Echo cancelling device for data transmission over two-wire lines

Echo cancelling device providing adjustment of the echo cancelle

Echo cancelling device with frequency sub-band filtering

Echo cancelling device with phase-roll correction

Echo cancelling method and apparatus using fast projection schem

Echo controller with compensation for variable delay networks

Echo path delay estimation

Echo path transition detection

Echo profile probe

Echo profile probe

Echo reduction

Echo reduction

Echo reduction circuit

Echo reduction to achieve a requested service

Echo suppression arrangement for an adaptive speakerphone

Echo suppressor for facsimile calls in a satellite network

Echo suppressor with adaptive digital filter for transmission sy

ECN-based approach for congestion management in hybrid IP-ATM ne

Economical payload stream routing in a multiple-ring network

Economical synchronization system for asynchronous transfer...