Patents for H04B 3 - Line transmission systems (31,523) |
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03/04/2014 | US8665062 Method and system for communicating access authorization requests based on user personal identification as well as method and system for determining access authorizations |
02/27/2014 | US20140057551 Method, system and apparatus for service loss handling |
02/27/2014 | US20140056423 Echo cancellation apparatus, echo cancellation method and communications apparatus |
02/27/2014 | US20140056369 Control Traffic Overhead Reduction during Network Setup in PLC Networks |
02/27/2014 | US20140056340 Power line communications device transmitting at differing power levels in same communication |
02/27/2014 | US20140056339 Method and trancvier for digital subscriber line system |
02/27/2014 | US20140055680 Method and apparatus for automatic compensation of signal losses from transmission over conductors |
02/27/2014 | US20140055250 Methods and systems for controlling devices via power lines |
02/27/2014 | US20140055208 Resonator, multilayer board and electronic device |
02/26/2014 | EP2701373A1 Method, apparatus and system for supporting non-vectored line |
02/26/2014 | EP2700175A1 Amplitude control in a variable load environment |
02/26/2014 | CN203457151U Power line communication system |
02/26/2014 | CN203457150U Carrier wave failure analyzer |
02/26/2014 | CN103609032A Point-to-multi-point transmission over wired loop plant |
02/26/2014 | CN103607344A PLC-based intelligent household gateway apparatus |
02/26/2014 | CN103607224A Method for building two-way link of power-line carrier communication system |
02/26/2014 | CN103607223A Embedded type broadband power line carrier communication system based on OFDM modulation |
02/26/2014 | CN103607222A Self-learning method for cross-frequency-band power line communication frequency |
02/26/2014 | CN103607221A Power line spread spectrum communication equipment |
02/26/2014 | CN103607220A Monitoring device having electric power communication function |
02/26/2014 | CN103607219A Noise prediction method for power line communication system |
02/26/2014 | CN103607218A Cross-frequency-band power-line carrier communication system and communication method thereof |
02/26/2014 | CN102377453B Method and device for controlling updating of self-adaptive filter and echo canceller |
02/26/2014 | CN102201837B Communication node and procedure for various means of transmission |
02/26/2014 | CN102171970B Base station and client device |
02/25/2014 | US8660820 Distortion cancellation using adaptive linearization |
02/25/2014 | US8660531 Access to locked functions |
02/25/2014 | US8660477 Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input |
02/25/2014 | US8660212 Interference classification with minimal or incomplete information |
02/25/2014 | US8660170 Apparatus and method for calibrating the I/Q mismatch in a quadrature bandpass sampling receiver |
02/25/2014 | US8660168 Method and system for communicating via a spatial multilink repeater |
02/25/2014 | US8660055 Pseudo hub-and-spoke wireless audio network |
02/25/2014 | US8660042 Connecting various wireless terminals over power lines |
02/25/2014 | US8659402 Varible operation sensation input device |
02/25/2014 | US8659365 Common mode noise suppression circuit |
02/20/2014 | WO2014028705A1 Robust handshake procedure in cross-talk environments |
02/20/2014 | WO2014028135A1 Methods and systems for exchanging information between aircraft |
02/20/2014 | WO2014027434A1 Multiple access communication system, and solar power generation system |
02/20/2014 | US20140050315 High-speed in-memory qr decomposition using fast plane rotations |
02/20/2014 | US20140050273 Robust handshake procedure in cross-talk environments |
02/20/2014 | US20140049336 Signal splitter |
02/20/2014 | US20140049099 Methods and systems for exchanging information between aircraft |
02/20/2014 | DE102012220846B3 Verfahren zur Topologieerkennung in einem Niederspannungsnetz A method for topology discovery in a low voltage network |
02/20/2014 | DE102012106679A1 Signal preparation unit for preparing differential signals with signal strength, has voltage barrier, which is designed such that each conductor is connected with threshold voltage source by branch line |
02/19/2014 | EP2697984A1 Bidirectional communication system, and method for compensating for undesired feedback in the bidirectional communication system |
02/19/2014 | EP2697909A1 Dynamic target margin adaptation for dsl transmission lines |
02/19/2014 | CN203445873U Multiphase power line carrier communication apparatus |
02/19/2014 | CN203445666U Broadband carrier communication technology-based electric vehicle intelligent charging integrated machine |
02/19/2014 | CN103595674A Modulation-demodulation system of voice signal transmitted through mechanical carrier |
02/19/2014 | CN103595596A An Internet of Things household electrical appliance interconnection system based on PLC |
02/19/2014 | CN103595447A Device for carrying out network communication based on high-speed LVDS signals |
02/19/2014 | CN103595446A Digital transmission method based on alternating current power line |
02/19/2014 | CN103595445A Gain control method and gain control device for demodulation signals and microcontroller |
02/19/2014 | CN103592459A Wind speed monitoring device |
02/19/2014 | CN102487299B Method and device for simulating noise of power line carrier channel |
02/19/2014 | CN102215191B Ethernet over coax (EOC) multimode multiband composite transmission equipment |
02/19/2014 | CN101542928B Distributed antenna communications system and methods of implementing thereof |
02/18/2014 | US8655269 Mobile wireless communication system including radio relay transmission function |
02/18/2014 | US8655268 Relay station and radio communication system |
02/18/2014 | US8655267 Adaptive range extender for extending a range of a cellular network by amplifying uplink and downlink cellular signals |
02/18/2014 | US8654988 Synchronization of signals for multiple data sinks |
02/18/2014 | US8654931 Communication channel capacity estimation |
02/18/2014 | US8654866 Method and apparatus for optimizing dynamic range in DMT modems |
02/18/2014 | US8654865 Device and system for preserving, transmitting and receiving HDMI or A/V signals along a power-line communication network |
02/18/2014 | US8654828 Mechanism for the measurement of DC properties of a signal path |
02/18/2014 | US8654827 Estimation of low-amplitude echoes in a received communication signal |
02/18/2014 | US8654826 Multi-stage phase estimation method and apparatus |
02/18/2014 | US8654825 Backoff adaptation for digital communication systems with channel quality information |
02/18/2014 | US8654794 Radio communication method and a base station and user terminal thereof |
02/18/2014 | US8654689 Advanced signal processors for interference cancellation in baseband receivers |
02/18/2014 | US8654377 Data communication device, communication control method, and program |
02/18/2014 | CA2603867C Network interface device with a remote power source |
02/13/2014 | WO2014025532A2 Micro otdr within data transceiver |
02/13/2014 | US20140047489 Methods for ingress mitigation in cable communication systems involving repair, replacement and/or adjustment of infrastructure elements |
02/13/2014 | US20140044247 Method for performing spectrum management in a subscriber premises network |
02/13/2014 | US20140044200 Power supply control device, method of controlling the same, and power supply control system |
02/13/2014 | US20140043954 Systems and methods for implementing energy-efficient ethernet communications |
02/13/2014 | DE102006041454B4 Verfahren zur Identifikation von Nebensprechen in der Telekommunikation A method for the identification of crosstalk in the telecommunications |
02/12/2014 | EP2696596A1 Dsl activation method, device, system and program product |
02/12/2014 | EP2696512A1 System for coupling a power line communication device to a power line network |
02/12/2014 | EP2696511A1 High Bandwidth equalizer and limiting amplifier |
02/12/2014 | EP2695308A2 Shielding flaw detection and measurement in quadrature amplitude modulated cable telecommunications environment |
02/12/2014 | EP2694986A1 Transmission line parameter determination |
02/12/2014 | CN203435002U Novel practical low-voltage transformer area switch instrument |
02/12/2014 | CN103583032A Resource efficient acoustic echo cancellation in IP networks |
02/12/2014 | CN103581925A Method and system for data transmission |
02/12/2014 | CN103581450A 节能方法及装置 Method and apparatus for energy conservation |
02/12/2014 | CN103581084A Modulation-demodulation method for mechanical carrier wave voice signals |
02/12/2014 | CN103581010A Point-to-point data transmission method of low-voltage power line carrier |
02/12/2014 | CN103580965A Local area internet of things |
02/12/2014 | CN103580925A Method for achieving N-2 anti-accident measure type power communication network |
02/12/2014 | CN103580725A Power transmission micropower distribution system |
02/12/2014 | CN103580724A Power line transmission circuit used for elevator communication |
02/12/2014 | CN102265469B Wireless transceiver within electrical receptacle system |
02/11/2014 | US8649731 Base station apparatus, relay station apparatus, and communication system |
02/11/2014 | US8649730 Wireless data transport apparatus and wireless data transport system |
02/11/2014 | US8649685 Light receiving device and light receiving method |
02/11/2014 | US8649523 Methods and systems using a compensation signal to reduce audio decoding errors at block boundaries |
02/11/2014 | US8649444 TWACS pulse inductor reversal circuit |
02/11/2014 | US8649418 Enhancement of the channel propagation matrix order and rank for a wireless channel |