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Portable communication device having adjustable amplification and method therefor

  • US 7,149,484 B2
  • Filed: 10/03/2002
  • Issued: 12/12/2006
  • Est. Priority Date: 10/03/2002
  • Status: Expired due to Fees
First Claim
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1. A method of adjusting transmission power level of a portable communication device comprising:

  • performing a scalar analog comparison of a modulated input signal to an amplifier with an output signal of the amplifier;

    generating an analog output signal without any digitized processing, the analog output signal based on the comparison; and

    adjusting only a magnitude but not phase of an input signal to the amplifier by predistorting then modulating the input signal, wherein adjusting is based on the analog output signal.

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