Patent ID: 8848836

Claim:
A system comprising: a detector configured to detect interference in an input signal received via a power line, wherein the interference is due to transmission of electricity and the input signal over the power line in a power line communication system; an interference remover configured to remove the interference from the input signal using adaptive filtering and to generate an output signal; wherein the interference remover comprises a band-pass filter configured to filter the input signal and to generate a filtered signal, and wherein the adaptive filtering is based on a difference between the input signal and the filtered signal; and wherein the detector comprises an energy detector configured to detect energy in the filtered signal and a comparator configured to compare the energy to a predetermined threshold to detect when the interference is present in the input signal; and a selector configured to (i) provide the output signal to a demodulator if the detector detects the interference and (ii) bypass the interference remover and connect the input signal directly to the demodulator if the detector does not detect the interference.