Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
05/2012
05/16/2012EP2453584A1 Power line communication method and apparatus
05/16/2012EP2453583A2 Power line communication method and apparatus
05/16/2012EP2452443A1 Method for estimating strength of crosstalk channel
05/16/2012EP2452162A2 Excitation circuit for dc sensors
05/16/2012EP2023501B1 Data transmission method
05/16/2012DE102010043752A1 Verfahren zum Betreiben eines lokalen Energienetzes Method for operating a local energy network
05/16/2012CN1961530B Adaptive margin and band control in DSL system
05/16/2012CN102460988A 电力线通信适配器 Power Line Communication Adapter
05/16/2012CN102457327A 两种传输方式相关联的数据传输方法及其系统 Two means of transmission associated with data transmission method and system
05/15/2012US8180278 Information processing system, communication terminal, information processing unit and program
05/15/2012US8180066 Method and system for transmitting audio signals
05/15/2012US8179953 Mobile station apparatus and transmission channel estimation method
05/15/2012US8179952 Programmable duty cycle distortion generation circuit
05/15/2012US8179950 Startup protocol for high throughput communications systems
05/15/2012US8179781 Method and apparatus for encoding data for transmission in a communication system
05/15/2012US8179235 Tactile interface for mobile devices
05/15/2012CA2444361C Method for detection of a shielding fault in a multiwire cable
05/12/2012CA2757991A1 Electronic accessory with magnetically mating optical data connectors
05/12/2012CA2757814A1 Magnetically coupled connector for electrical and optical data circuits
05/12/2012CA2757812A1 Accessory with connector for electrical and optical data circuits
05/12/2012CA2757810A1 Device with magnetically coupled data connector for electrical and optical data circuits
05/12/2012CA2757807A1 Device with magnetically coupled data connector for electrical and optical data circuits
05/12/2012CA2757774A1 Accessory with connector for electrical and optical data circuits
05/12/2012CA2757773A1 Device with connector for electrical and optical data circuits
05/11/2012DE202011002552U1 Verwendung eines Modems Using a Modem
05/10/2012WO2011147372A3 Method, device and system for reducing cross-talk in digital subscriber line service transmission
05/10/2012US20120114134 Methods and apparatus for control and traffic signaling in wireless microphone transmission systems
05/10/2012US20120114129 Mixer with adaptive post-filtering
05/10/2012US20120112894 Haptic feedback generator, portable device, haptic feedback providing method using the same and recording medium thereof
05/10/2012DE102010060354A1 Apparatus for connecting data processing modules of automated teller machine (ATM) through data cable, has monitoring unit for detection of temporary interruption of data transfer between data processing modules through data cable
05/10/2012DE102010050478A1 Community access TV amplifier i.e. broadband amplifier, for cable distribution system for household purpose, has unit monitoring forward channel and transiently closing switch when pilot signal is detected in channel
05/09/2012EP2451130A1 Communication system including device power communication
05/09/2012EP2451110A2 Data communication apparatus and method based on orthogonal frequency division multiple access
05/09/2012EP2449693A2 Power line communication method and apparatus
05/09/2012CN202218226U Network transmission device capable of outputting DC power source
05/09/2012CN202218066U Smart grid information transmission system based on tri-networks integration network
05/09/2012CN202217882U Intelligent energy-saving power-supply communication device of office desk top
05/09/2012CN102449922A Device and system for communicating on a supply line
05/09/2012CN102447794A Equipment with functions of voice over Internet protocol (VOIP) and power line communication (PLC)
05/09/2012CN102447494A Broadband coupling circuit for multicarrier communication
05/09/2012CN102447493A Communication method based on low-voltage power line, and communication device
05/09/2012CN102447492A Wiring apparatus of humiture monitoring terminal
05/09/2012CN102447491A Slip ring system
05/09/2012CN102447490A System and method for coordination of neighboring networks on wireline communication channels
05/09/2012CN101159450B Circuit for transmitting audio signal using 50Hz carrier current
05/08/2012US8175539 System and method for management of a shared frequency band
05/08/2012US8175521 Repeater system for strong signal environments
05/08/2012US8175520 Multi-hop communication system
05/08/2012US8175297 Ad hoc sensor arrays
05/08/2012US8175289 Digital audio distribution network
05/08/2012US8175287 Sound device
05/08/2012US8175173 Methods and systems for transmitting signals differentially and single-endedly across a pair of wires
05/08/2012US8175172 High speed digital galvanic isolator with integrated low-voltage differential signal interface
05/08/2012US8175171 Transmitter, receiver, transmitting method, receiving method, variable-length serial burst data transfer system, semiconductor device and hybrid semiconductor device
05/08/2012US8175170 Transmitter, receiver, method for transmitting, method for receiving, fixed length serial burst data transfer system, semiconductor device, and hybrid semiconductor device
05/08/2012US8174995 Method and apparatus for flexible pilot pattern
05/08/2012US8174981 Late frame recovery method
05/08/2012US8174371 Portable vibrating device and method of use
05/08/2012US8174335 Process for reduction of the common mode current for power line communications equipment
05/08/2012US8174145 Power supply and communications system for a passenger aircarft
05/08/2012CA2422627C Active terminating device with optional line-receiving and line-driving capabilities
05/03/2012WO2012057753A1 Systems, methods, and apparatus for enabling audio transmission within a communications session
05/03/2012WO2012057708A1 Multiple-mode filter for radio frequency integrated circuits
05/03/2012WO2012057147A1 Communication system and transmission unit
05/03/2012WO2012056927A1 Power line communication system
05/03/2012US20120109395 Controlling multiple smart appliances with a single communication interface
05/03/2012US20120106751 Methods and apparatus for wireless microphone synchronization
05/03/2012US20120106749 Microphone Non-Uniformity Compensation System
05/03/2012US20120106656 Use of powerlines for transmission of high frequency signals
05/03/2012US20120106612 Method of evaluating the profit of a substream of encoded video data, method of operating servers, servers, network and apparatus
05/03/2012US20120106611 Phase locking loop
05/03/2012US20120106607 Systems and Methods for Variable Thresholding in a Pattern Detector
05/03/2012US20120106601 System and Method for Packet Communication
05/03/2012US20120105177 Resonator systems and methods for tuning resonator systems
05/02/2012EP2448133A1 Communication network
05/02/2012EP2446713A1 Method and device for programming a microcontroller
05/02/2012EP2446545A1 Method for evaluating the usability of a sub-carrier of a power-line signal
05/02/2012EP1634386B1 Digital method and device for reducing crosstalk
05/02/2012CN202210826U ADSL (asymmetric digital subscriber line) accelerator
05/02/2012CN202210801U Power carrier data wireless transceiver
05/02/2012CN102437869A Method for concurrently upgrading software of power line carrier communication modules
05/02/2012CN102437868A Urban internet of things system based on intelligent road lamp
05/02/2012CN102437867A Power line communication equipment based on channel cognitive technology
05/01/2012US8170470 On-channel repeater and on-channel repeating method
05/01/2012US8170224 Wideband speakerphone
05/01/2012US8170223 Constant-beamwidth loudspeaker array
05/01/2012US8170199 Echo canceller
05/01/2012US8170102 Macroblock homogeneity analysis and inter mode prediction
05/01/2012US8170088 Methods for determining a reference signal at any location along a transmission media
05/01/2012CA2635912C Devices for controlling the position of an underwater cable
05/01/2012CA2501615C Power line signalling system
05/01/2012CA2354627C Low-power programmable digital filter
04/2012
04/26/2012WO2012053244A1 Plc/power supply hybrid device and device with communication function
04/26/2012WO2012052761A1 Power and communications for remote electronic devices
04/26/2012WO2012052584A1 Voltmeter using capacitive coupling in medium-voltage bushings and busbars
04/26/2012WO2012052504A2 Electrical device for a powerline system for data transmission and powerline system for data transmission
04/26/2012WO2012052085A1 Intermodulation measuring apparatus
04/26/2012US20120102227 System and method for multi-link communication in home network
04/26/2012US20120099662 Communication Protocol Method And Apparatus For A Single Wire Device
04/26/2012US20120099661 Power line communications apparatus
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