Patent ID: RE41445

Claim:
An arrangement for suppressing an interfering component in an input signal, said arrangement comprising : a selection from singular and plural means for deriving an a summed estimate of the interfering component , ; subtraction means for determining a difference signal from the input signal and an interfering estimate selected from the summed estimate of the interfering component and a sum estimate of at least two interfering components, ; means for determining an estimate of the frequency spectrum of the summed estimate of the interfering component and an estimate of the frequency spectrum of the sununed interfering components, ; a filter having an input for receiving said difference signal and an output for an output signal being an estimate of said input signal substantially free of said interfering component , and having a selectable transfer function relating said output to said input of the filter, which transfer function is reduced in value for at least one frequency range for suppressing spectral components of the output signal having a strong contribution from the interfering component , ; and means for setting the transfer function of the filter in dependence on the estimate of the frequency spectrum of the summed estimate of the interfering component and the estimate of the frequency spectrum of the summed interfering components to thereby define the at least one frequency range.