Echo canceller disabler for modulated data signals

Echo canceller employing H-register and storage register

Echo canceller for a packet signal

Echo canceller system

Echo canceller system in an ATM network

Echo canceller system with shared coefficient memory

Echo canceller touch-up period in an echo-cancelling modem

Echo controller with compensation for variable delay networks

Echo path delay estimation

Echo reduction

Echo reduction

Echo suppressor for facsimile calls in a satellite network

Efficient echo cancellation for DMT MDSL

Elimination of clipping associated with VAD-directed silence...

Error correction method and apparatus for TTY on VoIP...

Error handling in a wireless communications system

Failsafe management of periodic communications during system...

Far echo canceller for PCM modems

Filter and process for reducing noise in audio signals

Filter cell, method of deriving an echo component and an...