LandOfFree - US Patents - Listing for Telephonic communications

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

Digital screen phone terminal with graphical user interface

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

Digital secretary

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – With blocking of normal usage

Digital service unit

Telephonic communications – Centralized switching system – Structure of equipment

Digital signal cross-connect panel

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

Digital signal cross-connection system

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

Digital signal detector and method

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

Digital signal processor for radio base station

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Using portable test set

Digital signal processor-based telephone test set analyzing...

Telephonic communications – Subscriber line or transmission line interface

Digital signal transmitting circuit for telephone network

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

Digital simulcast transmission system

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

Digital simulcast transmission system

Telephonic communications – Substation or terminal circuitry – Amplifying

Digital sound level control apparatus

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Digital subscriber line (DSL) modem compatible with home...

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

Digital subscriber line access and network testing multiplexer

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

Digital subscriber line access and network testing multiplexer

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission

Digital subscriber line diagnostic system

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission

Digital subscriber line diagnostic system

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

Digital subscriber line modem utilizing echo cancellation to...

Telephonic communications – Special services – Service profile

Digital subscriber line network deployment method