
{"publication_number": "US-7280944-B1", "abstract": "a signal processing method comprises : a ) detecting sample auxiliary signals from an auxiliary signal and sample reference signals from a reference signal at different times ; b ) applying an auxiliary weight from a set of auxiliary weights to a corresponding sample auxiliary signal to create weighted sample auxiliary signals ; c ) applying a reference weight from a set of reference weights to a corresponding sample reference signal to create weighted sample reference signals ; d ) creating a summation value that represents the sum of the weighted sample auxiliary signals and the weighted sample reference signals ; e ) creating an error signal that represents the difference between the desired signal and the summation value ; f ) scaling the error signal to generate an update function ; g ) detecting the error signal ; h ) applying the update function to each of the auxiliary weights and reference weights ; and i ) returning to step .", "application_number": "US-46520703-A", "description": "referring to fig2 , there is shown an embodiment of a multi - channel adaptive filter 10 , wherein a first set of p sample auxiliary signals { x 1 , x 2 , x 3 , . . . x p 