Patent ID: 7469025

Claim:
A system for processing two or more signals associated with a multi-channel communication path, wherein a signal is associated with each channel of the multi-channel communication path, to cancel coupling onto the two or more signals from other of the signals associated with a multi-channel communication system or signals associated with other communication systems, the system comprising: a first filter system and a second filter system, the first filter system comprising: two or more inputs configured to receive the two or more signals; at least one multiplier associated with each channel of the multi-channel communication path, the at least one multiplier configured to perform at least one multiplication between the signal associated with the channel and at least one filter value multiplier to create a first filter system output associated with each channel; two or more outputs configured to provide the first filter system output to the second filter system; and the second filter system comprising: a decision device associated with each channel, the decision device configured to generate a decision signal; a first junction associated with each channel, the first junction configured to combine the decision signal with the first filter system output or a signal based on the first filter system output, the combination thereby generating a noise signal; at least one filter configured to process the noise signal to generate a cancellation signal; at least one second junction configured to combine the cancellation signal with a first filter system output to thereby cancel noise from at least one first filter system output.