Patent ID: 8472533

Claim:
A noise cancellation system, comprising: a first transformer having an input side and an output side, the input side having first and second taps coupled to a communication service provider and further having a center tap; a first digital subscriber line (xDSL) modem having an input coupled to the output side of the first transformer and an output coupled to customer premises equipment (CPE) for providing an xDSL signal to the CPE; a second transformer having an input side and an output side, the input side having first and second taps coupled to the communication service provider and further having a center tap; a second xDSL modem coupled to the output side of the second transformer; and a third transformer having an input side and an output side, the input side of the third transformer having one tap coupled to the center tap of the first transformer, and a second tap coupled to the center tap of the second transformer, the output side of the third transformer being coupled to the first and second xDSL modems to reduce noise in the xDSL signal provided to the CPE.