The present invention provides a technique for cancellation of jammer signals in a radio frequency receiver. A radio frequency signal contains both a desirable signal and an undesirable jammer signal. The combined signal is processed with a filter (104) to extract only the undesirable jammer signal....http://www.google.de/patents/US7139543?utm_source=gb-gplus-sharePatent US7139543 - Distortion reduction in a wireless communication device
