Appeal No. 1997-1231
Application No. 08/308,985
the dc/dc converter means comprising
a switched dc/dc converter of the "fly-back" type
and a second switched dc/dc converter of the
"feed-forward" type,
the control circuitry being arranged to drive the
dc/dc converters in a manner such that, each time
the lamp is switched on, first the "fly-back"
converter is activated in order to generate the very
high
voltage and, subsequently, the "feed-forward"
converter is activated in order to generate the low
voltage with high electrical power.
The references relied on by the Examiner are:
Ruff et al. (Ruff) 4,469,981 Sep. 4, 1984
Roberts 4,709,188 Nov. 24, 1987
Oda et al. (Oda) 5,151,631 Sep. 29, 1992
Claims 1, 4 to 6, 7, 8 and 9 stand rejected under 35
U.S.C. § 103 over Roberts and Oda, while 2, 3, 10 and 11 stand
rejected over Roberts, Oda and Ruff.
Reference is made to Appellants’ brief and the
Examiner's answer for their respective positions.
OPINION
We have considered the record before us, and we will
reverse the rejection of claims 1 to 11.
With respect to claims 1 to 11, the Examiner has failed
to set forth a prima facie case of obviousness. It is the
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