Patent ID: 9294079
Filing Date: 2016-03-22
CPC Classification: H03F,H03K,H04L

Claim Text:
1. A method for generating a multi-band signal, comprising: transforming multiple base-band envelope signals into a sequence of symbols representing a signal including a plurality of disjoint frequency bands, wherein each frequency band corresponds to a single base-band envelope signal, and wherein each symbol corresponds to an amplitude of the signal and is a number selected from a finite set of numbers; encoding the sequence of symbols as a plurality of pulse width modulation (PWM) signals, wherein each PWM signal includes a plurality of codes for encoding each symbol, wherein a sum of values of the codes of the set of PWM signals encoding a symbol is proportional to a value of the symbol; amplifying the PWM signals to produce a plurality of amplified signals; and combining the plurality of amplified signals to produce the multi-band signal.