Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
11/2013
11/27/2013CN203313179U Electrical energy collector failure detection device
11/27/2013CN203312572U Wall-type power socket
11/27/2013CN103414675A Single-user quick bit loading method for broadband power line OFDM system
11/27/2013CN103414673A Power line OFDM modulation method and device
11/27/2013CN103414496A Power line communication method, central control device, terminals and power line communication system
11/27/2013CN103414495A Signal modulation method of power line carrier communication
11/27/2013CN103414494A Signal frame generation method of power-line carrier communication system
11/27/2013CN103413421A Ward comprehensive information system based on broadband power line carrier, and communication method thereof
11/27/2013CN102244596B Active relay based on EOC
11/26/2013US8595278 Method and system for unconstrained frequency domain adaptive filtering
11/26/2013US8594340 Transmitter
11/26/2013US8594167 Determining spectral samples of a finite length sequence at non-uniformly spaced frequencies
11/26/2013US8594165 Half-symbol constellation display
11/26/2013US8594158 Base and repeater stations
11/26/2013US8593266 Power line communication system
11/26/2013US8591264 Modular outlet
11/26/2013CA2570691C Method and device for transmitting information through a power distribution network
11/26/2013CA2513998C Armoured flat cable signalling and instrument power acquisition
11/21/2013WO2013173135A1 Power over ethernet for bi-directional ethernet over single pair
11/21/2013WO2013052886A3 Two-wire communication system for high-speed data and power distribution
11/21/2013US20130307646 Adaptive Equalization of Impedance Mismatched Card-Edge Connections
11/20/2013EP2665196A1 Signal coupling apparatus for power line communication
11/20/2013EP2665195A1 Device for providing an intrinsically safe supply voltage and for transmitting communication signals
11/20/2013EP2665194A1 Method, device and system for processing signal based on twisted-pair cable
11/20/2013EP2664078A1 Header alignment in communication system
11/20/2013EP2664077A1 Method and system for communicating data over the power line
11/20/2013EP2664076A1 Crosstalk limitation between modems
11/20/2013EP2391066B1 Communication device for household electric appliances and monitoring system using said device
11/20/2013EP2180601B1 Enhanced echo cancellation
11/20/2013EP1936826B1 Noise management circuit for a remote terminal of a telecommunication system
11/20/2013EP1883866B1 Power line communications interface and surge protector
11/20/2013EP1829269B1 Method and system for virtual exchange reference impact (veri) for use in mixed spectrum management in dsl
11/20/2013CN203301481U Data relay station
11/20/2013CN203301479U Embedded power line carrier communication functional chip
11/20/2013CN203301478U Noise suppression circuit applied in power line channel strong-interference noise suppression device
11/20/2013CN203301477U Remote low-voltage high-speed carrier communication system
11/20/2013CN203301476U System and apparatus for conversion from optical fiber to electric line
11/20/2013CN203301475U Carrier communication unit
11/20/2013CN203301432U Rated level limiter applied in power line channel strong-interference noise suppression device
11/20/2013CN1871786B Facilities equipment communication circuit
11/20/2013CN103404041A Power line communication system, connector device, and power line communication device
11/20/2013CN103402708A Electrical switch
11/20/2013CN103401694A Method and system for realizing node management
11/20/2013CN103401589A Broadband communication system of 10kV distribution network
11/20/2013CN103401588A Low-voltage power line carrier three-phase coupling circuit
11/20/2013CN103401587A Data acquisition device and method based on power carrier-wave communication technology
11/20/2013CN103401586A Communication line fault detecting device and method
11/20/2013CN103401585A Rotary type step-by-step balancer and preparation technology thereof
11/20/2013CN103401584A Wired signal transmission system and method
11/20/2013CN102413616B Intelligent illumination system based on power line carrier communication technology
11/20/2013CN102355282B Method for crosstalk suppression in logout of subscriber in digital subscriber line system
11/20/2013CN102282036B Vehicle, communication system, and communication device
11/20/2013CN102223162B Combiner/divider, and method and system for covering mobile signals of elevator
11/20/2013CN101523749B 电力线通信装置 Power line communication device
11/19/2013US8588702 Method, equipment for submitting a measurement report
11/19/2013US8588582 System and method for on-demand storage of randomly selected data
11/19/2013US8588403 Echo canceling arrangement
11/19/2013US8588314 Communication device and method for detecting broadcast wave to be performed by communication device
11/19/2013US8588287 Method, device and system for detecting channel quality
11/19/2013US8588282 Transmitting/receiving device and signal transmitting apparatus
11/19/2013US8588279 Method and system for inter-PCB communication utilizing a spatial multi-link repeater
11/19/2013US8588073 Voice and data exchange over a packet based network
11/19/2013US8587417 Systems and methods for mapping message contents to virtual physical properties for vibrotactile messaging
11/19/2013US8587323 Method for diagnosing an electrical connection, and output assembly
11/14/2013WO2013167682A1 Apparatus for testing data communications on two wire combined power and data network systems for automation
11/14/2013WO2013166761A1 Echo elimination method and device
11/14/2013US20130301840 Methods for processing audio signals and circuit arrangements therefor
11/14/2013US20130301825 Selectively adaptable far-end echo cancellation in a packet voice system
11/14/2013US20130301824 Crosstalk cancellation device and method with improved vectoring stabilisation
11/14/2013US20130301745 Power over ethernet for bi-directional ethernet over single pair
11/14/2013DE102012009317A1 Vorrichtung und Verfahren zur Lokalisierung von PIM-Störstellen Device and method for localizing defects PIM
11/13/2013EP2512040B1 A computation saving echo canceller for a wide band audio signal
11/13/2013CN203289593U 2M link joint multifunctional adapter
11/13/2013CN203289589U A digital all-in-one machine
11/13/2013CN203289435U Bidirectional three-phase coupling circuit for low-voltage power line carrier communication
11/13/2013CN203289434U A power line carrier communication interface apparatus capable of preventing signal attenuation
11/13/2013CN203289433U Direct sequence spread spectrum communication-based carrier wave controller of coal cutters
11/13/2013CN203288072U Physical heritage monitoring system
11/13/2013CN103392298A 电力线通信系统 Power Line Communication Systems
11/13/2013CN103392262A Indoor broadcasting method and system
11/13/2013CN103391383A Wired data and voice remote transmission module and implementation method thereof
11/13/2013CN103391236A Network bridge device for power line and phone line
11/13/2013CN103391235A Power line and telephone line network bridge device
11/13/2013CN103391165A Data transmitting method, receiving method and corresponding device for power line carrier communication
11/13/2013CN103391135A Carbon fiber photoelectric composite conducting wire remote communication system
11/13/2013CN103391115A Power line carrier transmission apparatus and communication system
11/13/2013CN103390847A Network cable parting system and device
11/13/2013CN102271009B Balancing system
11/12/2013US8584170 System and method of internet group management for multicast push in passive access networks
11/12/2013US8583033 Oscillation protected amplifier with base station overload and noise floor protection
11/12/2013US8583032 Communication system, communication relay apparatus, and communication relay method
11/12/2013US8582789 Hearing enhancement systems
11/12/2013US8582781 Echo modulation methods and systems
11/12/2013US8582669 Noise reduction circuit in a digital isolator system
11/12/2013US8582668 Soft repetition code combiner using channel state information
11/12/2013US8582667 Transmitter for automatically detecting power-down of receiver and system including the same
11/12/2013US8582633 Confirmation of presence of narrowband interference by harmonic analysis
11/12/2013US8582632 Decoding a signal
11/12/2013US8582631 Managing communication operations of wireless devices
11/12/2013US8582577 Modem with voice processing capability
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