Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
08/2012
08/22/2012CN102647205A Communication echo elimination device and method
08/22/2012CN101943754B Active ultrasonic probe circuit capable of transmitting signals with twin wire
08/22/2012CN101916092B Switching value controller, interactive terminal and intelligent home control system and method
08/22/2012CN101540627B Receiving device comprising impedance control circuit and semiconductor device
08/22/2012CN101447807B High-efficient two-wire system power modulation bus and implementing method thereof
08/22/2012CN101414852B Output coupling and filter circuit for power line carrier communication
08/22/2012CN101348205B Control apparatus and refit method of elevator
08/22/2012CN101039132B Method of distributing gid in PLC network, method of receiving gid in PLC network, apparatus for authorization in PLC network, and PLC device
08/21/2012US8249656 Wireless communicator jacket with multiple operational stages
08/21/2012US8249448 System and method of blocking an electrical signal transmission
08/21/2012US8249269 Sound collecting device, sound collecting method, and collecting program, and integrated circuit
08/21/2012US8249268 Woofer-less and enclosure-less loudspeaker system
08/21/2012US8249176 Method for determination of bridged taps on a transmission line
08/21/2012US8249175 Communication device, multi carrier transmission system, communication method, and recording medium
08/21/2012US8249137 In-situ jitter tolerance testing for serial input output
08/21/2012US8249136 Adaptive frequency selective baseband communications method using orthogonal codes
08/21/2012US8248974 All-digital timing control for multi-channel full-duplex transceiver
08/21/2012US8248971 Vehicle network system
08/21/2012US8248218 Handwriting electronic input system
08/21/2012US8248217 Tactile display apparatus and method thereof
08/21/2012US8248205 External door handle, in particular for vehicles
08/16/2012WO2012109336A1 Channel selection in power line communications
08/16/2012WO2012108421A1 Digital signal processing device
08/16/2012WO2012106865A1 Method and device for generating expanded channels
08/16/2012WO2012078785A3 Carrier sense multiple access (csma) protocols for power line communications (plc)
08/16/2012US20120207315 Audio processing apparatus and method of controlling the audio processing apparatus
08/16/2012US20120206246 Sound to haptic effect conversion system using amplitude value
08/15/2012EP2487804A1 Method and system for transferring information about the production type of electric energy
08/15/2012EP2487803A1 Train network data communication system using power line and method thereof
08/15/2012EP2487109A1 Seat rail coupling
08/15/2012EP2486707A2 Apparatus and method for controlling communications to and from utility service points
08/15/2012EP2347521B1 Avionic system comprising a controller and at least one peripheral that are linked by a line mutualized for power and data
08/15/2012EP2324476B1 Multiple microphone switching and configuration
08/15/2012EP1497916B1 Decision feedback equalizer
08/15/2012CN202385094U Guide rail type power broadband modem
08/15/2012CN202385093U Electrified education system with power-line broadband network
08/15/2012CN202385092U Power communication platform integrating packet transport network (PTN) and Ethernet passive optical network (EPON)
08/15/2012CN202385091U Testing device of modem
08/15/2012CN202385090U Carrier type wire communication device
08/15/2012CN102638806A Plug-and-play wireless network extension base station and automatically setting method thereof
08/15/2012CN102638291A Power carrier communication system of overhead line
08/15/2012CN101795119B Common-mode signal suppression circuit and switch
08/15/2012CN101304266B Digital low-voltage electric power line length subsection-setting transmission integrated information system
08/15/2012CN101212238B Signal distribution inductor
08/15/2012CN101142756B Connection board and communications jack with compensation for differential to differential and differential to common mode crosstalk
08/14/2012US8244173 RF repeater
08/14/2012US8243949 Network addressible loudspeaker and audio play
08/14/2012US8243948 Selector and amplifier device therefor
08/14/2012US8243947 Image apparatus and method for transmitting audio data
08/14/2012US8243918 Outlet add-on module
08/14/2012US8243780 Test device and method of detecting an imbalance in a power level of a digital channel
08/14/2012US8243635 Information processing apparatus
08/14/2012US8242785 System and method for detecting anomalies along telecommunication lines
08/09/2012WO2012105880A1 Estimation and suppression of harmonic loudspeaker nonlinearities
08/09/2012WO2012104828A1 A method and apparatus for hierarchical adaptive filtering
08/09/2012WO2012104619A1 Communications on power systems
08/09/2012WO2012103826A2 Line driving method and device
08/09/2012WO2012072233A3 Electrical switch
08/09/2012US20120204213 Wireless theater system
08/09/2012US20120202419 Repeater system for strong signal environments
08/09/2012US20120201370 Time-domain acoustic echo control
08/09/2012US20120201312 Power line communication apparatus including ac power socket
08/09/2012US20120198908 Electronic device with flexible data and power interface
08/09/2012DE102011003842A1 Verfahren und System zur Übermittlung von Informationen über die Erzeugungsart von elektrischer Energie Method and system for communicating information on the type of production of electrical energy
08/08/2012EP2485406A1 Power line communication apparatus including ac power socket
08/08/2012EP2485405A1 Direct current power line communication system and direct current power line communication apparatus
08/08/2012EP2484019A2 Method for the data transmission from an emitter to a receiver in an ac voltage network and data transmission device for ac voltage networks
08/08/2012EP1897353B1 Method and device for determining a leak resistance for at least one wire of a subscriber connection line comprising several wires in a communications network
08/08/2012CN202374282U Novel household heavy and weak current distribution network system
08/08/2012CN202372845U Device for achieving changing-over control of automatic channels of dam monitoring instrument line centralizing box
08/08/2012CN102629882A Power carrier communication system of cable shielding layer
08/08/2012CN102629881A Power line communication apparatus including AC power socket
08/08/2012CN102629880A Testing method of medium-voltage carrier communication system
08/08/2012CN101453245B Method, equipment and system for eliminating DSL crosstalk
08/08/2012CN101436880B Method and apparatus for sending and receiving signal, and signal transmission system
08/07/2012US8238815 Wireless relay device
08/07/2012US8238814 Multi-beam communication satellite antenna with failure compensation
08/07/2012US8238813 Computationally efficient design for broadcast satellite single wire and/or direct demod interface
08/07/2012US8238812 Apparatus and method for collaborative hybrid automatic repeat request (HARQ) in broadband wireless communication using relay station
08/07/2012US8238547 Sound pickup apparatus and echo cancellation processing method
08/07/2012US8238546 Echo canceler circuit and method
08/07/2012US8238451 Network transmitting apparatus and power saving method thereof
08/07/2012US8238450 Dynamic transmitter noise level adjustment for digital subscriber line systems
08/07/2012US8238412 Multicarrier modulation messaging for power level per subchannel information
08/07/2012US8238226 OFDM communication apparatus
08/07/2012US8237552 Method and apparatus for controlling input/output interface
08/07/2012US8237516 Enhanced substrate using metamaterials
08/07/2012US8235755 Modular outlet
08/02/2012WO2012102917A1 Method and device for the precompensation and postcompensation of crosstalk in a dsl mimo system
08/02/2012WO2012102258A1 Decision feedback equalizer
08/02/2012WO2012102089A1 Reception device
08/02/2012WO2012101386A1 Method and device for transmitting a signal using a transmission power mask
08/02/2012WO2012101382A2 Weighting filter, and corresponding methods and devices for transmitting and receiving an analog signal and computer program
08/02/2012WO2012100812A1 Indoor broadcasting method and system
08/02/2012WO2012076987A3 Method and apparatus for alignment in neighboring networks
08/02/2012WO2012075496A3 Routing protocols for power line communications
08/02/2012US20120198094 System and method for multi-link communication in home network
08/02/2012US20120195438 Echo suppression for wireless handsets and headsets
08/02/2012US20120195385 Communications on power systems
08/02/2012US20120195384 Power line communication apparatus and noise detection method thereof
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