Patent ID: 8737188

Claim:
A method for crosstalk cancellation, the method comprising: receiving a near-end acoustic signal via a microphone and a far-end acoustic signal via a receiver; generating a cross-talk estimate signal, the generating comprising: delaying the far-end acoustic signal; filtering the delayed far-end acoustic signal to produce a filter output, the filtering based at least in part on fixed predetermined filter coefficients, the delayed far-end acoustic signal being in the time domain; adapting a gain variable for estimating cross-talk, the adapting the gain variable comprising dividing a cross-correlation by a magnitude of filter outputs, the cross-correlation being based at least in part on the near-end acoustic signal and the filter output; applying a gain to the filter output to produce the cross-talk estimate signal, the gain based at least in part on the adapted gain variable; and subtracting the cross-talk estimate signal from the near-end acoustic signal to generate a cleaned acoustic signal.