Method and apparatus for reduction of distortion i

专利名称：Method and apparatus for reduction of

distortion in a transmitter

发明人：Edward Vincent Louis,Michael David Leffel申请号：US098380申请日：20010419公开号：US06819173B2公开日：20041116

专利附图：

摘要：A transmitter that includes a feed forward amplifier amplifies an input signal toproduce an amplified signal that includes a distortion component. The transmitterdetermines an error signal based on the input signal and the amplified signal and

amplifies the error signal to produce an amplified error signal that includes an errorsignal distortion component. The transmitter combines the amplified error signal withthe amplified signal to produce an output signal that includes the error signal distortioncomponent and a portion of the amplified signal distortion component. The transmitterdetermines a distortion component of an attenuated version of the output signal and anenergy of the determined distortion component. Based on the determined energy, thetransmitter produces a control signal designed to minimize the energy of the distortioncomponent of the attenuated output signal and thereby minimize distortion in theoutput signal.

申请人：MOTOROLA, INC.

代理人：Steven A. May

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