Patents
Patents for H04B 3 - Line transmission systems (31,523)
06/2006
06/15/2006US20060126861 Personal listening device for events
06/15/2006US20060126860 Flexible lighting and sound configuration
06/15/2006US20060126711 Method for transmitting an information of a mobile telecommunication system
06/15/2006US20060126540 Apparatus for, and method of, reducing noise in a communications system
06/15/2006US20060125609 Power line coupling device and method of using the same
06/15/2006US20060125572 Balanced nonlinear transmission line phase shifter
06/15/2006US20060125571 Radiation noise suppression circuit for differential transmission line
06/15/2006US20060125570 Radiation noise suppression circuit for differential transmission line
06/15/2006US20060125569 Noise rejection device and cellular phone including the noise rejection device
06/15/2006US20060125515 System for transmission line termination by signal cancellation
06/15/2006US20060124970 Device for data exchange between a transmitter and a receiver
06/15/2006CA2632522A1 Acoustic wave generating apparatus and method
06/15/2006CA2559039A1 Apparatus and method for boosting sound in a denta-mandibular sound-transmitting entertainment toothbrush
06/14/2006EP1670202A1 Method and appartus for spectrum management for communication channels with crosstalk
06/14/2006EP1620976A4 Network topology and packet routing method using low voltage power wiring
06/14/2006EP1532803A4 Method and apparatus for attaching power line communications to customer premises
06/14/2006EP1512269B1 Method and circuit arrangement for recognising load coils
06/14/2006EP1476956B1 Device for transmitting signals between mobile units
06/14/2006EP1171962B1 Determining the physical structure of subscriber lines
06/14/2006DE202005002314U1 Signal transmitting- and/or signal receiving unit connection device for transmission of electrical signals, has active electronic component directly arranged close-to coupler in line path between unit and coupler
06/14/2006DE19861341B4 Method of controlling howling signals in telephone circuit
06/13/2006US7062336 Time-division method for playing multi-channel voice signals
06/13/2006US7062172 Optical transmission system for frequency-multiplexed signal
06/13/2006US7062164 Detection of data transmission rates using passing frequency-selective filtering
06/13/2006US7062050 Preprocessing method for nonlinear acoustic system
06/13/2006US7062041 Device and method for carrying out multichannel acoustic echo cancellation with a variable number of channels
06/13/2006US7062039 Methods and apparatus for improving adaptive filter performance by inclusion of inaudible information
06/13/2006US7062038 System and method of using two coefficient banks in an adaptive echo canceller
06/13/2006US7061979 System and method for determining the data rate of a digital data stream
06/13/2006US7061977 Apparatus and method for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer
06/13/2006US7061872 Managed HDSL repeater
06/13/2006US7061857 System and method for fault isolation for DSL loop extenders
06/13/2006US7061848 Data reproduction apparatus and method with improved performance by adjusting filter coefficients of equalizer
06/13/2006US7061668 Fast optical amplifier control circuit
06/13/2006US7061371 Auto monitor
06/13/2006US7061370 High current inductive coupler and current transformer for power lines
06/13/2006US7061221 Reduced complexity transmission line and waveguide fault tester
06/13/2006US7061136 Method and device for conditioning electric installations in buildings for the rapid transmission of data
06/13/2006US7060906 Integrated communications and power system
06/13/2006CA2350258C Electrical connector
06/13/2006CA2275662C Double talk and echo path change detection in a telephony system
06/08/2006WO2006060679A2 Method and apparatus for waking a person
06/08/2006WO2006060560A2 Flexible lighting and sound configuration
06/08/2006WO2006060530A1 Method and apparatus for providing out of band communications over structured cabling
06/08/2006WO2006031512A3 Wireless communications device with artificial intelligence-based distributive call routing
06/08/2006WO2006023609A3 Full duplex wideband communications system for a local coaxial network
06/08/2006WO2004068638A3 Power line coupling device and method of using the same
06/08/2006US20060121846 Repeater device for communications with an implantable medical device
06/08/2006US20060120475 Receiver, decoder, equalizer and methods for the same
06/08/2006US20060120399 Method enabling multiple communication nodes to access a transmission means on an electrical grid
06/08/2006US20060119594 Automatic equalization of video signals
06/08/2006US20060119449 Common mode radiation inhibit circuit and electronic equipment
06/08/2006US20060119176 Method and system for audio distribution in installations where the use of existing wiring is preferred
06/08/2006DE202006004782U1 Network connection for computers and notebooks, connects computers via power cables whereby mains cable is connected with power supply unit at computer
06/08/2006CA2589903A1 Method and apparatus for waking a person
06/08/2006CA2588711A1 Method and apparatus for providing out of band communications over structured cabling
06/07/2006EP1667339A1 Home-Plug-Adapter
06/07/2006EP1667338A1 Cellular mobile network and method for incorporating a base station of a cellular mobile network in a facility being fed by a power supply system
06/07/2006EP1665572A2 Radio frequency communication between devices via a power plane on a circuit board
06/07/2006EP1665477A1 Modular outlet
06/07/2006EP1514390B1 Receiver with selection between a decision feedback equalizer and a linear equalizer
06/07/2006EP1500204A4 Full duplexing for power line data communications
06/07/2006EP1486010B1 Repeater for power line communication system
06/07/2006EP1222746B1 Receiver for multiuser detection of cdma signals
06/07/2006EP1060574B1 A differential line driver
06/07/2006CN2786849Y Circuitry protecting structure of communication cable remote power supply
06/07/2006CN1784882A Method and arrangement for loop test of a disturbed line
06/07/2006CN1784881A Method and arrangement for signal loop test
06/07/2006CN1784847A Method for the spectral configuration of signals modulated by means of orthogonal frequency division multiplexing (OFDM) for an electrical network
06/07/2006CN1784586A Method and arrangement for estimation of line properties
06/07/2006CN1783744A Aligning circuit in indoor power line communication and transmitt- receiving system using said circuit
06/07/2006CN1258456C Bus type intelligent sensor set for state monitoring
06/06/2006US7058315 Fast decision threshold controller for burst-mode receiver
06/06/2006US7058305 Optical submarine communication system and surge suppressing apparatus of the optical submarine communication system
06/06/2006US7058185 Acoustic echo and noise cancellation
06/06/2006US7058152 Method and apparatus for timing recovery in ADSL transceivers under a TCM-ISDN crosstalk environment
06/06/2006US7058131 Signal transmission system with programmable voltage reference
06/06/2006US7058126 Digital graphametric equalizer
06/06/2006US7058125 Data communications
06/06/2006US7058079 Method for making a call in a multiple bit-rate transmission channel bit-rate switching method, corresponding network section and transmission network
06/06/2006US7057496 Multiplex bus interface system and method for transmitting and receiving power and data
06/06/2006CA2312722C Method and apparatus for cancelling echo originating from a mobile terminal
06/06/2006CA2294874C Drive system for a partition wall system
06/02/2006CA2528769A1 Transmission of protection commands to a remote tripping device
06/01/2006WO2006056043A1 Local coaxial cable wireless distribution network
06/01/2006WO2006020340A3 Method and apparatus for noise reduction
06/01/2006WO2005086630A3 Reduced complexity transmission line and waveguide fault tester
06/01/2006WO2005069883A3 Method and apparatus for transmission line and waveguide testing
06/01/2006US20060115095 Reverberation estimation and suppression system
06/01/2006US20060115094 Howling suppression device and howling suppression method
06/01/2006US20060115078 Echo canceller having improved non-linear processor
06/01/2006US20060115077 Echo canceller employing dual-H architecture having variable adaptive gain settings
06/01/2006US20060114108 Method for automotive lamp control
06/01/2006US20060114076 Element of parallel flat plate line type, a circuit board
06/01/2006DE4447755B4 Rapid signal transmission system between digital circuits, e.g. between CPU and memory arrangement, e.g. integrated memory circuit - uses transmit and receive modules with integrated circuits coupled to main line with matched impedance values
06/01/2006DE10350595B4 Vorrichtung zur Echokompensation Apparatus for echo cancellation
06/01/2006CA2589212A1 Local coaxial cable wireless distribution network
06/01/2006CA2517284A1 Interference control in a broadband powerline communication system
05/2006
05/31/2006EP1661412A1 Apparatus and method for monitoring transmission systems using embedded test signals
05/31/2006EP1661275A2 System for crosstalk noise reduction on twisted pair, ethernet, polyphase and shielded wire systems