Patents
Patents for H04B 3 - Line transmission systems (31,523)
02/2010
02/25/2010CA2734792A1 Arrangement and method for communicating audio and dc signals
02/24/2010EP2157704A1 Device for determining a common-mode signal in a power line communication network
02/24/2010EP2156626A2 Compensating transmit/receive crosstalk over a capacitive barrier of an isolating interface with a differentiating circuit
02/24/2010CN201411293Y Urgency annunciator of elevator
02/24/2010CN201410970Y 64D semi-automatic blocking signal transmission and conversion device
02/24/2010CN101656808A An echo canceler circuit and method
02/24/2010CN101656555A ADSL2+ access system and velocity pre-estimating method thereof
02/24/2010CN100592730C Hybrid-type data transmission apparatus and method for high performance wireless LAN
02/24/2010CN100592652C Signal transmission circuit
02/23/2010US7668324 Folding electronic device
02/23/2010US7668318 Distributed stereo system
02/23/2010US7668235 Jitter measurement algorithm using locally in-order strobes
02/23/2010US7668234 Test signal generating apparatus for communications equipment and test signal generating method for communications equipment
02/23/2010US7668122 Communication apparatus using a transmission medium and method for the same
02/23/2010US7667344 Coupling communications signals to underground power lines
02/18/2010WO2010018562A1 TECHNIQUE FOR NOISE MITIGATION IN xDSL LINES
02/18/2010WO2010017854A1 Method for detecting an ingress of a short-wave radio signal in a power line communication system and power line communication modem
02/18/2010US20100042865 Physical Coding Sublayer for a Multi-Pair Gigabit Transceiver
02/18/2010US20100040204 Performance Testing of Echo Cancellers Using a White Noise Test Signal
02/18/2010US20100039923 Method and System for Crosstalk Cancellation
02/18/2010US20100039245 Vibratory assembly for a vehicle
02/17/2010EP2154790A1 Power line communication device and power line communication method
02/17/2010EP2154789A1 Method for detecting an ingress of a short-wave radio signal in a power line communication system and power line communication modem
02/17/2010EP2153595A2 Distributed scheduling
02/17/2010EP2153537A1 Method and device for crosstalk evaluation and communication system comprising such device
02/17/2010EP2153536A1 Method and device for data processing and communication system comprising such device
02/17/2010EP2153535A1 Method and device for processing a channel and communication system comprising such device
02/17/2010CN201409143Y Conversion device for Ethernet coaxial cables
02/17/2010CN201409131Y Independent miniature modular structure device for carrier communication for coal cutter
02/17/2010CN201409130Y Power line communication carrier equipment
02/17/2010CN201408419Y Marine field controller bus signal collecting device
02/17/2010CN101652933A Arrangements in a digital subscriber line system
02/17/2010CN101652932A Equalizer characteristic optimization method, transmission system, communication device, and program
02/17/2010CN101651472A Carrier wave communication device of power line and carrier wave communication method thereof
02/17/2010CN101651471A Method for estimating crosstalk coefficient in digital subscriber line system and device thereof
02/17/2010CN101651470A Communication apparatus, transmission line communication chip and communication method
02/16/2010US7664459 On-board message repeater for railroad train communications system
02/16/2010US7664458 Wireless communication system that performs diversity combining of radio signals from mobile terminal received through plurality of relay stations
02/16/2010US7664254 System and method for upstream power backoff for xDSL
02/16/2010US7664143 Communications system using adaptive baseband injected pilot carrier symbols and related method
02/16/2010US7664117 Last leg utility grid high-speed data communication network having virtual local area network functionality
02/16/2010US7664060 Information terminal and information terminal system
02/11/2010WO2010017180A1 A bi-directional repeater with a single local oscillator and frequency synthesizer
02/11/2010WO2010015948A1 Method for pseudo-differential transmission using natural electrical variables
02/11/2010WO2010015947A1 Method for pseudo-differential transmission using modal electrical variables
02/11/2010US20100034374 Vectored digital subscriber line system having modular vectoring arrangements
02/11/2010US20100034298 Rail vehicle internal information network device
02/11/2010US20100034297 Communication apparatus, transmission line communication chip and communication method
02/11/2010US20100034094 Access terminal capability update
02/11/2010DE102008029842A1 Method for defining test points in telecommunication network, involves selecting route with least frequency from route list, and defining nodes of node groups as test points when all routes in network are utilized
02/10/2010EP2151966A1 Apparatus and method for transforming and transmitting signal
02/10/2010EP1855398B1 Illumination light communication device
02/10/2010CN101647207A Power line communication system
02/09/2010US7660425 Acoustic echo cancellation
02/09/2010US7660395 Communication channel capacity estimation
02/09/2010US7660350 High-speed multi-mode receiver
02/09/2010US7660349 Transmit equalizer compensation for probe receivers
02/09/2010US7660345 Transceiver apparatus and method having ethernet-over-power and power-over-ethernet capability
02/09/2010US7659793 Antenna device including a high frequency circuit, a reactance circuit and first and second ground sections
02/09/2010CA2279802C Reduced cost automatic meter reading system and method using locally communicating utility meters
02/04/2010US20100029208 Host apparatus for supporting bluetooth and method therefor
02/04/2010US20100029199 Integral high frequency communication apparatus
02/04/2010US20100027586 Pll circuit, communication device, and loopback test method of communication device
02/04/2010US20100026911 Transmission device, transmission system, transmission method, and computer program product
02/04/2010US20100026087 Power line communication apparatus
02/04/2010US20100026086 Two-wire addressing scheme
02/04/2010DE112007003130T5 Adaptive Gleichtaktentzerrung Adaptive common mode equalization
02/03/2010EP2149200A1 Multi-wideband communications over multiple mediums within a network
02/03/2010EP2149199A1 Multi-wideband communications over multiple mediums
02/03/2010CN101640551A Method, device and system for detecting radio frequency interference
02/03/2010CN100588127C Switch port, power communication integral local network and its network combining method
02/02/2010US7657418 Modern testing system and method
02/02/2010US7657039 Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same
02/02/2010US7656956 Data, power and supervisory signaling over twisted pairs
02/02/2010US7656955 Device for improving the transmission properties of a bundle of electrical data lines and a system for transmitting data
02/02/2010US7656954 Single-ended tri-level encoding/decoding
02/02/2010US7656939 Adaptive equalizer with passive and active stages
02/02/2010US7656938 Demodulator for a multi-pair gigabit transceiver
02/02/2010US7656827 Apparatus for, and method of, reducing noise in a communications system
02/02/2010US7656285 Method and apparatus for communicating the existence of an emergency situation without uniquely identifying the source of the communication
02/02/2010US7656277 Apparatus for detecting the presence of fog for automotive vehicle
01/2010
01/28/2010WO2010010216A1 Multi-band data transmission method
01/28/2010WO2009152188A8 Vectored dsl crosstalk cancellation
01/28/2010WO2009149429A3 Robust wideband symbol and frame synchronizer for power-line communication
01/28/2010US20100023989 Relay device, relay method, and program
01/28/2010US20100022282 Echo Canceler Circuit and Method
01/28/2010US20100020863 Determination of receive data values
01/28/2010US20100020859 Signal transmission apparatus and signal transmission control method
01/28/2010US20100019890 Haptic Device Gravity Compensation
01/27/2010CN201393220Y Novel long-distance 40G QSFP communication active copper-cable component
01/27/2010CN101636926A Signal transmission method, transmission and/or reception circuit and apparatus
01/27/2010CN101636925A System and method for combining signals on a differential I/O link
01/27/2010CN100586037C Method of high frequency network communications transmitted over various lines
01/27/2010CN100585658C CAN bus data collector
01/26/2010US7653843 Method and arrangement to estimate transmission channel characteristics
01/26/2010US7653536 Voice and data exchange over a packet based network with voice detection
01/26/2010US7653348 Satellite communications systems, components and methods for operating shared satellite gateways
01/26/2010US7653124 Monitoring differential phase-shifted keying demodulation
01/26/2010US7653015 Local area network of serial intelligent cells
01/26/2010US7653012 Relay transmission of data in a centralized network