Appeal No. 2005-0364
Application No. 10/072,676
such that a person of ordinary skill in the art could practice
the invention without undue experimentation. In re Paulsen, 30
F.3d 1475, 1478-79, 31 USPQ2d 1671, 1673 (Fed. Cir. 1994).
The examiner points to Figure 2 of Estes and contends that
there is an isolation transformer (35, [sic, 34]) having a
primary winding (on left) and a first secondary winding (on
right), with the primary winding receiving power from a source of
alternating current (12, 30, 32, 165, and 166). The examiner
contends that the remainder of the circuit constitutes a feedback
control loop comprised of a voltage reference (ground), an output
sampler (136, 138, 140a, 140b, and 168), and an AM amplifier
(175), with the output sampler functioning to provide a scaled
sampling (138, 140a, 140b sample the output and provide a scaled
version thereof) of the output voltage (VOUT) of the power line
conditioner to a first input (inverting input, via 168) of the
amplifier (175), and the voltage reference (ground) connected to
provide a desired voltage (zero volts) to a second input (non-
inverting input) of the amplifier (175). The examiner further
indicates an output of the amplifier connected (via 167, 138, and
136) to a first terminal (top terminal) of the isolation
transformer (34), and a second terminal (bottom terminal) of the
first secondary winding of the isolation transformer (34)
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