Patents
Patents for H04B 3 - Line transmission systems (31,523)
12/2009
12/23/2009WO2009153826A1 Video capture system, in particular for fishing.
12/23/2009WO2009153283A1 Method and device for data processing and communication system comprising such device
12/23/2009WO2009152992A1 Device and associated method for crosstalk estimation
12/23/2009WO2009152704A1 Method, equipment and system for channel estimation
12/23/2009EP2136491A1 System and method for boosting and monitoring
12/23/2009EP2136477A1 Device and associated method for crosstalk estimation
12/23/2009EP2136476A1 Method and device for data processing and communication system comprising such device
12/23/2009EP2136420A1 Magnetic coupler element and magnetic coupling type isolator
12/23/2009EP2135391A1 Back channel communication
12/23/2009CN201369722Y Interphone for elevator
12/23/2009CN201369721Y Signal composite transmission system
12/23/2009CN201369720Y Master-slave-type DC carrier communication system
12/23/2009CN101611560A Method and arrangement for controlling adaptive filters
12/23/2009CN101610103A Method, device and system for estimating channel
12/23/2009CN101610102A Method, system and device for optimizing power
12/23/2009CN100574297C Waveform distortion correction circuit for cascade digital communication equipment and correction method thereof
12/23/2009CN100574154C Converter of multiplex transmission system and method for transmitting alarm
12/23/2009CN100574132C Device for power line carrier communications
12/22/2009US7636436 Method for the performance testing of echo cancellers using an artificial segmented test signal
12/22/2009US7636388 Channel fault detection for channel diagnostic systems
12/22/2009US7636387 Measuring apparatus and measuring method
12/17/2009WO2009152188A2 Vectored dsl crosstalk cancellation
12/17/2009WO2009151153A1 Synchronization point detection method and power line communication apparatus
12/17/2009WO2009151062A1 Acoustic echo canceller and acoustic echo cancel method
12/17/2009WO2009150662A1 Method and architecture for pairing guard band frequencies for effecting gsm, cdma, umts & wcdma services
12/17/2009WO2009150224A1 Power line communication system
12/17/2009WO2009150157A1 System for transmitting an electrical signal, in particular frequency-related and radiation measurement device equipped with such a system
12/17/2009WO2009149737A1 Method for reducing a disturbance in an input signal caused by an output signal in a multi-port connector, multi-port connector, and mobile device
12/17/2009US20090310976 Illuminative light communication system
12/17/2009US20090310794 Audio conference apparatus and audio conference system
12/17/2009US20090310755 Systems and methods for performing loop analysis based on un-calibrated single-ended line testing
12/17/2009US20090310688 Synchronization point detection method and power line communication apparatus
12/17/2009US20090310662 Receiving system
12/17/2009CA2727621A1 System for transmitting an electrical signal, in particular frequency-related, and radiation measurement device equipped with such a system
12/16/2009CN201365240Y Mobile power-line network communication device
12/16/2009CN201364703Y Display system combined with power line transmission signals
12/16/2009CN101605080A Socket, data network, wiring device and method for isolating fault in the device
12/16/2009CN101605035A Modem and impedance setting method thereof
12/16/2009CN101604986A Master in master-slave communication system and bus current detection method thereof
12/16/2009CN101604677A Return loss techniques in wirebond packages for high-speed data communications
12/16/2009CN101604161A Bit synchronization decoding method
12/16/2009CN100571225C Time delay estimation for equalisation
12/16/2009CN100571055C Multiple user communication method of distribution network
12/15/2009US7634371 System and method for analyzing jitter of signals
12/15/2009US7634035 Phase comparison circuit and clock recovery circuit
12/15/2009US7634001 Dynamic regulation of power consumption of a high-speed communication system
12/15/2009US7634000 Noise estimator for a communications system
12/15/2009US7633964 Communication apparatus, communication system and communication method
12/15/2009US7633925 Bandwidth management of virtual networks on a shared network
12/10/2009WO2009149429A2 Robust wideband symbol and frame synchronizer for power-line communication
12/10/2009WO2009149425A1 Jammer canceller for power-line communication
12/10/2009WO2009149420A1 Blind channel quality estimator
12/10/2009WO2009149415A1 System and method for applying multi-tone ofdm based communications within a prescribed frequency range
12/10/2009WO2009148049A1 Acoustic echo canceller and acoustic echo cancel method
12/10/2009WO2009147267A1 Wireless device for remotely checking vital signs and movement, including a two-way voice system
12/10/2009US20090307540 System and method for applying multi-tone ofdm based communications within a prescribed frequency range
12/10/2009US20090305628 Method of obtaining single wire transmission line
12/10/2009US20090304198 Audio signal decorrelator, multi channel audio signal processor, audio signal processor, method for deriving an output audio signal from an input audio signal and computer program
12/10/2009US20090304197 Distributed audio signal processing system having virtual channels
12/10/2009US20090304092 Low offset input circuit and transmission system with the input circuit
12/10/2009US20090304060 Probing and Estimation of cross-coupling
12/10/2009US20090304052 System and method for making busses limited to a linear topology extensible to other topologies
12/10/2009US20090303031 Alerting device with supervision
12/10/2009CA2727034A1 Intelligent power system and methods for its application
12/09/2009EP2131506A1 Communication system, communication device, communication terminal, and communication setting method
12/09/2009EP2131505A1 Power line communication system and power line communication device
12/09/2009EP2131504A1 Echo cancellation balance using noise generator and average power detection
12/09/2009EP2131286A1 Method for limiting the current injected on a micro-controller tab
12/09/2009EP2130298A2 Methods and systems for reducing acoustic echoes in multichannel audio-communication systems
12/09/2009CN201359765Y Signal coupling circuit of bidirectional power line
12/09/2009CN101601195A Arrangement and method relating to digital subscribe lines
12/09/2009CN101600030A Digital adaptive filter and filtering method thereof
12/09/2009CN101599782A Relay coupling technology applied to Homeplug
12/09/2009CN101599781A ZIGBEE transfer power line carrier wave gateway technology
12/09/2009CN101599780A Passive equalizer capable of improving gain by using negative impedance
12/09/2009CN101599779A Intermediate-frequency signal loss compensating circuit
12/09/2009CN100568859C Method and apparatus for varying the length of an adaptive equalizer based on Doppler frequency
12/08/2009US7630501 System and method for calibration of an acoustic system
12/08/2009US7630446 Apparatus and method for automatic polarity swap in a communications system
12/08/2009US7630434 High-speed decoder for a multi-pair gigabit transceiver
12/03/2009WO2009145887A1 Systems and methods of rf power transmission, modulation, and amplification
12/03/2009WO2009145040A1 Communication device, communication system, wire harness, and communication method
12/03/2009WO2009144556A1 Echo cancellation for dvb repeaters
12/03/2009WO2009143940A1 Communication process for elements composing a home or industrial electrical energy distribution network and devices for implementing the same
12/03/2009WO2009125080A3 Low-voltage control interface coupler for a multi-pulse emitter
12/03/2009WO2009123404A4 In-building communication-relay system using power-line communication and method thereof
12/03/2009US20090298430 Directional communication systems
12/03/2009US20090297167 Illuminative light communication device and lighting device
12/03/2009US20090297166 Illuminative light communication device
12/03/2009US20090297157 Emergency lamp and wireless emergency lamp data transmission system
12/03/2009US20090297156 Illuminative light communication system, lighting device and illuminative light source
12/03/2009US20090296954 Method and apparatus to direct sound
12/03/2009US20090296953 Communication system and control method therefor, program, and storage medium
12/03/2009US20090296830 Signal receiver for receiving differential signal via transmission line
12/03/2009US20090296791 Multi-Pair Gigabit Ethernet Transceiver
12/03/2009US20090296610 Voice packet dynamic echo cancellation system
12/03/2009DE102009022578A1 Signalempfänger zum Empfangen eines Differenzsignals über eine Übertragungsleitung Signal receiver for receiving a differential signal over a transmission line
12/02/2009EP2129020A1 Transmission method, transmission system, transmission device, and reception device
12/02/2009EP2129001A1 Communication system and control method therefor, program and storage medium
12/02/2009EP2127330A1 Multi-stage differential warping amplifier and method