Patent ID: 8200484

Claim:
An apparatus for eliminating cross-channel interference, comprising: a source absence probability estimating unit to estimate a source absence probability for a current frame of a first channel output; an elimination coefficient determining unit to determine an interference elimination coefficient for matching a secondary signal of the first channel output with a primary signal of a second channel output by using the source absence probability; an interference signal generating unit to generate an interference signal by multiplying the second channel output by an over-subtraction factor and the interference elimination coefficient; and an interference eliminating unit to eliminate the cross-channel interference from the first channel output by using the interference signal, wherein the elimination coefficient determining unit performs a partial differentiation for a v-norm value of a spectral amplitude difference between the first channel output and the second channel output multiplied by the interference elimination coefficient and a result of the multiplication of the source absence probability by using the interference elimination coefficient to determine an update amount of the interference elimination coefficient for a next frame.