Patent ID: 9473082
Filing Date: 2016-10-18
CPC Classification: H03F,H03G,H03H,H04B

Claim Text:
1. A communication system, comprising: a digital tuner having an input and an output, the digital tuner configured to output a modulated data signal, the modulated data signal comprising baseband data modulated onto a carrier; a digital signal processor having an input and an output, and configured to provide a bias signal at its output, the bias signal being provided according to an envelope of a signal at the input to the digital signal processor; a combiner having a first input coupled to the output of the digital tuner and a second input coupled to the output of the digital signal processor, and an output, the combiner configured to generate a combined signal by combining the modulated data signal with the bias signal; a digital-to-analog converter (DAC) having an input coupled to the output of the combiner and an output; a power amplifier having a signal input, a control input and an output; a high pass filter having an input coupled to the output of the DAC and an output coupled to the signal input of the power amplifier; and a low pass filter having an input coupled to the output of the DAC and an output coupled to the control input of the power amplifier.