LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Special services – Conferencing

Human communication system

Telephonic communications – Special services – Anonymous party

Human machine interface for telephone feature invocation

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

Hybrid access architecture for voice messaging systems

Telephonic communications – Supervisory or control line signaling – Substation originated

Hybrid alphanumeric telephone directory

Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit

Hybrid amplifier

Telephonic communications – Echo cancellation or suppression

Hybrid balance and combination codec filter circuit

Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit

Hybrid circuit

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

Hybrid circuit and data communication apparatus

Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit

Hybrid circuit and method

Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit

Hybrid circuit for a broadband modem

Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit

Hybrid circuit for a broadband modem

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection

Hybrid circuit for an electric operating and scanning interface,

Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit

Hybrid circuit having a two-wire/four-wire converting function

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

Hybrid communication devices with one telephone line

Telephonic communications – Subscriber line or transmission line interface – Power supply

Hybrid DC-feed controller for a subscriber line interface...

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

Hybrid echo canceller

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

Hybrid echo canceller controllers

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

Hybrid intelligent network

Telephonic communications – Special services – Service trigger

Hybrid network call delivery routing using a serving...