Acoustic echo cancellation

Anti-howling circuit detecting howling from effect of...

DAC architecture for analog echo cancellation

Desired voice detection in echo suppression

Device and method for echo compensation in a two-wire full...

Device and method for suppressing echo in telephones

Device and method for suppressing echo in telephones

Differential line bridge for scaleable near-end speech...

Echo canceler coefficient update apparatus and method

Echo canceling apparatus, telephone set using the same, and...

Echo cancellation device for cancelling echos in a...

Echo cancellation in digital data transmission system

Echo canceller

Echo canceller

Echo canceller and method of echo cancellation using an NLMS...

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

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

Echo canceller ensuring further reduction in residual echo

Echo canceller having improved noise immunity

Echo canceller having improved non-linear processor