Amplifiers – With amplifier condition indicating or testing means
Reexamination Certificate
2005-04-19
2005-04-19
Choe, Henry (Department: 2817)
Amplifiers
With amplifier condition indicating or testing means
C330S149000
Reexamination Certificate
active
06882217
ABSTRACT:
The present invention includes methods and devices to apply predistortion to correct nonlinearities of a power amplifier in an OFDM symbol transmission system. More particularly, predistortion is patterned to take into account clipping of symbols and to match an effective input range of the predistorter with an average power output of the power amplifier. This invention may be applied to a variety of standards utilizing OFDM technology, including IEEE 802.11a, Hiperlan/2 and MMAC.
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3com Corporation
Beffel Ernest J.
Choe Henry
Haynes Beffel & Wolfeld LLP
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