Appeal No. 1996-1664
Application No. 08/272,647
This is an appeal from the final rejection of claims 32
through 34.
The disclosed invention relates to a circuit arrangement
that alters the output voltage of an inverter circuit.
Claims 32 and 33 are illustrative of the claimed
invention, and they read as follows:
32. An arrangement comprising:
a source operative to provide a substantially constant
magnitude DC voltage at a pair of DC terminals;
an inverter circuit assembly connected with the DC
terminals and operative to provide an AC output voltage at a
pair of inverter terminals; the AC output voltage being a
voltage that alternates in an periodic manner between a first
substantially fixed voltage level and a second substantially
fixed voltage level, spending a first time period at the first
voltage level and a second time period at the second voltage
level; the inverter output voltage consisting of repeated
cycles; each cycle having a total cycle period; the sum of the
first and second time periods equaling the total cycle period;
the inverter circuit assembly including control means
operative to control the RMS magnitude of the AC output
voltage;
gas discharge lamp having a pair of lamp terminals; and
coupling circuit assembly connected between the inverter
terminals and the lamp terminals.
33. An arrangement comprising:
a source operative to provide a DC voltage at a pair of
DC terminals;
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