ELECTRONIC ECHO CANCELLER FOR USE

Brand	Owner	Address	Description
DYNAMIC OFFICE BALANCER	DSC COMMUNICATIONS CORPORATION	1000 Coit Road Plano TX 75075	ELECTRONIC ECHO CANCELLER FOR USE WITH TELEPHONE SYSTEMS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Techniques are provided for reducing the magnitude of echo tails in a near-end modem. The invention may use an echo tail canceller to generate a signal that cancels echo tail. One characteristic of the echo tail canceller may be determined during a time when only the near-end modem is scheduled to transmit signals. Another characteristic of the echo tail canceller may be determined at approximately the time that a body echo canceller has reached convergence and may be re-determined periodically thereafter. The near-end modem may subtract from any received signal an echo tail canceller signal generated by the echo tail canceller to cancel echo tail from the received signal.