LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Echo cancellation or suppression

Adaptive echo cancellation device in a voice communication...

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Adaptive echo cancellation method

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Adaptive echo cancellation method and device for implementing sa

Telephonic communications – Echo cancellation or suppression

Adaptive echo cancellation used with echo suppression to reduce

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Adaptive echo canceller

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation

Adaptive echo canceller for voice messaging system

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Adaptive echo canceller with sparse dynamically positioned taps

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Adaptive echo cancelling system for telephony applications

Telephonic communications – Supervisory or control line signaling – Signalling integrity protection

Adaptive efficient single/dual tone decoder apparatus and method

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Adaptive energy detector gain control in physical layer...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

Adaptive equalizer

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Adaptive expander for telephones

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

Adaptive expansion table in a digital telephone receiver

Telephonic communications – Special services – Service trigger

Adaptive feature behavior

Telephonic communications – Centralized switching system – Call distribution to operator

Adaptive feedback arrangement for controlling agent...

Telephonic communications – Subscriber line or transmission line interface – Network interface device

Adaptive filter and echo canceller

Telephonic communications – Echo cancellation or suppression – Using digital signal processing

Adaptive filter and echo canceller using the same

Telephonic communications – Echo cancellation or suppression

Adaptive filter and method for implementing echo cancellation

Telephonic communications – Echo cancellation or suppression – Using digital signal processing

ADAPTIVE FILTER FOR ECHO CANCELLATION, METHOD FOR OPERATING...