| Patents for H04B 3 - Line transmission systems (31,523) |
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| 07/18/2012 | CN101159386B Power feeding system, electrical apparatus, power feeding apparatus, and computer readable storage medium |
| 07/17/2012 | US8224237 Method and apparatus related to on-board message repeating for vehicle consist communications system |
| 07/17/2012 | US8223960 Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system |
| 07/17/2012 | US8223959 Echo cancellation in which sound source signals are spatially distributed to all speaker devices |
| 07/17/2012 | US8223826 Measuring noise power at wireless receivers using pilot symbol information |
| 07/17/2012 | US8223825 Method and computer program for estimating signal quality value, and signal quality estimator, receiver and communication apparatus |
| 07/17/2012 | US8223793 Method for transmitting line signals via a line device, and transmission apparatus |
| 07/17/2012 | US8222769 Magnetic coupling type isolator |
| 07/17/2012 | CA2762503A1 Generating a network map |
| 07/12/2012 | WO2012094528A1 Systems and methods for stereo echo cancellation |
| 07/12/2012 | WO2012093033A1 Process and system for calibrating a first loop feature value estimation method using a first locally measurable loop characteristic and a first set of parameters |
| 07/12/2012 | US20120180094 Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input |
| 07/12/2012 | US20120177217 Digital wireless audio transmission system and method for wireless audio transmission |
| 07/12/2012 | US20120177133 Closed-circuit power line communication |
| 07/12/2012 | US20120177132 Power line communications method and apparatus |
| 07/12/2012 | DE102011008124A1 Power bus has current source for controlling supply voltage control circuit, where current source for multiple fault-current-controlled loads is arranged in bus |
| 07/12/2012 | DE102006010900B4 System zur berührungslosen Übertragung von Information System for the contactless transmission of information |
| 07/11/2012 | EP2475103A1 Power line communication system on aircraft |
| 07/11/2012 | EP2301164B1 System for transmitting an electrical signal, in particular frequency-related and radiation measurement device equipped with such a system |
| 07/11/2012 | EP1350153B1 System and method for device co-location discrimination |
| 07/11/2012 | EP1068675B1 A method and an arrangement in an analog line interface circuit |
| 07/11/2012 | CN202335024U Intelligent control system of light emitting diode (LED) streetlamp |
| 07/11/2012 | CN202334700U 电力线网络摄像机 Powerline Network Camera |
| 07/11/2012 | CN202334541U 一种低压采集终端现场通信检测用装置 A low pressure gathering spot communication terminal device detection |
| 07/11/2012 | CN202334516U 电梯专用通讯电路装置 Elevator dedicated communication circuit device |
| 07/11/2012 | CN202334515U 一种水下通信装置 Underwater communication device |
| 07/11/2012 | CN202332061U 网络双绞电缆拉力测试辅助教学装置 Tensile testing twisted pair cable network assisted teaching device |
| 07/11/2012 | CN102577149A Electrical isolators |
| 07/11/2012 | CN102577148A Direct current power line communication system and direct current power line communication apparatus |
| 07/11/2012 | CN102577147A Transmission line transceiver for simultaneous bi-directional communication |
| 07/11/2012 | CN102573174A LED (light-emitting diode) street lamp with electric carrier wave and design method thereof |
| 07/11/2012 | CN102573173A LED street lamp system with power carrier wave and design method thereof |
| 07/11/2012 | CN102571654A Multi-carrier frequency self-adaptive power line communication system and method |
| 07/11/2012 | CN102571519A Intelligent scheduling device suitable for carrier communication of ring distribution network and method therefor |
| 07/11/2012 | CN102571514A Intelligent power consumption cell system |
| 07/11/2012 | CN102571386A Upgrading method for EOC terminal equipment |
| 07/11/2012 | CN102571152A Control device of transmitted power of power line carrier communication |
| 07/11/2012 | CN102571151A Processing method for power line communication network and central coordinator (CCo) |
| 07/11/2012 | CN102571150A Time-sharing communication system on basis of power grid |
| 07/11/2012 | CN102571149A Relay method and nodal point of power line communication |
| 07/11/2012 | CN102571148A Power grid communication system based on medium-pressure power carrier technology |
| 07/11/2012 | CN102571147A Sound processing apparatus, method, and program |
| 07/11/2012 | CN101313483B Configuration of echo cancellation |
| 07/11/2012 | CN101119136B Method and device for obtaining essential parameter of circuit |
| 07/10/2012 | US8218780 Methods and systems for blind dereverberation |
| 07/10/2012 | US8218612 Timing error detector and method thereof |
| 07/10/2012 | US8218611 Signal generator providing ISI scaling to touchstone files |
| 07/10/2012 | US8218485 System and method for multi-link communication in home network |
| 07/10/2012 | US8217769 Actuating a tactile sensation in response to a sensed event |
| 07/10/2012 | US8217768 Video reproduction apparatus and method for providing haptic effects |
| 07/10/2012 | US8217753 Electronics antitheft authorizing unit |
| 07/10/2012 | US8217527 Midspan powering in a power over ethernet system |
| 07/10/2012 | US8217268 Alien crosstalk suppression with enhanced patch cord |
| 07/10/2012 | CA2596028C Delayed adaptation structure for improved double-talk immunity in echo cancellation devices |
| 07/10/2012 | CA2448686C Fiberoptic coupling |
| 07/10/2012 | CA2432404C Door station apparatus with electric lock |
| 07/05/2012 | WO2012091689A1 Apparatus for transmitting relay protection and automatic emergency control commands |
| 07/05/2012 | WO2012090195A1 An indoor wireless network with ceiling- mounted repeaters |
| 07/05/2012 | WO2012088606A1 Cable modem with dual automatic attenuation |
| 07/05/2012 | US20120172033 Playback Pause Before Signal Loss of a Mobile Device |
| 07/05/2012 | US20120170767 Processing Audio Data |
| 07/05/2012 | US20120170755 Systems and methods for stereo echo cancellation |
| 07/05/2012 | US20120170670 Ofdm symbol structure for power line communication |
| 07/05/2012 | US20120170639 Delay compensation for feedback controllers |
| 07/05/2012 | US20120170635 Dynamically adjusted ofdm channel estimation filtering in ofdm communications |
| 07/05/2012 | US20120170628 Differential phase shift keying demodulator, receiver apparatus employing the demodulator, and demodulation method |
| 07/05/2012 | CA2822501A1 Cable modem with dual automatic attenuation |
| 07/04/2012 | EP2472729A1 Interference cancellation system |
| 07/04/2012 | EP2472281A1 Process and system for calibrating a first loop feature value estimation method using a first locally measurable loop characteristic and a first set of parameters |
| 07/04/2012 | EP2471190A2 Power line communications apparatus |
| 07/04/2012 | EP2471189A1 Ethernet over power |
| 07/04/2012 | EP1636914B1 Sparse echo canceller |
| 07/04/2012 | CN202309746U 一种光纤接入电力宽带调制解调器 A fiber optic broadband modem access electricity |
| 07/04/2012 | CN202309724U 一种低压电力线载波信道检测仪 A low-pressure power line carrier channel detector |
| 07/04/2012 | CN202309722U 海底智能声纳探索导弹发射光电缆网络 Smart sonar undersea optical cable network to explore the missile launch |
| 07/04/2012 | CN202309704U 基于电力载波通讯的接触式红外光口电路 Based on Power Line Carrier Communication-contact infrared optical interface circuit |
| 07/04/2012 | CN202309703U 液压支架总线控制的信号中继器 Signal repeater control hydraulic support bus |
| 07/04/2012 | CN202309702U 基于信道认知技术的电力线通信设备 Cognitive techniques based on channel power line communication equipment |
| 07/04/2012 | CN202309701U 基于电力抄表终端的以太网通信装置 Ethernet-based communication device power meter reading terminal |
| 07/04/2012 | CN202309700U 中继器及电力线路故障检测系统 Repeaters and power line fault detection system |
| 07/04/2012 | CN202309060U 一种电力线载波通讯三相阻波器 A power line carrier communications three-phase traps |
| 07/04/2012 | CN1833421B Multi-carrier communication apparatus with adaptive transmission according to transmission path fluctuations |
| 07/04/2012 | CN1523868B Network phone system and method having dynamic gain control function |
| 07/04/2012 | CN102549961A Method for reducing interferences between a first carrier current signal transmitted between modems of a power grid and a second signal transmitted between modems of another grid |
| 07/04/2012 | CN102548133A Communication system used for controlling electrical loads |
| 07/04/2012 | CN102547775A System and method for simultaneous indoor covering of multiple types of communication signals by utilizing CATV (community antenna television) cable |
| 07/04/2012 | CN102546496A Baseband digital signal processing device based on power line carrier communication |
| 07/04/2012 | CN102546360A Network communication node for power line communication network and data transmission method for same |
| 07/04/2012 | CN102546236A Central coordinator switching method and coordinator |
| 07/04/2012 | CN102545963A Electric power communication system utilizing SDH to remotely transmit Ethernet data |
| 07/04/2012 | CN102545962A Network signal transmission method, equipment and system |
| 07/04/2012 | CN102545961A Active reporting and automatic networking method and system for non-networked node |
| 07/04/2012 | CN102545960A Communication apparatus for rapidly adjusting analog echo cancellation circuit parameter and related method |
| 07/04/2012 | CN102545937A Method and apparatus for detection and prevention of crosstalk in a multiple tuner receiver |
| 07/04/2012 | CN102542774A Data telegram generation method for controlling at least one load, e.g. a lamp, over a power line |
| 07/04/2012 | CN102541002A Mining monitoring system based on low voltage power line carrier communication |
| 07/04/2012 | CN102527170A Fan filter unit (FFU) group control system based on wireless and electric wire carrier communication technology |
| 07/04/2012 | CN102524029A Two-line irrigation observation and control system |
| 07/04/2012 | CN101753530B Data transmission method and device for traversing physical unidirectional isolation device of power network |
| 07/04/2012 | CN101621313B High-voltage power line carrier signal communication coupling method and device |