Patents
Patents for H04B 3 - Line transmission systems (31,523)
11/2011
11/08/2011US8054872 Method and apparatus for signal carrier-to-noise power density ratio calculation
11/08/2011US8054780 Transparent application data notification during IMS registrations
11/08/2011US8054174 Referee's wireless horn indicator system having sensor alerts
11/03/2011WO2011136591A2 Indoor direct current power system and power line communication method thereof
11/03/2011WO2011135053A1 Impairements identification module and method
11/03/2011WO2011134936A1 Method and devices for detecting electromagnetic interference on data transmission lines
11/03/2011WO2011134927A1 Method and device for clustering lines of a wireline network in a number of virtual binders
11/03/2011WO2011081478A3 Magnetic induction communication system for on-line electric vehicle and demodulation apparatus and demodulation method of magnetic induction communication system
11/03/2011US20110268300 Tactile-based guidance system
11/03/2011US20110268287 Loudspeaker system and sound emission and collection method
11/03/2011US20110268286 Method, apparatus, and system for mass audio notification field
11/03/2011US20110268161 Repeating for low-overhead communication in a network
11/03/2011US20110267151 Rf safe transformer-coupled transmission line for mri with reduced artifacts
11/02/2011EP2383993A1 Bi-directional device
11/02/2011EP2383903A1 Method and system for remote updates of meters for metering the consumption of electricity, water or gas
11/02/2011EP2383902A1 Multi-wideband communications over power lines
11/02/2011EP2383901A1 Wireless network devices configurable via powerline communications networks
11/02/2011EP2383900A1 Impairments identification module and method
11/02/2011EP2383899A1 A method for determining a noise level on a data transmission line, and associated devices
11/02/2011EP2383898A1 Method and device for clustering lines of a wireline network in a number of virtual binders
11/02/2011EP2383897A1 Binder topology identification for a telecommunication network
11/02/2011EP2383896A1 Methods and devices for detecting electromagnetic interference on data transmission lines
11/02/2011EP2383865A2 Bicycle electrical system
11/02/2011EP2382919A1 Glucose meter communication method and system
11/02/2011EP2382717A2 Methods and apparatuses for data transmission
11/02/2011EP2382684A1 Equalizer with a variable transfer curve
11/02/2011EP2067270B1 Electrical circuit
11/02/2011CN202026514U Electric carrier wave intelligent lighting device
11/02/2011CN202026307U Mixed communication system for power line patrol of unmanned aircraft
11/02/2011CN102232271A Method for transmission line analysis
11/02/2011CN101197593B Signal processing device, system and crosstalk counteracting method
11/01/2011US8050645 Active resistive summer for a transformer hybrid
11/01/2011US8050622 Method and system for detecting messages using enhanced distributed signaling
11/01/2011US8050620 Wireless station, wireless transmission method for the wireless station, and wireless transmission system using the wireless station
11/01/2011US8050619 Radio communication apparatus and radio communication method
11/01/2011US8050618 Apparatus and method for transmission and reception in multiple input multiple output system with relay station
11/01/2011US8050311 Method and arrangement for improved relaying
11/01/2011US8050276 Signal handling for wireless clients
11/01/2011US8050212 Opportunistic use of wireless network stations as repeaters
11/01/2011US8049573 Bidirectional multiplexed RF isolator
10/2011
10/30/2011CA2738532A1 Configuring cable lines to provide data and power
10/28/2011CA2738404A1 Apparatus for detecting imbalances in a paired line
10/27/2011WO2011133619A2 Coexistence of prime, s-fsk and g3 devices in powerline communications
10/27/2011WO2011133075A1 An echo canceller and a method thereof
10/27/2011WO2011103079A3 Multi-vessel communication system
10/27/2011US20110263198 Radio communication system, base station, relay station, and mobile station
10/27/2011US20110261874 Communication Over Power Lines
10/26/2011EP2381586A1 Spread spectrum meter reading system utilizing low speed frequency hopping
10/26/2011EP2380316A1 Communication method and communication device
10/26/2011EP2380282A1 System and method for digital subscriber loop crosstalk cancellation
10/26/2011EP2380281A1 Communication between transmitter and receiver
10/26/2011EP1850498B1 Method and system for extending signal transmission distance in asymmetric digital subscriber line
10/26/2011EP1805907B1 Impedance monitoring system and method
10/26/2011EP1582001B1 Device for data exchange between a transmitter and a receiver
10/26/2011CN202019361U Leaky coaxial cable performance test system of simulated tunnel
10/26/2011CN202019353U Power line based wall plug type communication device
10/26/2011CN102227878A Transmission method taking echo into account
10/26/2011CN102227877A Method and system for management of transmission resources in digital communication systems
10/26/2011CN102227090A Intelligent FA (feeder automation) system of 10kV-carrier communication
10/26/2011CN101487864B Production detection system used for mobile terminal antenna
10/26/2011CN101252373B Local terminal equipment, signal separator and communicating system
10/26/2011CN101145804B An implementation method of multi-function single board in network management device
10/25/2011US8046484 Transmitting data across a contention channel in a centralized network
10/25/2011US8046042 Signal processing apparatus
10/25/2011US8046041 Signal processing apparatus
10/25/2011US8045946 Active resistive summer for a transformer hybrid
10/25/2011US8045917 System and method for detection of mobile operating through a repeater
10/25/2011US8045728 Conference audio system
10/25/2011US8045703 Apparatus and method for echo-cancellation
10/25/2011US8045626 Differential transmitter, differential receiver, signal transmitter, and signal transmitting system
10/25/2011US8045605 Jitter amplifier circuit, signal generation circuit, semiconductor chip, and test apparatus
10/25/2011US8045604 Estimation of log-likelihood using constrained markov-chain monte carlo simulation
10/25/2011US8045602 Transceiver apparatus and method having ethernet-over-power and power-over-ethernet capability
10/25/2011US8045492 Dynamic establishment of virtual circuits using multi-segment pseudowires
10/25/2011US8045491 Signal handling for wireless clients
10/25/2011US8044747 Capacitor coupled Ethernet
10/20/2011WO2011129104A1 Impedance stabilization device
10/20/2011WO2011129071A1 Control device, communication terminal, control method, communication control method, and integrated circuit
10/20/2011WO2011128956A1 Interface device
10/20/2011US20110256899 Autonomous Electromagnetic Emissions Reduction For Sensitivity Improvement
10/20/2011US20110256857 Systems and Methods for Improving Antenna Isolation Using Signal Cancellation
10/20/2011US20110255708 Wireless conformal antenna system and method of operation
10/20/2011US20110255707 System, audio guidance output control method, transmission device, and reception device
10/20/2011US20110255703 Determining an acoustic coupling between a far-end talker signal and a combined signal
10/20/2011US20110255702 Signal dereverberation using environment information
10/20/2011US20110255611 Powered Patch Panel
10/20/2011US20110255583 Electrical pulse data transmission using a look-up table
10/20/2011US20110254670 Method and apparatus for processing virtual world
10/20/2011US20110254366 Data transmission device
10/20/2011DE102010015103A1 Verfahren zum Orten von fehlerhaften Stellen in einem HF-Signalübertragungspfad A method for locating flaws in a HF signal transmission path
10/20/2011DE102010015102A1 Verfahren zum Orten von fehlerhaften Stellen in einem HF-Signalübertragungspfad A method for locating flaws in a HF signal transmission path
10/19/2011EP2376931A2 Method and network analyser for measuring group runtime in a measuring object
10/19/2011EP1895673B1 Device for the inductive coupling of a data-transmission unit to a phase of an electrical power line and corresponding production method
10/19/2011CN202011700U Wired carrier communication connection system of rubber-tired crane
10/19/2011CN1871750B Modular outlet
10/19/2011CN102224717A Activating method for newly adding line pair into xdsl system,apparatus thereof and xdsl system
10/19/2011CN102223276A IP (Internet Protocol) networking method applied to narrowband power line carrier communication
10/19/2011CN102223162A Combiner/divider, and method and system for covering mobile signals of elevator
10/19/2011CN102223161A Medium-voltage carrier system of power distribution network
10/19/2011CN102223160A Power line carrier communication transmitting circuit
1 ... 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 ... 316