Device and method for echo cancellation in equilibrium transmission methods in duplex operation over a two-wire line

摘要

Device and method for echo compensation in equilibrium transmission methods in duplex operation over a two-wire line, an echo compensation filter with adjustable coefficients, which is designed as an FIR filter, being arranged between the transmitter output and receiver input, and an IIR filter with adjustable coefficients is additionally provided, whose coefficients can be determined depending on the coefficients of the FIR filter.