Patent ID: 8437442
Filing Date: 2013-05-07
Classification: H04L

Abstract:
1. A method for generating a carrier frequency signal in a two-point modulation architecture, comprising: generating, by a tuning oscillator (TO), a first frequency signal; injecting, by a modulation oscillator (MO), a modulation signal at a first point of the two-point modulation architecture; generating, by the MO, a second frequency signal from the modulation signal; mixing, by an output module, the first frequency signal and the second frequency signal to generate a mixed frequency signal; outputting, by the output module, the carrier frequency signal selected from the mixed frequency signal; and feeding back, by the output module, the carrier frequency signal to a feedback path; wherein outputting, by the output module, the carrier frequency signal selected from the mixed frequency signal comprises: selecting, by an output filter, the carrier frequency signal from the mixed frequency signal, wherein the carrier frequency is one of a difference and a sum of the first frequency and the second frequency, and output the carrier frequency signal.