Patent ID: 8045946
Filing Date: 2011-10-25
Classification: H04B,H04L

Abstract:
1. A system comprising: a transceiver configured to receive a composite signal and an encoded transmit signal, the composite signal being a composite of a transmit signal and a receive signal, wherein the transceiver includes a first current source and a first resistor, the first current source configured to generate the transmit signal across the first resistor based on the encoded transmit signal; a replica transmitter configured to i) receive the encoded transmit signal and ii) generate a replica transmit signal based on the encoded transmit signal, wherein the replica transmitter includes a second current source and at least one second resistor, the second current source configured to generate the replica transmit signal across the at least one second resistor based on the encoded transmit signal; and a transmit canceller configured to recover the receive signal at least in part by resistively summing the composite signal and the replica transmit signal.