Patent ID: 7567638

Claim:
A method for canceling narrow band interference by a wireless device comprising: sampling a wireless communication channel to produce a sampled signal, at least some of the narrow band interference not present in the sampled signal of the wireless communication channel; spectrally characterizing the sampled signal across a frequency band of interest to produce a spectral characterization of the sampled signal, wherein the spectral characterization does not include a signal of interest; modifying the spectral characterization of the sampled signal to produce a modified spectral characterization by altering frequency components of the spectral characterization of the sampled signal in anticipation of presence of at least a portion of the narrow band interference; generating filter settings based upon the modified spectral characterization; filtering the wireless communication channel using the filter settings when the signal of interest is present on the communication channel; and receiving wireless communications via the wireless communication channel while filtering the wireless communication channel using the filter settings.