Patent ID: 7415086
Filing Date: 2008-08-19
Classification: H04B,H04L

Abstract:
1. A method for filtering encoded signals received over a first channel through an Mth channel carrying a first encoded signal through an Mth encoded signals that are received over two or more primary channels in a multichannel communication system comprising: receiving the first through Mth encoded signals over two or more primary channels, the two or more primary channels adjacent at least one alien channel; providing the first through Mth encoded signals to a matrix filter, the matrix filter configured with a transfer function that is the inverse of the two or more channels to thereby cancel at least a portion of unwanted coupling onto the two or more primary channels from the primary channels and to reverse the effects of the channel on the first through Mth encoded signals; processing the first through Mth encoded signals within the matrix filter to generate a first through an Mth encoded matrix filtered signals; storing at least one of the first through Mth encoded matrix filtered signals in a memory; decoding the Mth encoded matrix filtered signal to generate Mth channel data; processing the Mth channel data to isolate an error term associated with the Mth channel data; filtering the error term to generate at least one noise cancellation signal; retrieving from memory an encoded matrix filtered signal received over channel M−1; combining the at least one noise cancellation signal with the encoded matrix filtered signal received over channel M−1, wherein combining the noise cancellation signal cancels unwanted noise on the encoded matrix filtered signal received over channel M−1; and decoding the encoded matrix filtered signal received over channel M−1 after combining to generate M−1 channel data.