Amplifiers – Modulator-demodulator-type amplifier
Reexamination Certificate
2006-04-04
2006-04-04
JeanPierre, Peguy (Department: 2819)
Amplifiers
Modulator-demodulator-type amplifier
C330S101000, C330S251000, C330S260000, C455S091000
Reexamination Certificate
active
07023267
ABSTRACT:
A radio frequency (RF) switching power amplifier comprises: a switching amplifier203to provide an amplified signal within an RF band; and a delta signal modulator (DSM)207that is operable; to control the switching amplifier in a feedback configuration, to process an input signal within an intermediate frequency (IF) band where the input signal corresponds to a base band signal and the amplified signal, and to provide an output signal within the RF band to drive the switching amplifier. Certain embodiments allow for or compensate for a floating or variable IF band and multiple RF bands.
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Lee Wai
Mekechuk Kelly
Stapleton Shawn
Bethards Charles W.
Jean-Pierre Peguy
Nguyen Khai M.
Prophesi Technologies, Inc.
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