Patent ID: 8331490
Filing Date: 2012-12-11
Classification: H04L

Abstract:
1. A method of processing a communications signal, comprising: setting a high-frequency threshold with a frequency detecting unit; converting in-phase and quadrature components of a baseband signal to magnitude and phase-difference components with a converter unit; detecting high-frequency events in said phase-difference component during which a rate of change of phase exceeds said high-frequency threshold with the frequency detecting unit; altering a signal trajectory of said baseband signal, in response to detected high-frequency events; upconverting said baseband signal after the signal trajectory of said baseband signal has been altered; coupling an upconverted phase-difference component to a first input of a modulator; and coupling said magnitude component to a second input of said modulator, wherein altering the signal trajectory of said baseband signal comprises nonlinear filtering of said magnitude component and nonlinear filtering of said phase-difference component.