Easy detection of head position of information data via receptio

Echo and crosstalk cancellation

Echo canceler

Echo canceler

Echo canceler gain tracker for cellular modems

Echo canceler having adaptive digital filter unit associated wit

Echo canceler having simplified calculation circuits

Echo canceler with subband attenuation and noise injection contr

Echo canceling apparatus having a plurality of frame aligners as

Echo canceling method and apparatus for data over cellular

Echo canceling method and apparatus for digital data...

Echo canceling system

Echo canceling system and echo canceling method

Echo canceling system and echo canceling method

Echo cancellation apparatus in a digital mobile...

Echo cancellation device for full duplex communication systems

Echo cancellation device for full duplex communication systems

Echo cancellation device for full duplex communication systems

Echo cancellation device for full duplex communication systems

Echo cancellation for channels with unknown time-varying gain