Patent ID: 6546099
Filing Date: 2003-04-08
Classification: H04M

Abstract:
An arrangement for suppressing an interfering component in an input signal, said arrangement comprising a selection from singular and plural means for deriving an estimate of the interfering component, subtraction means for determining a difference signal from the input signal and an interfering estimate selected from the 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 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, 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 interfering component and the estimate of the frequency spectrum of the summed interfering components to define the at least one frequency range.