AC-center clipper for noise and echo suppression in a...

Acoustic echo canceler

Acoustic echo canceler with a peak impulse response detector

Acoustic echo processing system

Adaptive analog echo/NEXT cancellation

Adaptive echo canceler undoing adaptations made during...

Adaptive filter and echo canceller using the same

ADAPTIVE FILTER FOR ECHO CANCELLATION, METHOD FOR OPERATING...

Adaptive filter for network echo cancellation

Adaptive filter utilizing proportional affine projection...

Adaptive scaling and echo reduction

Apparatus and method for controlling acoustic echo...

Apparatus and method for echo cancellation

Apparatus and method for echo cancellation

Apparatus and method for echo control

Apparatus and method for echo-cancellation

Apparatus and method for time-alignment of two signals

Apparatus and method of time delay estimation

Apparatus for removing echo from speech signals with...

Apparatus for sidetone damping