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 communication system using time division...

Efficient echo cancellation for DMT MDSL

Efficient frequency division duplex communication system with in

Efficient full duplex simultaneous message transfer

Efficient support for TDD beamforming via constrained...

Efficient time division duplex communication system with interle

Efficient transmission of signaling using channel constraints

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

Enhanced radio telephone for use in internet telephony