent with the appellants’ specification.
The examiner also has not expressed any fraction in terms
of the general resistor variables R1 and R3, which define a
relationship between V and V of Q3 or Q4. In any event, noREF be
matter what operative values R1 and R3 take on, it does not
change the fact that V is temperature stable and V of Q3 orREF be
Q4 is not. An ability to set values for resistors R1 and R3
does not salvage or otherwise restore merit to the stated
rejection.
As for the reference Yu, it does not, as applied by the
examiner, make up for the deficiencies of Kimura as discussed
above. The examiner acknowledges in the answer on page 4,
lines 8-10, that Yu does not disclose “any specific details
for the bandgap voltage generator.”
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