Telecommunications – Transmitter
Reexamination Certificate
2006-02-23
2010-02-16
Nguyen, Simon D (Department: 2618)
Telecommunications
Transmitter
C455S067130, C455S114200, C455S115100, C455S127100, C375S296000
Reexamination Certificate
active
07664472
ABSTRACT:
Reducing the peak-to-average power ratio of a signal comprises receiving the input signal, where the input signal is associated with at least one unacceptable frequency range. The input signal is clipped about an amplitude range to yield a clipped signal and clipped information, where the clipped information represents intermodulation products. The clipped information is filtered to yield an error signal. The error signal represents a subset of the intermodulation products, where an intermodulation product of the subset corresponds to the unacceptable frequency range. The error signal is subtracted from the input signal to yield an output signal.
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Coleman, Jr. William E.
Gloudemans Mark A.
Mosley, Jr. William H.
Patel Jayanti
Peterson Bror W.
Baker & Botts L.L.P.
Nguyen Simon D
Raytheon Company
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