Call control of ancillary telecommunications equipment using...

Circuit and method of double talk detection for use in handsfree

Circuit arrangement for the analogue suppression of echoes

Circuit configuration for two-wire/four-wire conversion

Circuit for removing in-band FSK signals without muting of...

Circuit method and system for transmitting information

Combined parallel adaptive equalizer/echo canceller

Communication system

Communication system for controlling training of echo...

Communications system and method utilizing centralized...

Compact cable balance network for echo-cancelling, and...

Computer apparatus having a multiway acoustic output and...

Conference terminal with echo reduction for a voice...

Configurable echo canceller

Consolidated noise injection in a voice processing system

Consolidated voice activity detection and noise estimation

Consolidated voice activity detection and noise estimation

Control logic for echo canceller with double talk detector

Control method and device for echo canceller

Control of echo cancellers in a telecommunication system