Echo detection and monitoring

Echo path change detection using dual sparse filtering

Echo suppression and echo cancellation

Echo-canceler for precoded fractionally spaced receiver...

Efficient echo cancellation techniques

Estimating bulk delay in a telephone system

Estimation method and apparatus

Fast converging affine projection based echo canceller for...

Frequency domain stereophonic acoustic echo canceller...

Full-duplex communication device and method of acoustic echo...

Heusristics for optimum beta factor and filter order...

Howling controller

Hybrid echo canceller

Hybrid echo canceller controllers

Impulse response setting method for the 2-channel echo...

Interference canceller tap sharing in a communications...

Low complexity frequency domain echo canceller for DMT...

Method and apparatus for active latency characterization

Method and apparatus for active reduction of speakerphone...

Method and apparatus for canceling acoustic echo in a mobile...