LandOfFree - US Patents - Listing for Telephonic communications

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

Adaptive filter including signal path compensation

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

Adaptive filter system having mixed fixed point or floating poin

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

Adaptive filter utilizing proportional affine projection...

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

Adaptive filter with coefficient averaging and method

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

Adaptive filtering method and apparatus employing modified fast

Telephonic communications – Subscriber line or transmission line interface – For line length compensation

Adaptive frequency dependent compensation for telecommunications

Telephonic communications – Echo cancellation or suppression – Having analog variolosser or attenuator

Adaptive gain control based on echo canceller performance...

Telephonic communications – With usage measurement – Call charge metering or monitoring

Adaptive handling of pulse-train signals in a voice gateway

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

Adaptive hybrid

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

Adaptive hybrid circuit

Telephonic communications – Audio message storage – retrieval – or synthesis – Dynamic audio signal recording or reproduction

Adaptive incoming call processing

Telephonic communications – Echo cancellation or suppression

Adaptive interference cancellation for ADSL

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

Adaptive line hybrids

Telephonic communications – Subscriber line or transmission line interface

Adaptive linefeed control for varying load on a subscriber loop

Telephonic communications – Supervisory or control line signaling – Signal receiver

Adaptive method and apparatus for detecting a stutter dial tone

Telephonic communications – With usage measurement – Call charge metering or monitoring

Adaptive method for allocating calls

Telephonic communications – Centralized switching system – With generating of call associated substation signal

Adaptive multitone signaling method

Telephonic communications – Terminal – Having muting

Adaptive mute

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

Adaptive no balance DX signalling circuit