Appeal No. 1999-2618
Application 08/647,223
This is a decision on appeal under 35 U.S.C. § 134 from
the final rejection of claims 1, 3, 5-7, and 11. Claims 2,
4, 8-10, and 12-15 stand objected to as depending from a
rejected claim. Claims 16 and 17 stand allowed.
We reverse.
BACKGROUND
The invention relates to a power supply or personal
electronic device having a single inductor for powering an
electroluminescent (EL) lamp and a buzzer. The EL lamp and
buzzer are electrically coupled together to the output of
the inverter and are in parallel with each other (figure 4)
or are coupled in series between a source of direct current
and ground (figure 5).
Claims 1 and 7 are reproduced below.
1. A power supply for producing pulses from
direct current to operate an EL lamp and a buzzer, said
power supply comprising:
an inductor and a first transistor connected in
series between a source of said direct current and
ground and having a junction therebetween;
an output terminal;
a diode coupling said junction to said output
terminal;
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