Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
04/2003
04/17/2003WO2003032515A1 Echo cancelling arrangement
04/17/2003US20030074500 Information processing system, information processing apparatus and method,recording medium, and program
04/17/2003US20030072439 System and method for implementation of an echo canceller
04/17/2003US20030072378 Spacial derivative bus encoder and decoder
04/17/2003US20030071721 Adaptive radiated emission control
04/17/2003US20030071719 Method and apparatus for attaching power line communications to customer premises
04/17/2003US20030071634 Tone generator and probe
04/16/2003EP1303094A2 Noise canceling method and apparatus
04/16/2003EP1302778A2 Device for measuring magnetic fields and manufacturing process thereof
04/16/2003EP1302038A1 Method and digital circuit for transmitting a plurality of bit sequences to be transmitted via several bus lines
04/16/2003EP1260072A4 Dsl repeater
04/16/2003EP1219097A4 Improved method for determining subscriber loop make-up
04/16/2003EP0870365B1 Gauging convergence of adaptive filters
04/16/2003CN2545757Y Integrative electric power line carrier communication combined device
04/16/2003CN2545756Y Induction coupler
04/16/2003CN1411634A Receiver for multiuser detection of CDMA signals
04/16/2003CN1411258A Method of automatic frequency conversion transmitting data
04/16/2003CN1106098C Device and method for converting data transfer rate in communication of digital audio/video data
04/16/2003CN1106094C Method for interference suppression using adaptive equalization in spread spectrum communication system
04/15/2003US6549627 Generating calibration signals for an adaptive beamformer
04/15/2003US6549587 Voice and data exchange over a packet based network with timing recovery
04/15/2003US6549352 Signal processing apparatus utilizing a partial response method, and signal processing method, information recording apparatus, and information reproduction apparatus therefore
04/15/2003US6549120 Device for sending and receiving data through power distribution transformers
04/15/2003US6549087 Variable equalizer with independently controlled branches based on different frequency breakpoints
04/15/2003US6549067 Method and apparatus for linearizing an output signal
04/10/2003WO2003030398A1 Hybrid circuit and power line convey modem using the same
04/10/2003WO2003030397A1 Method for reducing the radiation of signals inserted into energy supply lines
04/10/2003WO2003030396A2 Method for operating a transmission system and transmission system in an energy supply network
04/10/2003WO2003030395A2 Method for managing and operating communication networks through energy supply networks
04/10/2003WO2003030394A1 Method for synchronising transmission systems for energy supply networks
04/10/2003WO2003030393A2 Method and transmission device for recognizing the transmit mode of transmission devices connected to power supply lines
04/10/2003WO2003030392A1 Method and device for detecting and locating a symmetry defect on a telephone line
04/10/2003US20030068033 Telecommunications gateway and method
04/10/2003US20030067910 Voice conferencing over a power line
04/10/2003US20030067888 Seamless redundant echo canceller replacement in a multi-channel echo canceller
04/10/2003US20030067306 Apparatus for high voltage testing of insulated conductors and oscillator circuit for use with same
04/09/2003EP1301018A1 Apparatus and method for modifying a digital signal in the coded domain
04/09/2003EP1300965A1 Coupling apparatus for powerline transmission system with low bit rate
04/09/2003EP1300964A1 A system and method for measuring crosstalk in XDSL networks
04/09/2003EP0853844B1 Echo cancelling system for digital telephony applications
04/09/2003CN2544471Y Being controlled cable communication automatic controller for watchtower
04/09/2003CN1409524A Complex circuit safety digital frequency mixing system
04/09/2003CN1409511A Self adaptive stube equalizer
04/09/2003CN1409496A Method for electric power line carrier communication
04/09/2003CN1409495A 分析传感器 Analytical Sensors
04/08/2003US6546494 Providing power to a device over a network transmission medium
04/08/2003US6546235 System for cancelling distortion in an electronic circuit
04/08/2003US6546100 Load coil device
04/08/2003US6546099 Arrangement for suppressing an interfering component of an input signal
04/08/2003US6546057 Suppression of radio frequency interference and impulse noise in communications channels
04/08/2003US6546041 Radio transmission method and apparatus for digital information
04/08/2003US6545622 Low power analog equalizer with current mode digital to analog converter
04/08/2003US6545483 Analyzer sensor
04/07/2003WO2002035727A1 System identifying method
04/03/2003WO2003028305A2 Method and supply line structure for transmitting data between electrical automotive components
04/03/2003WO2003028246A2 Method and apparatus for varying the length of an adaptive equalizer based on doppler frequency
04/03/2003WO2003028242A1 Charging device for mobile terminals with integrated powerline modem
04/03/2003WO2003028241A2 Crosstalk equalization for digital transmission lines
04/03/2003WO2003028227A1 Power line communication circuit
04/03/2003WO2002005451A9 Modular power line network adapter
04/03/2003US20030066088 Bidirectional trunk amplifier and cable modem for cable hybrid fiber and coax network which utilizes an upstream pilot signal
04/03/2003US20030065507 Network unit and a method for modifying a digital signal in the coded domain
04/03/2003US20030063680 Per-bin DFE for advanced OQAM-based multi-carrier wireless data transmission systems
04/03/2003US20030063577 Echo cancellation with dynamic latency adjustment
04/03/2003US20030063566 Identifying and synchronizing permuted channels in a parallel channel bit error rate tester
04/03/2003US20030063478 Coupling device for a low-rate carrier current transmission system
04/03/2003US20030062991 Power transfer apparatus for concurrently transmitting data and power over data wires
04/03/2003US20030062990 Powerline bridge apparatus
04/03/2003CA2432688A1 Power line communication circuit
04/02/2003EP1298830A2 Identifying and synchronizing permuted channels in a parallel bit error rate tester
04/02/2003EP1298815A2 Echo processor generating pseudo background noise with high naturalness
04/02/2003EP1297669A1 Viterbi equalization using precalculated metrics increments
04/02/2003EP1297668A1 Viterbi equalizer using various hardware data paths for acs and transmission metric operations
04/02/2003EP1166477A4 Apparatus, and associated method, for selectively modifying characteristics of the receive signal received at a receiving station
04/02/2003EP0894364B1 Radio frequency noise canceller
04/02/2003CN2543283Y Winding box with emergency charging and universal serial-port bus
04/01/2003US6542611 Multi-state echo suppressor
04/01/2003US6542604 Scaled impedance replica for echo attenuation in digital transmission systems
04/01/2003US6542562 Approximated MMSE-based channel estimator in a mobile communication system
04/01/2003US6542477 Digitally-tunable echo-cancelling analog front end for wireline communications devices
04/01/2003US6542003 Circuit configuration and method for directly electrically isolated broadband transmission
03/2003
03/27/2003WO2003026350A2 Audio distributor
03/27/2003WO2003026236A2 Adaptive equalizer which is independent of the amplitude of the transmited signal
03/27/2003WO2003026186A2 Subnet of power line communication network, method for setting up the same, electronic appliance connected to the same, and communication module used in electronic appliance
03/27/2003WO2003026185A2 Method for joining node into subnet of power line communication network, electronic appliance connected to subnet, and communication module used in electronic appliance
03/27/2003WO2003026184A2 Method for detecting and regulating identifier overlap on power line communication network, electronic appliance connected to subnet of power line communication network, and communication module used in electronic appliance
03/27/2003WO2003026160A2 Single ended line probing in dsl system
03/27/2003WO2002097555A3 Network control system for home appliances
03/27/2003WO2002021718A3 Network echo canceller for integrated telecommunications processing
03/27/2003US20030059036 Method and apparatus for outbound wave subtraction using a variable offset amplifier
03/27/2003US20030058895 Methmethod for detecting connection polarity of network transmission lines and associated detection circuit
03/27/2003US20030058803 Crosstalk equalization for input-output driver circuits
03/27/2003US20030058431 Time domain reflectometer with wideband dual balanced duplexer line coupling circuit
03/27/2003US20030058085 Power transfer apparatus for concurrently transmitting data and power over data wires
03/27/2003US20030057932 Method for detecting connection polarity of network transmission lines and associated detection circuit
03/27/2003US20030057771 Supply line structure for supplying energy to electrical components of a motor vehicle
03/27/2003CA2460988A1 Adaptive equalizer which is independent of the amplitude of the transmited signal
03/26/2003EP1296470A2 Optical transmission systems using optical amplifiers and wavelength division multiplexing
03/26/2003EP1295448A1 Channel equalizer
03/26/2003EP1295406A1 Echo suppression using adaptive gain based on residual echo energy
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