Appeal No. 1996-3275
Application No. 08/038,469
the examiner wants to combine Tamoto with APA, concluding that
it would have been obvious to provide for a direct connection
of the battery to the PFC circuit in APA in view of Tamoto’s
battery connection since this “would allow for the correction
of the battery power and provide a more stable output, as both
the acknowledged prior art and Tamoto are from the same field
of endeavor, i.e. (UPS) systems with PFCs” [answer-page 4].
Thus, the examiner takes the position that Tamoto does,
indeed, disclose a UPS system with a PFC circuit. The
examiner appears to be factually in error on this point.
There is nothing in the disclosure of Tamoto regarding a PFC
circuit. Tamoto employs a chopper and booster circuit which
chops and boosts a rectified DC voltage across capacitors 19
and 20 to provide a greater DC voltage across capacitors 29
and 30. We agree with appellants that at “no point is there
is any power factor correction” [brief-page 5] in Tamoto.
The examiner is apparently equating the “power factor
correction circuit” of APA, including elements L1, L2, Q1 and
Q2, to elements 23-26 of Tamoto and assuming that since Tamoto
shows similar inductors and transistors, this must be a PFC
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