Patents
Patents for H04B 3 - Line transmission systems (31,523)
07/2011
07/06/2011CN102118184A Device and method for power line carrier communication
07/06/2011CN102118183A Power carrier communication method and device
07/06/2011CN102118182A Broadband power control method, broadband power control system and local terminal equipment
07/06/2011CN102116419A LED (light emitting diode) system and method for communication of LED system power line carrier waves
07/06/2011CN101361312B Clock data restoring device
07/06/2011CN101268624B Method and test signal for measuring speech intelligibility
07/05/2011US7974348 Two-wire serial handshaking communication interface and method thereof
07/05/2011US7974227 Relayed signal communications
06/2011
06/30/2011WO2011077430A1 Dsm cross-talk cancellation technique for xdsl lines
06/30/2011WO2011076191A1 Method for determining notching parameters and plc system
06/30/2011WO2011076190A1 Method for determining notching parameters in a plc system and plc system
06/30/2011WO2011056434A3 Outdoor unit installation and feature
06/30/2011US20110158441 Wireless speaker units with improved battery life
06/30/2011US20110158424 Self-powered audio speaker having modular components
06/30/2011US20110158418 Dereverberation and noise reduction method for microphone array and apparatus using the same
06/30/2011US20110158329 System and method for bi-phase modulation decoding
06/30/2011US20110158306 Signal analyzer and methods for displaying constellations
06/30/2011US20110158303 Wake-up control system and method for controlling receiver wake-up
06/30/2011US20110158294 Wireless relay apparatus and wireless relay method
06/30/2011US20110158293 Noise and channel estimation using low spreading factors
06/30/2011US20110156477 Audio system adapters for audio signal distribution using electrical extension cables
06/30/2011DE102010055556A1 Verfahren zum Bestimmen von Notching-Parametern und PLC-System A method for determining notching parameters and PLC system
06/29/2011EP1323246B1 Power line networking apparatus and method
06/29/2011CN201887883U Device for simultaneously transmitting analogue video and network signals
06/29/2011CN201887797U Intelligent auto-recognition conversion module for communication protocol and communication method
06/29/2011CN201887764U Narrow-band low-voltage power line carrier communication module based on 270 kHz FSK
06/29/2011CN201887763U Impedance test device for low voltage electric power carrier channel
06/29/2011CN201887762U Comprehensive tester for coaxial cables
06/29/2011CN1770971B Method of reducing electromagnetic interference and circuit connection device using the same
06/29/2011CN102113260A Block interleaving scheme with configurable size for achieving time and frequency diversity
06/29/2011CN102113233A System and method for applying multi-tone OFDM based communications within a prescribed frequency range
06/29/2011CN102113232A Robust wideband symbol and frame synchronizer for power-line communication
06/29/2011CN102113231A Blind channel quality estimator
06/29/2011CN102111513A Industrial on-site telephone network of alternating current/ direct current power line based on OFDM (Orthogonal Frequency Division Multiplexing) technology and communication method thereof
06/29/2011CN102111242A Method for reducing narrowband noise interference in power line carrier communication
06/29/2011CN102111226A Method for constructing coaxial cable channel model
06/29/2011CN102111189A Long-distance high-speed broadband power line communication method
06/29/2011CN102111188A Asymmetric power-line carrier communication system
06/29/2011CN102111187A Power line carrier communication module
06/29/2011CN102111186A Signal processing method for bound digital subscriber line channels, and device and system adopting same
06/28/2011US7970152 Method and device for matching the phases of microphone signals of a directional microphone of a hearing aid
06/28/2011US7970124 Adaptive gain control based on echo canceller performance information
06/28/2011US7969917 Local area network of serial intelligent cells
06/28/2011US7969702 Intelligent power supply and cable system
06/28/2011US7969288 Force feedback system including multi-tasking graphical host environment and interface device
06/28/2011US7969287 Haptic effect control system
06/28/2011US7969256 Signal transmission circuit and signal transmission system with reduced reflection
06/23/2011WO2011074095A1 Information transmission device of vehicle and electrically-driven vehicle provided with the same
06/23/2011WO2011073184A2 Active eye opener for current-source driven, high-speed serial links
06/23/2011US20110150248 Automatic environmental acoustics identification
06/23/2011US20110150235 Audio Control Using a Wireless Home Entertainment Hub
06/23/2011US20110150106 System and Method for Bi-Phase Modulation Decoding
06/23/2011US20110150105 Communication apparatus, integrated circuit, and communication method
06/23/2011US20110150104 Communication apparatus, integrated circuit, and communication method
06/23/2011US20110150056 Method and apparatus for coaxial cable based broadcast and communication convergence in home network
06/23/2011US20110150048 Telecommunication Signaling Using Nonlinear Functions
06/23/2011US20110149815 Method and apparatus for providing echo cancellation in a network
06/23/2011US20110148666 User interface passive haptic feedback system
06/23/2011US20110148607 System,device and method for providing haptic technology
06/23/2011US20110148541 Transmission medium
06/22/2011EP2337371A1 DSL system
06/22/2011EP2337283A1 Communication device and communication method
06/22/2011EP1952548B1 Method and apparatus for improving call quality
06/22/2011DE112009001289T5 Kommunikationsvorrichtung, Kommunikationssystem, Kabelbaum und Kommunikationsverfahren Communication device, communication system, communication method and harness
06/22/2011DE10010784B4 Verfahren und Vorrichtung zum Erfassen von Nutzkanalunterbrechungen bei ISDN-Verbindungen Method and apparatus for detecting Nutzkanalunterbrechungen ISDN connections
06/22/2011CN201878187U OFDM (orthogonal frequency division multiplexing) high-speed logging telemetry system with echo canceling function
06/22/2011CN201878169U Switch for switching between twisted pair signals and coaxial signals
06/22/2011CN201878140U Low-voltage power line carrier communication module
06/22/2011CN201878139U Low voltage power line carrier communication module
06/22/2011CN1716989B System and method of upstream signal power cutback
06/22/2011CN1659780B Decision feedback equalizer
06/22/2011CN102106095A Compensating conductive circuit
06/22/2011CN102105802A Transformer meter and system for using same
06/22/2011CN102104399A System for ensuring power line carrier communications between energy meter gateways and white information appliances
06/22/2011CN102104398A System and method of resource allocation for cancellation of crosstalk
06/22/2011CN101634411B Escape indicator light and escape indicating system
06/22/2011CN101212247B Hub, signal combining method and RTWP calculation method
06/22/2011CN101166041B Radio-frequency far end distributed system in radio communication system
06/21/2011US7966438 Two-wire communications bus system
06/21/2011US7965977 Remote antenna system
06/21/2011US7965764 Simultaneous physical and protocol layer analysis
06/21/2011US7965735 Local area network of serial intelligent cells
06/21/2011US7965673 System and method for multi-link communication in home network
06/21/2011US7965195 System, device and method for providing power outage and restoration notification
06/16/2011WO2011070564A1 A communication apparatus having dynamic spectrum management capabilities
06/16/2011WO2011069465A1 Communication device, method and system
06/16/2011US20110143655 Self-interference cancellation method and apparatus of relay using the same frequency band in ofdm-based radio communication system
06/16/2011US20110142267 Wired, wireless, infrared, and powerline audio entertainment systems
06/16/2011US20110142117 Signal detecting method and device for multi-codeword mimo system
06/16/2011US20110142116 Method and apparatus for estimating channel parameter
06/16/2011US20110142110 Method for detecting an ingress of a short-wave radio signal in a power line communication system and power line communication modem
06/16/2011US20110142104 Base and Repeater Stations
06/16/2011US20110142103 Relay apparatus, data relay method, and communication system
06/16/2011DE102005061568B4 Übertragungsanordnung für den Austausch von Informationsdaten zwischen einem elektrischen Verbraucher und einem vorgeordneten Umrichter Transmission arrangement for the exchange of information data between an electrical load and an upstream converter
06/15/2011EP2334014A1 Local area network of serial intelligent cells
06/15/2011EP2334013A1 Intra-building communications
06/15/2011EP2333974A2 Method for transmitting a signal over a power line channel and power line communicatin modem
06/15/2011EP2333973A2 Power line communication methods and devices
06/15/2011EP2332305A2 Method and apparatus for the exclusive identification of control signals in a railway electric line
06/15/2011EP2332304A2 Automatic calibration in high-speed serial interface receiver circuitry
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