Patent ID: 9124454
Filing Date: 2015-09-01
Classification: H04L

Abstract:
1. An apparatus, comprising: a coefficient adapter configured to remove a signal component from a signal received from a transmitter to produce a residual signal, wherein the signal component is added to the signal by a transmit equalizer of the transmitter that functions according to tap coefficients, and wherein the coefficient adapter is configured to generate settings for modifying the tap coefficients at the transmitter as a function of the residual signal; and an adjuster configured to adaptively adjust the tap coefficients of the transmit equalizer by providing the settings to the transmitter, wherein the transmitter provides the signal across a channel to the apparatus, wherein the adjuster is configured to accumulate a gradient of revised tap coefficients, wherein the adjuster periodically transmits the settings that are based, at least in part, on the gradient of revised tap coefficients to the transmitter, and wherein the transmitter is on a separate side of the channel from the apparatus.