Patent ID: 7672461
Filing Date: 2010-03-02
Classification: H04R,H04S

Abstract:
1. A method for creating a third channel from an input signal received in each of a first and second channel, comprising the steps of: receiving an input signal in each of a first and second channel; passing high frequency signals in each of the first and second channels; summing the input signal in the first channel with the input signal in the second channel to produce a summed signal; amplifying the summed signal in accordance with a predetermined gain to produce an amplified summed signal; passing low frequency signals in the amplified summed signal; combining the passed high frequency signals in the first channel with the amplified summed signal to produce a first combined signal; inverting the amplified summed signal to produce an inverted summed signal, wherein the low frequency signals of the inverted summed signal are out of phase with the low frequency signals in the first combined signal; and combining the passed high frequency signals in the second channel with the inverted summed signal to produce a second combined signal.