LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaker gain correction for a hands-free telephone terminal

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaker telephone device comprising a novel noise suppressin

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaker volume range control

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaking telephone instrument

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaking telephone set having an anti-Larsen device for inst

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaking telephone station including directional microphone

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Loudspeaking telephone with a frequency shifting circuit

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

Loudspeaking telephone with a variable gain circuit

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

Low complexity frequency domain echo canceller for DMT...

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

Low cost acknowledge-back system for a pager using existing infr

Telephonic communications – Terminal – Housing or housing component

Low cost adjustable base stand

Telephonic communications – With usage measurement – Call traffic recording by computer or control processor

Low cost call routing system for telecommunications unit

Telephonic communications – Special services – Call diversion

Low cost migration to a VoIP system

Telephonic communications – Polystation line system – Automatic or unattended

Low cost telephone caller identification device and method

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Low current signal compression circuit

Telephonic communications – Centralized switching system – Structure of equipment

Low frequency digital network cross-connect panel

Telephonic communications – Centralized switching system – Structure of equipment

Low frequency telecommunication digital network interface patch

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

Low insertion loss current sense circuit

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

Low loss telephone circuit