Patent ID: 8055235
Filing Date: 2011-11-08
Classification: H04B

Abstract:
1. A receiver having at least one non-linear component, comprising: an input configured to receive a radio frequency input signal having at least one signal of interest and at least one radio frequency signal component which is at least one of: a digital signal generator, configured to produce an oversampled digital representation of the at least one radio frequency signal component; a digital to analog converter, configured to produce a radio frequency analog signal corresponding to the oversampled digital representation of the at least one radio frequency signal component, and being controlled with respect to at least a relative time delay with respect to the at least one radio frequency signal component; and a component configured to receive the radio frequency input signal substantially without non-linear distortion and the radio frequency analog signal, and to cancel the at least one radio frequency signal component from the radio frequency input signal, to produce a modified radio frequency signal in which a residual portion of the radio frequency signal component does not saturate the saturable element or is associated with a distortion amplitude of the at least one distortion component reduced by at least 3 dB, and the signal of interest is substantially unmodified with respect to a modified radio frequency signal produced if the radio frequency analog signal has zero amplitude.