Patents for H04B 3 - Line transmission systems (31,523) |
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09/10/2009 | US20090225821 Methods and apparatus to detect an imbalanced subscriber line in a digital subscriber line (dsl) system |
09/10/2009 | US20090223463 Pet house |
09/09/2009 | EP2099138A2 Device for sharing a host with multiple users through power lines in a building |
09/09/2009 | CN201307854Y Remote power supply and communication signal co-cable transmission system |
09/09/2009 | CN101529820A Method and device for bus arbitration, converter and manufacturing installation |
09/09/2009 | CN101527605A Three-phase four-wire low-voltage synchronous attenuation device |
09/09/2009 | CN101527585A Device for achieving electric power system data self-adapting compression and method thereof |
09/09/2009 | CN101526572A Remote monitoring method and system of electric motor of oil extractor based on power-frequency communication of electric wires |
09/09/2009 | CN100539625C Power cutback configuration of digital line transceivers using public switched telephone net work signaling |
09/08/2009 | US7587511 Bandwidth monitoring method and its device |
09/08/2009 | US7587227 Directional wireless communication systems |
09/08/2009 | US7587055 Sound collection system |
09/08/2009 | US7587053 Audio-based position tracking |
09/08/2009 | US7587012 Dual loop clock recovery circuit |
09/08/2009 | US7586996 Method for controlling the power of the output signal from an amplifier system and the associated system |
09/08/2009 | US7586987 High speed data link with transmitter equalization and receiver equalization |
09/08/2009 | US7586837 Acquisition of a gated pilot signal |
09/08/2009 | CA2524606C Separable electrical connector component for sending and receiving communication signals through underground power distribution lines |
09/08/2009 | CA2306354C Apparatus and method for supervision |
09/03/2009 | WO2009108888A1 Feedback system and apparatus for video compensation |
09/03/2009 | WO2009108095A1 Test apparatus |
09/03/2009 | WO2009108062A1 Signal repeater system arrangement for stable data communication |
09/03/2009 | WO2009107750A1 Acoustic echo canceler |
09/03/2009 | US20090220104 Venue private network |
09/03/2009 | US20090220013 Low-cost connector apparatus and methods for use in high-speed data applications |
09/03/2009 | US20090219117 Plug-in device for signal correction |
09/03/2009 | DE102008011777A1 Bewertung frequenzabhängiger resonanzförmiger NEXT Kopplungen Review of frequency-dependent resonance NEXT shaped couplings |
09/03/2009 | DE102008011499A1 Consumption data e.g. consumed water quantity, transmitting method for e.g. office, involves holding consumption data from gateway for further transmission and/or automatically transmitting consumption data from data gateway over network |
09/03/2009 | CA2716483A1 Signal repeater system arrangement for stable data communication |
09/02/2009 | EP2096770A2 Evaluation of frequency-dependent resonant NEXT couplings |
09/02/2009 | EP2095637A1 System for displaying image and method for controlling the same |
09/02/2009 | EP2095555A1 Selecting carriers for modulating signals in a communication network |
09/02/2009 | EP2095526A1 Smart antenna for common channel incremental redundancy |
09/02/2009 | EP2095525A1 Method and arrangement for controlling adaptive filters |
09/02/2009 | EP1436908B1 Method and apparatus for varying the length of an adaptive equalizer based on doppler frequency |
09/02/2009 | EP1316134B1 Method, system and apparatuses for the transmission of data on electric network |
09/02/2009 | CN201303326Y DC wire carrier wave communication device |
09/02/2009 | CN101523836A Method and arrangement for power minimization in a multi-tone transmission-based communication system |
09/02/2009 | CN101523749A 电力线通信装置 Power line communication device |
09/02/2009 | CN100536510C Access audio frequency output through capturing service |
09/01/2009 | US7583901 Illuminative light communication device |
09/01/2009 | US7583768 Apparatus for canceling intersymbol interference in semiconductor memory device and method thereof |
09/01/2009 | US7583734 Two-wire type data communication method and system, controller and data recording apparatus |
09/01/2009 | US7583727 Single ended DMT test method for determining ADSL capability of cables |
09/01/2009 | US7583724 Low-power mixed-mode echo/crosstalk cancellation in wireline communications |
09/01/2009 | US7583703 System and method for power injection and out of band communications on shared medium |
09/01/2009 | US7583621 Method and apparatus for suppressing echo cancelling in a packet switched network |
09/01/2009 | US7583181 Supply line structure for supplying energy to electrical components of a motor vehicle |
09/01/2009 | US7583159 High power bipolar pulse generators with impedance transformation |
09/01/2009 | US7583091 Printed circuit board, and backplane data transmission method |
08/27/2009 | WO2009104801A1 Power line communication apparatus, power line communication system, and registration processing method |
08/27/2009 | US20090214051 Stackable communications system |
08/27/2009 | US20090214048 Harmonic distortion residual echo suppression |
08/27/2009 | US20090213941 Method and device for implementing data transmission |
08/27/2009 | US20090213845 Voice and data exchange over a packet based network with timing recovery |
08/27/2009 | US20090213779 Multi-hop wireless relay communication system and downlink data transmitting method and device |
08/27/2009 | US20090213275 Digital interface for tuner-demodulator communications |
08/27/2009 | DE19946749B4 Entscheidungsgegenkopplungsequalizer Decision feedback equalizer |
08/26/2009 | EP2093897A1 Device for canceling crosstalk, signal processing system and method for canceling crosstalk |
08/26/2009 | EP2093896A1 Method, device and signal processing system for remote crosstalk cancellation |
08/26/2009 | EP2092659A1 Method and arrangement for the adaptive filtering of signals |
08/26/2009 | EP1889084B1 Module for testing electromagnetic compatibility of a high-speed ethernet interface onboard an aircraft |
08/26/2009 | EP1869789A4 Wireless repeater with feedback suppression features |
08/26/2009 | EP1337925B1 Data bus |
08/26/2009 | CN201298845Y Isolator for powerline carrier |
08/26/2009 | CN201298754Y Integral 10kv carrier communication intelligent switch |
08/26/2009 | CN201298753Y 10kv carrier coupling power module |
08/26/2009 | CN201298440Y Measure and control integral 10kv carrier intelligent transformer |
08/26/2009 | CN101517913A Installation and method for operating an installation |
08/26/2009 | CN101515811A 信号处理装置 Signal processing means |
08/26/2009 | CN100534075C Adaptive equalizer with DC offset compensation |
08/26/2009 | CN100534001C Sound collecting method and sound collecting device |
08/25/2009 | US7580465 Low speed access to DRAM |
08/25/2009 | US7579715 Device and method for transmitting and providing the power of capacitive actuators |
08/25/2009 | US7579707 Discharge prevention circuit and electronic equipment provided with the discharge prevention circuit |
08/25/2009 | CA2401579C System and method for on-line monitoring and billing of power consumption |
08/20/2009 | WO2009102447A2 System and/or method for high-definition media distribution |
08/20/2009 | WO2009101597A2 Sensor network for liquid drainage systems |
08/20/2009 | WO2009101404A2 Signal and devices for wired networks |
08/20/2009 | US20090207955 Adaptive Digital Filter, FM Receiver, Signal Processing Method, and Program |
08/20/2009 | US20090207922 Power line communication apparatus, power line communication system, and registration processing method |
08/20/2009 | US20090207763 Voice switching for voice communication on computers |
08/20/2009 | US20090206962 Integrated front-end passive equalizer and method thereof |
08/20/2009 | CA2715158A1 Signal and devices for wired networks |
08/19/2009 | EP2091193A1 A signal processing system, chip, external card, filter device and signal processing method |
08/19/2009 | EP2090958A1 Power supply with data interface |
08/19/2009 | EP1700513B1 High-speed transmission system |
08/19/2009 | CN201294520Y Circuit transmit-receive tester for communication transmission system |
08/19/2009 | CN101512920A Network system with high availability |
08/19/2009 | CN101512919A Repeater having dual receiver or transmitter antenna configuration with adaptation for increased isolation |
08/19/2009 | CN101511144A LED automatic control system |
08/19/2009 | CN101511097A Wireless monitoring system based on high-voltage transmission line |
08/19/2009 | CN100531511C Printed circuit board with improved differential via |
08/19/2009 | CN100531275C Arrangement of an inductive coupler for power line communications |
08/19/2009 | CN100531274C Digital adaptive filter and acoustic echo canceller using the same |
08/19/2009 | CN100531243C Method and apparatus for echo cancellation |
08/19/2009 | CN100531165C Two-wire data communication method and system, controller and data recording equipment |
08/19/2009 | CN100531163C Equalizer, equalizing method and emitter |
08/19/2009 | CN100531000C Digital point-to-multiponit data transmission system on electric network |
08/19/2009 | CN100530999C Method and system of realizing remote control of ADSL modem |