Appeal No. 1998-0711
Application 07/989,027
and 15 effectively recites a serial data transfer loop between
the output of the control processor, a series connected chain
of power drivers, and the input of the control processor.
Appellants argue that neither Hartford nor Majeed discloses a
closed loop serial link for transferring control signal
information from the control unit to the amplifier stages and
for transferring amplifier status signal data back to the
control unit [brief, pages 5-8]. Appellants also argue that
the dual processsor arrangement of claim 15 is not suggested
by the teachings of the applied references. Finally,
appellants argue that the teachings of Paredes do not overcome
the basic deficiencies in the combination of Hartford and
Majeed as argued in the brief [reply brief].
We agree with appellants’ position for the reasons set
forth in the briefs. The examiner has only cited prior art
which has the conventional closed loop connections of a
feedback control system. The fundamental difference between
the closed loop control of Hartford and Majeed and the closed
loop data flow of the claimed invention occurs at the power
drivers of the amplifier stages. In the conventional closed
loop control of the applied prior art, the drivers themselves
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