Appeal No. 97-3672
Application 08/515,312
2. Admitted Prior Art as represented by (see Answer at page
5):
Fahnrich et al. Patent 4,782,268 Nov. 1,
1988
(Fahnrich)
For convenience purposes, in this opinion our discussions
will regard Fahnrich as the admitted prior art, as has the
examiner (Answer at 3-4).
The Rejections on Appeal
Claims 1-14 stand finally rejected under 35 U.S.C. § 103
as being unpatentable over the appellant’s admitted prior art
and Shackle.
The Invention
The invention is directed to a circuit arrangement for
operating a discharge lamp. The independent claims 1 and 11
are reproduced below:
1. A circuit arrangement for operating a lamp,
comprising:
terminals for connection to an AC supply voltage
source,
rectifying means provided with a first output and
a second output and coupled to the terminals for
rectifying the AC voltage,
a DC-AC converter provided with a first input and a
second input coupled to the first output and the second
output, respectively,
2
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