Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
12/1995
12/27/1995EP0688472A1 A connector element for telecommunication
12/26/1995US5479504 Low voltage balanced hybrid circuit with operational amplifiers
12/26/1995US5479503 Two-wire to four-wire switching exchanger
12/26/1995US5479439 For use in a communications network
12/20/1995EP0688116A1 Equatisation method for a bidirectional transmission system
12/20/1995EP0688110A2 Method and apparatus for adaptive dual decision equalization in multipath fading channels
12/20/1995EP0688099A1 Adaptive filter capable of removing a residual echo at a rapid speed
12/20/1995EP0687398A1 Receive side pulse width controlled adaptive equalizer
12/20/1995EP0628145B1 Method for detecting fault locations
12/19/1995US5477535 Method of preventing a divergence of an adaptive echo canceller in a noisy signal environment
12/19/1995US5477504 Balanced, double-sided calibration circuit for sensor element and differential preamplifier
12/19/1995US5477367 Optical transmission system
12/18/1995CA2151646A1 Method and apparatus for transmitting data over a power cable utilizing a magnetic saturable core reactor
12/14/1995WO1995034152A1 Vehicle communications network transceiver, ground translation circuit therefor
12/14/1995WO1995034130A1 High speed transport system
12/13/1995EP0623251B1 Device for providing electric power from a signal transmitter
12/12/1995US5475710 Adaptive equalizer and receiver
12/12/1995US5475385 Analogue telemetry system and method for fault detection in optical transmission systems
12/12/1995US5475360 Power line carrier controlled lighting system
12/12/1995CA2060117C Predistorter for linearization of electronic and optical signals
12/07/1995WO1995033351A1 Fixed cellular terminal device providing a two-wire telecommunications service
12/07/1995WO1995033306A1 Signal processing device
12/06/1995EP0685936A2 Adaptive antenna matching
12/05/1995US5473702 Adaptive noise canceller
12/05/1995US5473699 Vehicle internal noise reduction system
12/05/1995US5473686 Echo cancellation apparatus
12/05/1995US5473600 Apparatus for high-speed data communications
12/05/1995CA2075078C Process for remote action taking, especially in a nuclear waste deep storage site
11/1995
11/30/1995WO1995032564A1 Efficient data storage arrangement for far-end echo canceller
11/30/1995WO1995032561A1 In-line predistorter for linearization of electronic and optical signals
11/30/1995DE4418792A1 Echo compensation for transmission systems
11/29/1995EP0684706A1 Replica producing adaptive demodulating method and demodulator using the same
11/29/1995EP0684681A1 Device for coupling with the electricity distribution network of apparatuses for data transmission
11/29/1995EP0684594A2 Coherence optimized active adaptive control system
11/29/1995EP0683940A1 Process and device for the detection of disabling tone of the echo canceller in a telephone switching exchange.
11/29/1995EP0663085A4 Method and apparatus for reduced-complexity viterbi-type sequence detectors.
11/29/1995EP0470185B1 Power-line communication apparatus
11/29/1995CN2214053Y Power wire carrier telephone disk
11/29/1995CN1112755A Interface circuit with transparent impedance
11/28/1995US5471538 Microphone apparatus
11/28/1995US5471528 Voice switched speakerphone with filters having exponential transfer function in the monitoring path
11/28/1995US5471501 Enhanced digital communications receiver using channel impulse estimates
11/28/1995US5471190 Method and apparatus for resource allocation in a communication network system
11/28/1995US5471010 Spatially separated uninsulated twisted wire pair
11/28/1995CA2055847C Decision feedback equalizer
11/23/1995WO1995031867A1 Method and system for compensating for coupling between circuits of quaded cable in a telecommunication transmission system
11/22/1995EP0630543B1 Circuit for transmitting small, low energy signals and large, essentially higher energy signals
11/22/1995CN2213406Y Bus line connected type breeper extension
11/21/1995US5469510 Arbitration adjustment for acoustic reproduction systems
11/21/1995US5469502 Telecommunication system for selecting optimum transfer rate
11/21/1995US5469462 Receiving arrangement including a variable equalizer which variable equalizer is controlled on the basis of one or more signal portions produced by the variable equalizer
11/21/1995US5469156 Field sensor communication system
11/21/1995CA2021706C Optical fiber telecommunication line including amplifiers distributed along the line for the transmitted signals
11/16/1995WO1995031052A1 Echo canceler and echo path estimating method
11/16/1995WO1995031051A1 Echo canceler and its learning method
11/16/1995WO1995031050A1 Method and device for detecting double-talk, and echo canceler
11/16/1995DE4292231C2 Method and system for communication channel gain calculation
11/14/1995US5467370 Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling
11/14/1995US5467061 Flat cable to flat parallel wire cable
11/14/1995US5467011 System for detection of the phase of an electrical signal on an alternating circuit power line
11/14/1995CA1337568C Method for cancelling echo in a transmitter and an apparatus therefor
11/09/1995WO1995030273A1 Signal conditioning apparatus
11/08/1995EP0681291A2 Method for equalising corrupted data signals
11/08/1995CN1111422A Warning system for closed-circuit TV line in shared antenna
11/02/1995WO1995029537A1 Powerline communications network employing tdma, fdma and/or cdma
11/02/1995WO1995029536A1 Hybrid electricity and telecommunications distribution network
11/02/1995EP0680183A2 Method for setting the parameters of an equaliser
10/1995
10/31/1995US5463662 Apparatus and method for reducing errors in data caused by noise through use of blanking
10/31/1995US5463661 TX preemphasis filter and TX power control based high speed two wire modem
10/31/1995US5463618 Echo canceller
10/27/1995CA2145703A1 A noise-controlled communication apparatus
10/26/1995WO1995028774A1 Determining echo return loss in echo cancelling arrangements
10/26/1995WO1995028773A1 Improved adsl compatible discrete multi-tone apparatus
10/26/1995WO1995028760A1 Process for the low-energy interrogation of binary states over long lines
10/26/1995DE4444259C1 Electronic circuit for operation of number of electrical loads
10/26/1995DE4414224A1 LF small signal leads transmission distortions compensation method
10/26/1995DE4413513A1 Controlling and monitoring electrical loads using microprocessor
10/25/1995EP0679007A1 Sound modification for use in simultaneous voice and data communications
10/25/1995EP0678995A1 System with apparatus communicating tarification changes
10/25/1995EP0678979A2 Coupler communication systems which utilize more than one frequency band
10/25/1995EP0628170B1 Process for detecting non-linear behaviour in a digital data transmission path to be examined
10/25/1995CN1110885A Bridge-tap equalizer method and apparatus
10/24/1995US5461661 Line disconnection detection circuit for echo-cancelling transceivers
10/24/1995US5461629 Error correction in a spread spectrum transceiver
10/19/1995WO1995028041A1 Apparatus and method for detecting a signal in a communications system
10/19/1995WO1995028040A1 Apparatus and method for reducing errors in data caused by noise through the use of blanking
10/18/1995EP0586554A4 Binary data error correction using hint signal
10/17/1995US5459420 Integrated circuit and its connecting circuit
10/17/1995US5459284 Twisted-pair wire bond and method thereof
10/12/1995WO1995027344A1 An electronic filter
10/12/1995DE19506324C1 Adaptive balance filter guaranteeing optimal matching to line
10/12/1995CA2146579A1 Received signal processing device, particularly for a mobile digital radiocommunication system
10/11/1995EP0676869A1 Reception processing apparatus with switchable decision block for reduction of power consumption
10/11/1995EP0676108A1 Apparatus and method for fault detection on redundant signal lines via encryption.
10/11/1995EP0653115A4 Polarity reversing dc power supply for remotely located equipment.
10/11/1995CN1110071A Decision feedback equalizer method and apparatus
10/05/1995WO1995024089A3 A termination network and a control circuit
10/05/1995CA2143484A1 Sound modification for use in simultaneous voice and data communications
10/04/1995EP0675622A2 Process and system for transferring vector signal with precoding for signal power reduction
10/04/1995EP0675607A2 Cable crosstalk measurement system
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