Method and apparatus for detecting speech at a near-end of a com

Method and apparatus for echo canceler disablement

Method and apparatus for echo canceling in a communication syste

Method and apparatus for echo compensator connection for telepho

Method and apparatus for echo removal in a communication system

Method and apparatus for feeding power to a telephone line such

Method and apparatus for improved control and time sharing of an

Method and apparatus for maintaining audio sample correlation

Method and apparatus for providing a ground reference for teleph

Method and apparatus for providing service to VODSL derived...

Method and apparatus for removing FSK in-band signaling

Method and apparatus for transmitting white noise for echo cance

Method and arrangement for supplying direct current to a telepho

Method and circuit arrangement for compensating cross-talk and/o

Method and circuit arrangement for detecting speech in a telepho

Method and device for analysis of a return signal and adaptive e

Method and device for echo cancellation using power...

Method and system for eliminating acoustic echos in a digital te

Method and system for selecting a frequency for...

Method for avoiding self-oscillation in conjunction with echo ca