Patent ID: 7570685

Claim:
A method for crosstalk cancellation in a system comprising a transceiver 2 having a transmitter T 2 and a receiver R 2 , a transceiver 3 having a transmitter T 3 and a receiver R 3 , a transceiver 4 having a transmitter T 4 and a receiver R 4 , and at least one communication path P 1 , wherein said transceiver 2 and said transceiver 4 communicate through said communication path P 1 , said method comprising, in no particular order, placing an insertion block between said transmitter T 2 and said receiver R 2 for inserting an error signal at said receiver R 2 into said communication path P 1 ; placing a far-end crosstalk (FEXT) canceller FC 32 at said transmitter T 4 , said FEXT canceller FC 32 comprising a finite impulse response (FIR) filter; connecting said FIR filter to said receiver R 4 for obtaining said error signal; connecting said FIR filter to said transmitter T 3 for obtaining transmit data thereof; correlating said error signal and said transmit data; and adapting said FEXT canceller FC 32 based on said correlating step to compensate far-end crosstalk at said receiver R 2 .