Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
10/1999
10/27/1999EP0951757A1 A termination circuit
10/26/1999US5974091 Composite trellis system and method
10/26/1999US5973725 Co-channel interference canceler and method therefor
10/26/1999US5973610 System for automated selection of a communications unit for refrigerating containers
10/21/1999WO1999053627A1 System for communicating with electronic equipment on a network
10/21/1999WO1999053626A1 Digital communication device
10/21/1999WO1999039453A3 A method for cancelling echoes in a communication system, a communication device, and a radio base station of a cordless telephone device
10/21/1999DE19817575A1 Kapazitives Koppelkabel zur Signalübertragung auf Hoch- und Mittelspannungsstromleitungen Capacitive coupling cable for signal transmission at high and medium voltage power lines
10/20/1999EP0951150A2 Apparatus and method for determining an optimum equalizer setting for a signal equalizer in a communication network receiver
10/20/1999EP0950306A1 Method and device for formatting a clipping noise in a multicarrier modulation
10/19/1999US5970154 Apparatus and method for echo cancellation
10/19/1999US5970138 Terminal equipment for telecommunications and information processing
10/19/1999US5970127 Caller identification system for wireless phone jacks and wireless modem jacks
10/19/1999US5970094 Adaptive equalizer employing filter input circuit in a circular structure
10/19/1999US5970093 Fractionally-spaced adaptively-equalized self-recovering digital receiver for amplitude-Phase modulated signals
10/19/1999US5969567 Circuit configuration for line adaptation and echo suppression
10/19/1999US5968122 Method for propagating between views of connection object status in network
10/14/1999WO1999052233A1 Adaptive reference pattern for spread spectrum detection
10/14/1999WO1999052220A1 Distribution system for external communication signals and data
10/14/1999WO1999052210A1 Component carrier
10/14/1999WO1999045656A3 A differential line driver
10/14/1999DE19815942A1 Vielkanal-Echocanceller mit Compander Multi-channel echo canceller with compander
10/14/1999CA2327417A1 Distribution system for external communication signals and data
10/13/1999EP0949784A2 Reduction of cross-talk in broadband systems
10/13/1999EP0949767A2 Multichannel echo canceller with compander
10/13/1999EP0664187B1 Grinding tape and method of manufacturing the same
10/13/1999CN2343719Y Information button remote-communication apparatus for cycle checking management system
10/13/1999CN1231543A Mixing amplifier
10/12/1999US5966410 Method and system for cleaning a frequency band
10/12/1999US5966371 Method and system for reducing interbeam interference and multipath fading in bent-pipe satellite communications systems
10/12/1999CA2168532C Adaptively controlled filter
10/09/1999CA2267580A1 Multichannel echo canceller with a compander
10/07/1999WO1999050971A1 Method for controlling at least one electric consumer connected to a control device, and a corresponding circuit
10/07/1999WO1999050970A1 A method and an arrangement in an analog line interface circuit
10/07/1999DE19816358A1 Verfahren zur Steuerung der Schrittweite eines Echokompensators mit adaptivem Filter Method for controlling the step size of an echo canceller with an adaptive filter
10/07/1999DE19815040A1 Verfahren und Vorrichtung zur Signalübertragung über Stromversorgungsleitungen Method and apparatus for signal transmission via power supply lines
10/07/1999DE19814366A1 Verfahren zur Steuerung wenigstens eines mit einer Steuerungseinrichtung verbundenen elektrischen Verbrauchers und entsprechende Schaltungsanordnung A method for controlling at least one electrical consumer connected to a control means and appropriate circuitry
10/07/1999CA2326429A1 A method and an arrangement in an analog line interface circuit
10/06/1999EP0948143A2 Method and device for signal communication over power lines
10/06/1999EP0948142A2 Method for controling the stepsize of an echo canceller with adaptive filter
10/06/1999EP0948133A2 Digital filter with efficient quantization circuitry
10/06/1999EP0947057A1 Double talk and echo path change detection in a telephony system
10/06/1999EP0878060B1 A system and method for performing echo cancellation in a communications network employing a mixed mode lms adaptive balance filter
10/06/1999CN1045507C Wired transmission intelligence power consumption metering controlling instrument
10/06/1999CA2267587A1 Apparatus and method for reducing cross-talk in broadband systems and method of improving data recovery
10/05/1999US5963599 Truncated maximum likelihood sequence estimator
10/05/1999US5963593 Line equalizer control method, and integrating circuit, frequency shift circuit and transmission device
10/05/1999US5961619 Method and apparatus for automatic activation of bus termination on a fast ethernet repeater stack
09/1999
09/30/1999DE19819219C1 Electrode line monitoring method for bipolar HV DC transmission installation
09/30/1999DE19813700A1 Input circuit for field equipment for communications with bi-directional signal overlaid on analogue control signal
09/29/1999EP0945041A2 Measuring device for the interface of a transmission link with full duplex transmission in a two-wire common frequency operation
09/29/1999EP0944977A1 Method and apparatus for digital symbol detection using transmission medium response estimates
09/29/1999EP0944945A2 Improvements relating to signalling in electricity distribution systems
09/29/1999EP0843917B1 Improvements in or relating to power switching of optical fibre cable branching units
09/29/1999CN1230059A Communication device and method for interference suppression using adaptive equalization in spread spectrum communication system
09/28/1999US5960077 Echo canceller
09/28/1999US5959293 Defective portion detecting device with a horizontal synchronized signal
09/28/1999CA2161358C Method and apparatus for multi-channel acoustic echo cancellation
09/23/1999WO1999048340A1 Apparatus for and method of transmitting and receiving data over a low voltage power distribution system
09/23/1999WO1999048224A1 Telecommunications signal coupler apparatus and method
09/23/1999WO1999048223A1 Carrying speech-band signals over a power line communications system
09/23/1999WO1999048222A1 Transmitting communications signals over a power line network
09/23/1999WO1999048218A1 Power line carrier data link with embedded modem in base unit
09/23/1999WO1999048186A1 Network coupling device and method
09/23/1999WO1999041897A3 Method for improving acoustic noise attenuation in hand-free devices
09/23/1999DE19812013A1 Network coupling arrangement coupling at least one application to a network enables power consumption of application to be drastically reduced and battery-powered operation over long period
09/23/1999DE19809570A1 Electric signal line e.g. for TTL integrated circuit connection to optocoupler
09/23/1999CA2323513A1 Power line carrier data link with embedded modem in base unit
09/23/1999CA2266219A1 Subscriber line tester
09/22/1999CN2340127Y Built-in lock type markstone cap
09/21/1999US5956440 Optical transmission line for wavelength division multiplexed optical signals
09/21/1999US5956384 Apparatus and method for automatically detecting defective lines in a cable and for automatically switching from the defective line to an extra line
09/21/1999US5956371 Adaptive equalizing filter of reduced electric power consumption for use in communication system
09/21/1999CA2113606C Transversal filter capable of processing an input signal of high data rate
09/16/1999WO1999046868A1 Two wire communication system
09/16/1999WO1999046867A1 Gigabit ethernet transceiver
09/16/1999CA2670691A1 Gigabit ethernet transceiver
09/16/1999CA2649659A1 Gigabit ethernet transceiver
09/15/1999EP0942561A2 Adaptive step size for channel estimation
09/15/1999EP0942548A2 Trunk apparatus of a wavelength-division-multiplexing communication system for controlling a gain of an optical amplifier provided therein
09/15/1999EP0942525A1 Adaptive joint linearization, equalization and delay alignment for a wide-band power amplifier
09/15/1999EP0941596A2 Method for measuring qualitative parameters of a permanently connected message transmission link
09/15/1999EP0941584A2 Method of optimizing transmission, and transmitter
09/15/1999CN1228889A System and method for adaptive interference cancelling
09/14/1999US5953658 System and method for eliminating offset echo in a data connection over a cellular cordless telephone service
09/14/1999US5953410 In a signal transmission system
09/14/1999US5952914 Power line communication systems
09/14/1999US5951626 For synthesizing an approximation of a system
09/14/1999CA2129102C Feedback level estimator between loudspeaker and microphone
09/14/1999CA2106703C Process and filter for determining the transmittance of a filtering circuit designed to convert the pulse response of a filter into a minimal phase response
09/10/1999WO1999045656A2 A differential line driver
09/10/1999WO1999035814A3 Methods and apparatus for improved echo suppression in communications systems
09/08/1999CN1228220A Optical transmission systems using optical amplifiers and wavelength division multiplexing
09/08/1999CN1227991A Power wave-carrier digital transmission network communication method
09/07/1999US5949888 Comfort noise generator for echo cancelers
09/07/1999US5949825 For reducing noise on a signal
09/07/1999US5949818 Expandable ethernet network repeater unit
09/07/1999US5949560 Optical transmission system
09/07/1999US5949327 Coupling of telecommunications signals to a balanced power distribution network
09/07/1999CA2158185C Hybrid equalizer arrangement for use in data communications equipment
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