Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
06/2012
06/14/2012WO2012052504A3 Electrical device for a powerline system for data transmission and powerline system for data transmission
06/14/2012WO2011056233A8 High speed communication
06/14/2012US20120149997 Signal processing apparatus
06/14/2012US20120149300 Portable radio-frequency repeater
06/14/2012US20120148266 Digital coherent optical receiver, adaptive equalizer, and digital coherent optical communication method
06/14/2012US20120148065 Active load isolator and wireless speaker for mixed signal environments
06/14/2012US20120148064 Audio on-demand communication system
06/14/2012US20120148059 Controlling Audio Signals
06/14/2012US20120148052 System, Method, and Apparatus for Conveying a Signal to One or More Devices
06/14/2012DE202012004412U1 Netzübertragungssystem mit Steuerung, Leitung und Empfänger Power transmission system with control line and receiver
06/14/2012DE102011000238A1 Netzwerkkommunikationsknoten und Datenübertragungsverfahren dafür zur Verwendung in einem PLC-(Datenübertragung über Stromleitung)Netzwerk Network communication nodes and data transmission method thereof for use in a PLC (data transmission via power line) network
06/14/2012DE102010062670A1 Maintenance unit for bus line in actuator sensor interface bus system, has processing unit operated in monitor mode in which interface telegrams are detected and in communication mode in which processing unit communicates with master unit
06/14/2012DE102010053614A1 Übertragungsvorrichtung Transfer device
06/13/2012EP2464069A2 Digital coherent optical receiver, adaptive equalizer, and digital coherent optical communication method
06/13/2012EP2464027A1 Power line communication device, power supply circuit with communication function, electrical appliance, and control-monitoring system
06/13/2012EP2464026A1 Time-Alignment of Crosstalk Acquisition Phases between Multiple Joining Lines
06/13/2012EP2462702A2 Apparatus and method for transmitting and receiving time broadcasting information using power line
06/13/2012EP1495538B1 Equalizer mode switch
06/13/2012EP1188285B1 Gateway with voice
06/13/2012CN102497294A Method and system for testing power line carrier route
06/13/2012CN102497259A Subcarrier allocation method and device applied to power line communication
06/13/2012CN102497220A Calling system based on flexible alternating current signal technology and communication method for calling system
06/13/2012CN102497219A System and method for power line communications
06/13/2012CN101651472B Carrier wave communication device of power line and carrier wave communication method thereof
06/13/2012CN101320997B Power line communications system
06/13/2012CN101213766B Data transmission
06/12/2012US8201045 System and method for trellis decoding in a multi-pair transceiver system
06/12/2012US8199937 Contents reproduction apparatus and method thereof
06/12/2012US8199927 Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
06/12/2012US8199925 Loudspeaker array audio signal supply apparatus
06/12/2012US8199922 Ethernet isolator for microphonics security and method thereof
06/12/2012US8199921 Sound field controlling device
06/12/2012US8199799 Method of monitoring circuit quality and circuit therefor
06/12/2012US8199794 Method, apparatus and system for channel estimation in two-way relaying networks
06/12/2012US8199778 Radio communication system, base station and random access channel transmission method thereof
06/12/2012US8199680 Correlating calls after a referral
06/12/2012US8199667 Voice and data exchange over a packet based network
06/12/2012US8198999 Power line communication system and method of operating the same
06/12/2012US8198989 Method and apparatus for informing a user of the position of an information source relative to the user position
06/12/2012US8198953 Two-dimensional left-handed metamaterial
06/12/2012US8198951 Capacitive isolation circuitry
06/12/2012CA2545551C Anti-howling structure
06/07/2012WO2012075496A2 Routing protocols for power line communications
06/07/2012WO2012073608A1 Electrical appliance
06/07/2012WO2012072455A1 Crosstalk emulator for xdsl cable
06/07/2012WO2012051497A3 Dsl alien noise reduction
06/07/2012WO2012018288A3 Method in a communication system
06/07/2012WO2011138611A3 Cable network device
06/07/2012US20120140944 Audio signal processing unit and audio transmission system, in particular a microphone system
06/07/2012US20120140939 Method and device for cancelling acoustic echo
06/07/2012US20120140806 Complex adaptive phase discriminator
06/07/2012US20120140805 Complex adaptive phase estimation
06/07/2012US20120140685 Simplified adaptive filter algorithm for the cancellation of tx-induced even order intermodulation products
06/07/2012US20120139669 Integrated front-end passive equalizer and method thereof
06/07/2012US20120139657 Communication system
06/07/2012US20120139656 Magnetic field system and method for mitigating passive intermodulation distortion
06/06/2012EP2461488A1 Monitor/control device and monitor target device
06/06/2012EP2461170A1 Physical fault domain determination module and method
06/06/2012EP2460364A1 Module for managing lampposts and services, and telemanagement system comprising at least one such module
06/06/2012EP2459408A2 Charging apparatus and vehicle
06/06/2012CN102487299A Method and device for simulating noise of power line carrier channel
06/06/2012CN101282141B Method, apparatus and system for transmitting and receiving data
06/05/2012US8195088 Method and apparatus pertaining to wireless communications systems
06/05/2012US8194878 Dual streaming with exchange of FEC streams by audio sinks
06/05/2012US8194877 Audio processing apparatus
06/05/2012US8194876 Sound transmission system
06/05/2012US8194863 Speaker system
06/05/2012US8194723 Test apparatus for 64B/66B encoding process
06/05/2012US8194637 Method and apparatus for achieving system acquisition and other signaling purposes using the preamble in an OFDM based communications system
06/05/2012US8194601 Method for transmitting and receiving signals using multi-band radio frequencies
05/2012
05/31/2012US20120134684 Adaptive equalizer, optical receiver, and tap coefficient correcting method
05/31/2012US20120134436 Combined Channel Coding and Space-Time Block Coding in a Multi-Antenna Arrangement
05/31/2012US20120134428 Method and system for synchronizing a network using existing network cables
05/31/2012US20120134395 Power Line Communications (PLC) Across Different Voltage Domains Using Multiple Frequency Subbands
05/31/2012US20120134393 Telecommunication Signaling Using Nonlinear Functions
05/31/2012US20120133494 Systems and Methods for Providing Programmable Deformable Surfaces
05/31/2012US20120133459 Passive filter and ac coupler receiver interface
05/31/2012US20120133453 Circuit for Reducing Electromagnetic Interference Noise
05/31/2012DE102010052663A1 Übertragungssystem zur Übertragung von Datentelegrammen über eine Lastleitung Transmission system for transmitting data messages via a load line
05/31/2012DE102010052662A1 Datentelegramm-Generierungsverfahren zur Ansteuerung mindestens eines Lastmoduls bzw. einer Lampe über eine Lastleitung Data message generation method for controlling at least one load module or a lamp through a load line
05/30/2012EP2458946A1 Communication system for controlling electrical loads
05/30/2012EP2458772A2 Method and system for synchronizing a network using existing network cables
05/30/2012EP2458742A1 Crosstalk emulator for xDSL cable
05/30/2012EP2457353A1 Improved packet detector
05/30/2012EP2457333A2 Method and apparatus for vectored data communication
05/30/2012EP2180609B1 Remote monitoring of an optical transmission system using line monitoring signals
05/30/2012CN202261280U Broadband carrier communication system for distribution network in small town
05/30/2012CN202261279U Carrier broadband networking system used on ship power line
05/30/2012CN202261278U Power frequency communication system networked in distribution transformer district
05/30/2012CN202261277U Power frequency communication system of single feeder line distributed network
05/30/2012CN202261276U Power line carrier transmission system
05/30/2012CN202261275U Data transmission circuit for increasing return loss of HD-SDI (high definition serial digital interface)
05/30/2012CN202261274U System utilizing traveling cable to transmit network data and signal processing devices
05/30/2012CN202261273U Communication transmission module
05/30/2012CN202261272U Multifunctional EOC (Ethernet over Coax) terminal
05/30/2012CN202261271U Coverage system for long-wave standard time electric wave dead zone
05/30/2012CN202259964U Intelligent socket
05/30/2012CN202256645U Multi-channel carrier collection on-site tester
05/30/2012CN1922799B Communication apparatus and communication method
05/30/2012CN102484504A Transmitter and method for applying multi-tone OFDM based communications within a lower frequency range
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