Adaptive analog echo/NEXT cancellation

Abstract

A physical layer (PHY) device including i) an input configured to receive a first transmit signal transmitted from a remote device, and ii) an output configured to transmit a second transmit signal from the PHY device to the remote device. The second transmit signal causes interference in a receive signal at the input of the PHY device. The PHY device further including a selection module configured to select a first control signal to cancel the interference in the receive signal when the receive signal does not include the first transmit signal and a second control signal to cancel the interference in the receive signal when the receive signal includes the first transmit signal. The interference includes (i) an echo due to the second transmit signal or (ii) crosstalk due to a third transmit signal output by a local PHY device proximate to the PHY device.

Dependencies are inferred from the claim text.