| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 07/19/1994 | US5331214 Load control device having abnormal condition detecting for serial signal line, transmitter and receiver |
| 07/13/1994 | EP0605960A1 A technique for reducing echoes in conference communications |
| 07/13/1994 | EP0605549A1 Handsfree telephone apparatus |
| 07/12/1994 | US5329587 Low-delay subband adaptive filter |
| 07/12/1994 | US5329586 Nonlinear echo canceller for data signals using a non-redundant distributed lookup-table architecture |
| 07/12/1994 | US5329190 Termination circuit |
| 07/12/1994 | CA2001277C Hands free telecommunications apparatus and method |
| 07/07/1994 | WO1994015427A1 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization |
| 07/07/1994 | WO1994015420A1 Apparatus and method for fault detection on redundant signal lines via encryption |
| 07/07/1994 | CA2134559A1 Apparatus and method for fault detection on redundant signal lines via encryption |
| 07/06/1994 | EP0605305A1 Remote power feeding unit for communications equipment |
| 07/06/1994 | EP0605281A1 Method of vectorial noise reduction in speech and device for performing said method |
| 07/06/1994 | EP0605107A2 Method of excho amplitude reduction in modem communications |
| 07/06/1994 | EP0604956A2 Decision feedback equalizer with adaptive filter array operating as feedforward filter of the equalizer |
| 07/06/1994 | EP0604948A2 Echo canceller with adaptive suppression of residual echo level |
| 07/06/1994 | EP0604870A2 Voice activity detector for controlling echo canceller |
| 07/06/1994 | EP0604678A1 Operation method for a receiver fed with information transmitted over electric supply network and arrangement for carrying it |
| 07/05/1994 | US5327495 Apparatus and method for controlling an echo canceler |
| 07/05/1994 | US5327460 Method and apparatus for filtering post decision feedback equalization noise |
| 07/05/1994 | US5327459 Semiconductor integrated circuit containing an automatic equalizer including a circuit for periodically updating a plurality of tap coefficients at varying frequencies |
| 07/05/1994 | US5327277 Method and apparatus for determining equalization delays in a transmission system and related apparatus |
| 07/05/1994 | US5327129 Accuracy bootstrapping |
| 07/05/1994 | CA2026558C Adaptive digital filter including low-pass filter |
| 07/05/1994 | CA1330583C Gateway for use in load control system |
| 06/29/1994 | EP0604208A2 Adaptive equalizer |
| 06/28/1994 | US5325396 Digital synthesizer |
| 06/28/1994 | US5325319 Filtering a signal with the use of approximate arithmetical division |
| 06/23/1994 | WO1994014252A1 Rf communication system using waveguide disposed within modular furnishings |
| 06/23/1994 | WO1994014249A1 Process for transmitting data via a heavy current line |
| 06/23/1994 | WO1994014248A1 Far end echo canceller |
| 06/23/1994 | DE4320301A1 Communications circuit used in automobile |
| 06/23/1994 | DE4242753A1 Super-luminal communications device for electrical signal |
| 06/22/1994 | EP0602957A1 System and method for the transmission of audio signals over an optical channel |
| 06/22/1994 | EP0602249A1 Maximum likelihood sequence estimating device and method therefor |
| 06/21/1994 | US5323459 Multi-channel echo canceler |
| 06/21/1994 | US5323423 Receive side pulse width controlled adaptive equalizer |
| 06/21/1994 | US5323422 Adaptive receiver apparatus |
| 06/21/1994 | US5323421 Method and apparatus of estimating channel quality in a receiver |
| 06/16/1994 | CA2111515A1 System and method for signal transmission |
| 06/15/1994 | EP0601082A1 Adaptive echo canceller for voice messaging system |
| 06/15/1994 | CN1088044A Methods for operating ghost-cancellation circuitry for TV receiver or video recorder |
| 06/15/1994 | CA2102465A1 Method for transferring information using modems |
| 06/14/1994 | US5321736 Distributed RF repeater arrangement for cordless telephones |
| 06/14/1994 | US5321724 Interference suppression system |
| 06/14/1994 | US5321723 Automatic equalizer |
| 06/14/1994 | US5321597 Galvanic isolation device for direct current electrical signals or electrical signals likely to include a direct current component |
| 06/14/1994 | CA1330243C Circuit arrangement for the regeneration of digital signals received in analog form |
| 06/09/1994 | WO1994013120A1 A method of electronic control |
| 06/08/1994 | EP0600739A2 Video ghost cancellation |
| 06/08/1994 | EP0409844B1 Amplifier arrangement and communication line circuit using same |
| 06/07/1994 | US5319674 Method for self-training adaptive equalization |
| 06/07/1994 | US5319636 Device and method for linear listener echo cancellation |
| 06/07/1994 | US5319634 Multiple access telephone extension systems and methods |
| 06/07/1994 | US5319585 High resolution filtering using low resolution processors |
| 06/05/1994 | CA2110421A1 Optical transmission system |
| 06/01/1994 | EP0599402A1 Echo canceller, telecommunication system and station with such an echo canceller |
| 06/01/1994 | EP0599311A2 Clock recovery circuit |
| 06/01/1994 | EP0599120A1 Regenerator for binary signals |
| 05/31/1994 | US5317596 Method and apparatus for echo cancellation with discrete multitone modulation |
| 05/31/1994 | US5317392 Noise reducing device for up-going signals in bidirectional CATV system |
| 05/31/1994 | CA2018836C Training method for an echo canceller for use in a voice conference system |
| 05/31/1994 | CA2010652C Echo canceller having fir and iir filters for cancelling long tail echoes |
| 05/26/1994 | WO1994011977A1 Contactless slip ring signal coupler |
| 05/25/1994 | EP0598655A1 Training sequence for channel estimation and corresponding estimation apparatus |
| 05/25/1994 | EP0598347A2 Two stage accumulator for use in updating coefficients |
| 05/24/1994 | US5315621 Adaptive nonrecursive digital filter and method for forming filter coefficients therefor |
| 05/24/1994 | US5315590 Selectable repeater port reconnection method and apparatus |
| 05/24/1994 | US5315585 Echo canceller using two residual echoes |
| 05/24/1994 | CA2027495C Procedure and apparatus for amplification of a burst signal |
| 05/24/1994 | CA1329834C Selective active cancellation system for repetitive phenomena |
| 05/24/1994 | CA1329833C Echo canceller |
| 05/24/1994 | CA1329832C Apparatus and method for echo cancellation |
| 05/24/1994 | CA1329831C Analog-to-digital and digital-to-analog conversion system and echo cancellation device including the same |
| 05/19/1994 | CA2103295A1 Training sequence for estimating a transmission channel and estimation device therefore |
| 05/18/1994 | EP0597317A1 Channel impulse response estimator for a viterbi equalizer |
| 05/18/1994 | EP0597201A1 Apparatus and method for noise reduction for a full-duplex speakerphone or the like |
| 05/18/1994 | EP0597172A1 Equipment for data transmission over the electric power supply network |
| 05/18/1994 | EP0597067A1 Circuit for coupling a transmitter unit to a transmission line |
| 05/18/1994 | CN2165575Y Acquisition transmitter for monitoring wave carrier machine |
| 05/17/1994 | US5313498 Method and arrangement of echo elimination in digital telecommunications system |
| 05/17/1994 | US5313411 Adaptive receiver capable of achieving both of matched filtering function and carrier recovery function |
| 05/17/1994 | CA1329651C Signal spreader |
| 05/17/1994 | CA1329642C Arrangement for combating intersymbol interference and noise |
| 05/11/1994 | WO1994010790A1 Outbound signal detector system and method |
| 05/11/1994 | WO1994010789A1 Apparatus and method for controlling an echo canceler |
| 05/11/1994 | WO1994010760A1 Echo compensation device |
| 05/11/1994 | WO1994010759A1 Switchable attenuation device |
| 05/11/1994 | EP0596610A2 Decorrelation controllers for adaptive digital filters |
| 05/11/1994 | EP0596563A1 Filter device to carry out a least squares method using rotation matrixes |
| 05/11/1994 | CA2147973A1 Switchable attenuation device |
| 05/11/1994 | CA2147867A1 Echo compensation device |
| 05/10/1994 | US5311558 Data receiver comprising a control loop with reduced sampling frequency |
| 05/10/1994 | US5311546 Carrier phase recovery for an adaptive equalizer |
| 05/10/1994 | US5311503 Terminal apparatus for full-duplex data transmission having an echo canceller |
| 05/10/1994 | US5311314 Method of and arrangement for suppressing noise in a digital signal |
| 05/10/1994 | US5311155 Method and apparatus for imparting a linear frequency response to a signal |
| 05/10/1994 | US5310363 Impedance matched reduced cross talk electrical connector system |
| 05/05/1994 | DE4290581C2 Signalwichtungssystem für einen Digitalempfänger Signal weighting system for a digital receiver |
| 05/05/1994 | DE4236408A1 Schaltbare Dämpfungsvorrichtung Switchable attenuation device |
| 05/04/1994 | EP0595483A1 Methods and apparatus for automatic switching between transmission of a spectrally redundant outgoing signal and reception of an incoming signal |