Patents for H04B 3 - Line transmission systems (31,523) |
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06/29/1995 | DE4343950A1 Additional information transmitting circuitry for video, audio or data signal |
06/28/1995 | EP0660543A2 System and method of adaptive maximum likelihood sequence estimation |
06/28/1995 | EP0660321A2 Reproduced waveform equalization circuit |
06/28/1995 | EP0660287A1 Locally powered control system having a remote sensing unit with a two wire connection |
06/28/1995 | EP0659312A1 Decision feedback equalizer method and apparatus |
06/28/1995 | EP0659311A1 Bridge-tap equalizer method and apparatus |
06/28/1995 | EP0583397A4 Power line coupling network. |
06/28/1995 | CN2202381Y Controller for preventing theft of telecommunication line |
06/28/1995 | CN1104373A Interconnection structure for crosstalk reduction toimprove off-chip selectivity |
06/28/1995 | CA2138727A1 Locally powered control system having a remote sensing unit with a two wire connection |
06/27/1995 | US5428681 Apparatus and method for reducing the risk of undesirable parameter drift of an adaptive filter used for echo cancellation |
06/27/1995 | US5428605 Method and echo canceller for echo cancellation with a number of cascade-connected adaptive filters |
06/27/1995 | US5428604 Training method for an echo canceller for use in a voice conference system |
06/27/1995 | US5428562 For use in echo cancellation |
06/22/1995 | WO1995017053A1 Surveillance of optical broad-band connection lines up to a passive interface |
06/22/1995 | WO1995017050A1 Bar code data communication via power lines |
06/22/1995 | WO1995017049A1 Method of mitigating the effects of clipping or quantization in the d/a converter of the transmit path of an echo canceller |
06/22/1995 | WO1995017046A1 An improved discrete multitone echo canceler |
06/22/1995 | CA2178952A1 Surveillance of optical broad-band connection lines up to a passive interface |
06/21/1995 | EP0659015A1 Frame synchronizer and a signal switching apparatus |
06/20/1995 | US5426706 Remote simultaneous interpretation system |
06/20/1995 | US5426389 System for DC restoration of serially transmitted binary signals |
06/17/1995 | CA2132754A1 Frame synchronizer and a signal switching apparatus |
06/15/1995 | WO1995016316A1 Optimization of transmitted pulse shape and receiver timing in digital system |
06/14/1995 | DE4434723C1 Adaptive network for digital transmission system |
06/14/1995 | CN1028944C Passive universal communicator system |
06/13/1995 | US5425098 Data transmitter-receiver having echo canceler with data delay |
06/13/1995 | US5425052 High impedance directional signal separator for extracting and separating respective signalling components of a wireline full-duplex digital data link |
06/13/1995 | US5424710 Power coupler for coupling power from a transmission line to a node thereon |
06/08/1995 | WO1995015598A1 Reducing crosstalk connector |
06/08/1995 | DE4340899A1 Meßvorrichtung zum Testen der Verbindungen zwischen wenigstens zwei Baugruppen Measuring device for testing the connections between at least two modules |
06/07/1995 | EP0656713A1 Phase offset estimation for PSK receiver |
06/07/1995 | EP0656696A2 DC energy coupling to a two-wire bus for energy and data transmission |
06/07/1995 | EP0656695A1 Method for the adaptive control of a digital echo canceller in a telecommunication system |
06/07/1995 | EP0656694A2 Equalizer with line length detection |
06/07/1995 | EP0656590A2 Measuring device to test the connection between at least two subassemblies |
06/07/1995 | CN1028808C Signal conditioner |
06/06/1995 | US5422606 Automatic equalizer |
06/06/1995 | CA2023178C Wideband digital equalizers for subscriber loops |
06/03/1995 | CA2137130A1 Method for the adaptive control of a digital echo canceller in a telecommunication system |
06/01/1995 | WO1995015036A1 Method and apparatus for signal coupling at medium voltage in a power line carrier communications system |
06/01/1995 | WO1995015035A1 Method and apparatus for testing telecommunications equipment |
06/01/1995 | DE3152560C2 Method and device for processing a measurement signal subject to fluctuations |
06/01/1995 | CA2177282A1 Method and apparatus for signal coupling at medium voltage in a power line carrier communications system |
06/01/1995 | CA2171864A1 Method and apparatus for testing telecommunications equipment |
05/31/1995 | EP0655849A1 Apparatus and method for avoiding false convergence states of an adaptive circuit included in a digital receiver |
05/31/1995 | EP0655848A2 Automatic gain control circuit for a digital baseband line equalizer |
05/30/1995 | US5420921 Method for the detection of a disable tone signal of an echo canceller |
05/30/1995 | US5420886 Digital transmission equipment |
05/30/1995 | US5420884 Automatic equalizer |
05/30/1995 | US5420551 Circuit for broadband video transmission over unshielded twisted wire pairs |
05/26/1995 | WO1995014331A1 A bidirectional amplifier |
05/24/1995 | EP0654191A1 Apparatus and methods employing distribution preserving tomlinson precoding in transmission of digital data signals |
05/24/1995 | EP0497879B1 Transmission of broadband signals |
05/23/1995 | US5418849 Procedure and device for adaptive digital cancellation of the echo generated in telephone connections with time-variant characteristics |
05/23/1995 | US5418848 Control logic for echo canceller with double talk detector |
05/23/1995 | US5418821 Method and apparatus for sample-data receiver squelch |
05/23/1995 | US5418817 Adaptive equalization system and method |
05/23/1995 | US5418816 Automatic equalizer |
05/23/1995 | US5418778 Local and remote echo canceling apparatus particularly adapted for use in a full duplex modem |
05/23/1995 | US5418637 Cascaded distortion compensation for analog optical systems |
05/17/1995 | EP0653115A1 Polarity reversing dc power supply for remotely located equipment |
05/17/1995 | EP0653111A1 Reverse-polarity protection by means of a protecting element having a reduced surface. |
05/17/1995 | EP0653110A1 Reverse-polarity protection with reduced element surface. |
05/16/1995 | US5416846 Noise control system and method |
05/16/1995 | US5416844 Apparatus for reducing noise in space applicable to vehicle passenger compartment |
05/16/1995 | US5416799 Dynamically adaptive equalizer system and method |
05/11/1995 | WO1995012958A1 A system for automated selection of a communications unit for refrigerating containers |
05/11/1995 | WO1995012926A1 Replica producing adaptive demodulating method and demodulator using the same |
05/11/1995 | WO1995012919A1 A variable block size adaptation algorithm for noise-robust acoustic echo cancellation |
05/11/1995 | WO1995012916A1 Remote power supply unit |
05/10/1995 | EP0652659A2 Digital signal transmission circuit |
05/10/1995 | EP0651925A1 Frequency hopping time-diversity communications systems and transceivers for local area networks |
05/10/1995 | CA2135321A1 Interface circuit between a four wire line and a two wire line |
05/09/1995 | US5414767 Transmit/receive station for use in a data communication system |
05/09/1995 | US5414766 Process and device for adaptive digital cancellation of the echo generated in time-varying telephone connections |
05/09/1995 | US5414571 Adaptive equalization circuit for magnetic recording apparatus having high error immunity |
05/09/1995 | US5414348 Measurement device with common mode current cancellation |
05/04/1995 | WO1995012249A1 Pipelined viterbi recorder |
05/03/1995 | EP0651535A2 Multi-port repeater |
05/02/1995 | US5412735 Adaptive noise reduction circuit for a sound reproduction system |
05/02/1995 | US5412716 System for efficiently powering repeaters in small diameter cables |
05/02/1995 | US5412643 Duplex field bus system |
05/02/1995 | US5412356 Digital interface cable |
04/27/1995 | DE4438836A1 Circuit arrangement |
04/27/1995 | DE4292034C2 Method for optimising a refresh coefficient for an adaptive filter |
04/26/1995 | EP0650281A1 Adaptive precoding and preemphasis for trellis coded modulation systems |
04/26/1995 | EP0650267A1 Transmission system |
04/26/1995 | EP0650194A1 High density dynamic bus |
04/26/1995 | EP0649582A1 Margin test apparatus for integrated services digital networks |
04/25/1995 | US5410595 Apparatus and method for noise reduction for a full-duplex speakerphone or the like |
04/25/1995 | US5410556 Pipelined viterbi decoder |
04/25/1995 | US5410292 Method and system for communicating information within a dwelling or a property |
04/23/1995 | CA2132782A1 Transmission system |
04/23/1995 | CA2130538A1 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel |
04/19/1995 | EP0649257A2 Transmission system minimizing interference in digital transmission |
04/19/1995 | EP0649235A1 Method and apparatus for channel equalization |
04/19/1995 | EP0648397A1 Method for fail-safe operation in a speaker phone system |
04/18/1995 | US5408530 Echo cancelling method and echo canceller using the same |
04/18/1995 | US5408497 Transceiver for transmitting and receiving stair-stepped sinusoidal waveforms |