Echo canceller employing dual-H architecture having improved...

Echo canceller employing dual-H architecture having improved...

Echo canceller employing dual-H architecture having split...

Echo canceller employing dual-H architecture having split...

Echo canceller employing dual-H architecture having variable...

Echo canceller employing dual-H architecture having variable...

Echo canceller ensuring further reduction in residual echo

Echo canceller for a full-duplex communication system and...

Echo canceller for non-linear circuits

Echo canceller having improved noise immunity

Echo canceller having improved non-linear processor

Echo canceller having improved non-linear processor

Echo canceller having improved non-linear processor

Echo canceller in a communication system at a terminal

Echo canceller with interference-level controlled step size

Echo canceller with reduced requirement for processing power

Echo cancellers for sparse channels

Echo cancelling/suppression for handsets

Echo cancellor

Echo detection and monitoring