Amplifiers – With amplifier bypass means
Reexamination Certificate
2006-10-03
2006-10-03
Bayard, Emmanuel (Department: 2611)
Amplifiers
With amplifier bypass means
C330S149000, C330S052000, C330S002000, C330S12400D, C375S297000, C375S296000, C341S118000, C455S063100
Reexamination Certificate
active
07116167
ABSTRACT:
A predistortion linearizer may include a digital signal processor (DSP) for modeling a nonlinear characteristic of a high power amplifier (HPA) on a real time basis; a distortion signal generator for generating a distortion signal by using the signal modeled by the DSP; and a main path unit for combining the output signal of the HPA and the distortion signal of the distortion signal generator and transmitting an input signal without a distortion component. Since the nonlinear characteristic of the power amplifier is modeled on a real time basis to remove the distortion component contained in the output signal of the power amplifier, the nonlinear characteristic of the power amplifier is improved, and thus, an efficiency of the power amplifier can be maximized.
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Bayard Emmanuel
Fleshner & Kim LLP
LG Electronics Inc.
Pathak Sudhanshu C.
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