Patent ID: 6166600
Filing Date: 2000-12-26
Classification: H03F

Abstract:
A method of reducing distortion in an amplified signal, said method comprising the steps of:splitting a signal onto a main signal path and a feed forward path;amplifying said signal from said main signal path via an amplifier to output an amplified signal with distortion on said main signal path;obtaining a portion of said amplified signal with said distortion output from said amplifier;adjusting the relative phase and amplitude between said portion of said amplified signal with said distortion and said signal on said feed forward path using inputs of said portion of said amplified signal with distortion and said signal on said feed forward path;combining at a distortion isolation point said portion of said amplified signal with said distortion with said signal from said feed forward path to provide said distortion on said feed forward path; andusing said distortion on said feed forward path to reduce distortion on said main signal path,wherein neither of said portion of said amplified signal with said distortion and said signal on said feed forward path includes a pilot signal.