LandOfFree - US Patents - Listing for Telephonic communications,Substation or terminal circuitry

Telephonic communications – Substation or terminal circuitry – Sidetone control or hybrid circuit

Acoustic feedback cancellation for equalized amplifying systems

Telephonic communications – Substation or terminal circuitry – Noise suppression

Acoustic shock prevention

Telephonic communications – Substation or terminal circuitry – Conversion of signal form

Active noise suppression system for telephone handsets and metho

Telephonic communications – Substation or terminal circuitry – Amplifying

Adaptive amplifier circuit

Telephonic communications – Substation or terminal circuitry – Noise suppression

Adaptive communication systems and methods

Telephonic communications – Substation or terminal circuitry – Noise suppression

Adaptive communication systems and methods

Telephonic communications – Substation or terminal circuitry – Sidetone control or hybrid circuit

Adaptive conferencing pod sidetone compensator connecting to...

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Adaptive energy detector gain control in physical layer...

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Adaptive expander for telephones

Telephonic communications – Substation or terminal circuitry – Sidetone control or hybrid circuit

Adaptive hybrid circuit

Telephonic communications – Substation or terminal circuitry – Sidetone control or hybrid circuit

Adaptive line hybrids

Telephonic communications – Substation or terminal circuitry – Conversion of signal form

Adaptive telephone handset interface

Telephonic communications – Substation or terminal circuitry – Conversion of signal form

Adaptive telephone interface

Telephonic communications – Substation or terminal circuitry – Impedance matching or line equalizing

Adaptive transmission line impedance matching device and method

Telephonic communications – Substation or terminal circuitry

Adaptive transmit amplifier

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Adjustable gain range current mirror

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

ADSL receiver high pass filter architecture

Telephonic communications – Substation or terminal circuitry – Visual signalling

Allowing stand-alone and local control of a single LED

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Ambient noise cancellation for voice communication device