Patents
Patents for H04B 3 - Line transmission systems (31,523)
05/2003
05/14/2003EP1145024B1 Dynamic register with iddq testing capability
05/14/2003EP0965176A4 Full duplex communication circuit with a transducer for simultaneously generating audio output and receiving audio input
05/14/2003CN2550966Y Power line transmission loud speaker box device
05/14/2003CN2550854Y Far end control signal processor for electric equipment
05/14/2003CN1417958A Control device and method for automatic household system
05/13/2003US6563931 Auditory prosthesis for adaptively filtering selected auditory component by user activation and method for doing same
05/13/2003US6563925 Method and apparatus for space-time echo cancellation
05/13/2003US6563892 Method and system for detection of binary information in the presence of slowly varying disturbances
05/13/2003US6563870 Nonlinear echo compensator
05/13/2003US6563868 Method and apparatus for adaptive equalization in the presence of large multipath echoes
05/13/2003US6563864 Residential power cutback for splitterless DSL operation
05/13/2003US6563863 Computer modem
05/13/2003US6563841 Per-bin adaptive equalization in windowed DMT-type modem receiver
05/13/2003US6563802 Echo cancellation with dynamic latency adjustment
05/13/2003US6563801 Cable interface for data and power supply
05/13/2003US6563613 Optical subscriber network, and delay measurement method
05/13/2003US6563420 Power line communications apparatus and method
05/13/2003US6563333 Dynamic register with IDDQ testing capability
05/13/2003US6563236 Feed line switching circuit and branching unit
05/08/2003WO2003039115A2 Device and method for carrying out multichannel acoustic echo cancellation with a variable number of channels
05/08/2003WO2003039089A1 Zf-based adaptive asynchronous receiver
05/08/2003WO2003039022A1 Powerline communication system
05/08/2003WO2002063813A3 CROSSTALK IDENTIFICATION IN xDSL SYSTEMS
05/08/2003US20030088706 System and method for simultaneously transporting different types of information over a power line
05/08/2003US20030086515 Channel adaptive equalization precoding system and method
05/08/2003US20030086382 Coefficient domain history storage of voice processing systems
05/08/2003US20030086362 Joint reduction of NEXT and FEXT in xDSL systems
05/08/2003US20030085795 Apparatus and method of controlling activation of home automation system
05/08/2003US20030085771 Methods for transmitting a waveform having a controllable attenuation and propagation velocity
05/08/2003CA2465540A1 Powerline communication system
05/07/2003EP1309114A2 Equalization of optical signals
05/07/2003EP1309099A1 Telecommunication system with improved downlink quality feedback
05/07/2003EP1309098A1 Coupling device with integrated plug contact
05/07/2003EP1309097A1 Transmission line loss testing method, slave station using the method, master station, and communication system
05/07/2003EP1307973A2 Systems and methods for characterizing transmission lines in a multi-carrier dsl environment
05/07/2003CN1416639A Improved system and method for implementation of echo canceller
05/07/2003CN1416621A PCM modem adaptation system utilizing silence period
05/07/2003CN1416620A Method and appts. for control of modem transmit power
05/07/2003CN1108082C Adaptively precompensating audio system
05/07/2003CN1108018C Rapid-update adaptive channel-equilization filtering for digital radio receivers
05/07/2003CN1108013C Modulation recording method, reproducing method and appts. thereof, recording and reproducing method and appts.
05/06/2003US6560332 Methods and apparatus for improving echo suppression in bi-directional communications systems
05/06/2003US6559757 Data communication over power lines
05/06/2003CA2194887C Vehicle power supply for a bus coupler without a transformer
05/02/2003EP1306981A1 Echo canceling method and device for multiplex line
05/02/2003EP1305733A1 Data link for multi protocol facility distributed communication hub
05/02/2003EP1151553B1 Approximated mmse-based channel estimator in a mobile communication system
05/02/2003EP0758507B1 System and method for start up of a two wire modem
05/02/2003EP0607304B1 Multiple access telephone extension systems and methods
05/01/2003WO2003036932A1 Coupling between power line and customer in power line communication system
05/01/2003WO2003036877A2 Method for controlling a plurality of units networked to give a network, and network comprising a plurality of networked units
05/01/2003US20030084385 Method and apparatus for evaluating and optimizing a signaling system
05/01/2003US20030084079 Method and apparatus for providing an error characterization estimate of an impulse response derived using least squares
05/01/2003US20030083017 Telecommunication system with improved downlink quality feedback
05/01/2003US20030081763 Efficient echo channel, estimation mechanism for an ADSL echo canceller
05/01/2003US20030081704 Error recovery apparatus of digital broadcasting receiver to compensate a phase-error generated by a broadcasting signal transmitted through a multi-path channel
05/01/2003US20030081663 Interface circuit of differential signaling system
05/01/2003US20030081291 Equalization of optical signals
05/01/2003CA2409917A1 Error recovery apparatus of digital broadcasting receiver to compensate a phase-error generated by a broadcasting signal transmitted through a multi-path channel
04/2003
04/30/2003DE10150226C1 Anordnung zum Anschluss einer Powerline-Datenübertragungseinrichtung oder eines Zwischenverstärkers an ein Spannungsführendes Niederspannungs-Stromnetz Arrangement for connecting a power line data transmission device or a repeater to a voltage-leading low-voltage power grid
04/30/2003CN2548367Y Digital language learning system
04/29/2003US6556677 Single-ended echo cancellation system and method
04/29/2003US6556589 Network transceiver for steering network data to selected paths based on determined link speeds
04/29/2003CA2197383C Method and apparatus for providing print job buffering for a printer on a fast data path
04/24/2003WO2003034698A2 Method for regulating a modelling filter
04/24/2003WO2003034673A2 Apparatus and method for constraining the value of feedback filter tap coefficients in a decision feedback equalizer
04/24/2003WO2003034608A2 Arrangement for connecting a powerline data transmission device or a repeater in a live low-voltage mains network
04/24/2003WO2003009083A3 Dual purpose power line modem
04/24/2003WO2002065737A3 System and method for fault isolation for dsl loop extenders
04/24/2003WO2002048837A3 System and method for device co-location discrimination
04/24/2003WO2002039613A3 Method for determining setting parameters of a receiving unit
04/24/2003WO2002003146A3 Interface device with stored data on transmission lines characteristics
04/24/2003US20030078990 Remote control method for controlling electrical appliance via home gateway
04/24/2003US20030078025 Method and apparatus for varying the length of an adaptive equalizer based on doppler frequency
04/24/2003US20030076950 Method and system for filtering a signal and for providing echo cancellation
04/24/2003US20030076949 Echo canceller employing dual-H architecture having improved non-linear echo path detection
04/24/2003US20030076948 Echo canceler compensating for amplifier saturation and echo amplification
04/24/2003US20030076947 Echo processor generating pseudo background noise with high naturalness
04/24/2003US20030076930 ADSL loop qualification systems and methods
04/24/2003US20030076844 Method and system for filtering a signal and providing echo cancellation using an adaptive length filter
04/23/2003EP1304843A2 Peak suppression method and data transmission apparatus
04/23/2003EP1304837A1 Logical coupler in a telecommunication network
04/23/2003EP1304005A1 Method for the assembly of a mobile radio network base station and connection of the base station to the network
04/23/2003EP1303920A2 Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
04/23/2003EP0852890B1 Providing services in a telecommunications network
04/23/2003CN2547070Y Communication processing apparatus
04/23/2003CN1413408A 非接触信号分析器 Non-contact signal analyzer
04/23/2003CN1413405A Baseband processor with look-ahead parameter estimation capabilities
04/23/2003CN1413404A DMT bit distribution with incomplete TEQ
04/23/2003CN1413323A Method of linking authorized users to plurality of devices
04/23/2003CN1412958A Self-adaptive echo bucking device capable of automatically compensating delay and making double-end detection
04/23/2003CN1106748C Apparatus and method for providing telephone user with control of threshold volume at which user's voice will take control
04/23/2003CN1106747C Echo-eliminating device
04/23/2003CN1106716C Data decording apparatus
04/22/2003US6553098 Apparatus and method for assessing leakage from cable networks
04/22/2003US6553085 Means and method for increasing performance of interference-suppression based receivers
04/22/2003US6553082 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation
04/22/2003US6553076 Mixed mode transceiver digital control network and collision-free communication method
04/22/2003US6553075 Method and apparatus for determining crosstalk
04/17/2003WO2003032652A2 Method and apparatus for evaluating and optimizing a signaling system