Patent ID: 7826609

Claim:
An apparatus for removing interference in a communication system, the communication system including a receiver and a transmitter for simultaneous reception from and transmission to a communication medium, the apparatus comprising: an adaptive correlator in communication with the communication medium, the adaptive correlator configured to generate, for each period of time, a plurality of filter coefficients representing interference in a signal received by the receiver during the period of time, wherein the plurality of filter coefficients for a current time period comprise a weighted sum of corresponding coefficients from a previous time period weighted by one minus a first predetermined weighting factor, and a product of (i) a signal received by the receiver during the current period and (ii) a signal previously transmitted by the transmitter delayed by a predetermined time, the product being weighted by a second predetermined weighting factor comprising a quotient of the first predetermined weighting factor divided by a variance of the signal previously transmitted by the transmitter; and a combining device in communication with the receiver, the combining device configured to remove the interference from the signal received by the receiver during the current period in accordance with the plurality of filter coefficients generated by the adaptive correlator for the current period.