Patents for H04B 3 - Line transmission systems (31,523) |
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01/12/2005 | CN1564092A Lighting network control system and its control method |
01/12/2005 | CN1184745C Device for eleminating echo |
01/11/2005 | US6842668 Remotely accessible power controller for building lighting |
01/11/2005 | US6842519 Communication with current detection |
01/11/2005 | US6842516 Digital adaptive filter and acoustic echo canceller using the same |
01/11/2005 | US6842481 Apparatus and method for secure media independent interface communications by corrupting transmit data on selected repeater port |
01/11/2005 | US6842236 Method and device for continuously monitoring an optical transmission path |
01/11/2005 | US6842012 Modeling and calibrating a three-port time-domain reflectometry system |
01/11/2005 | CA2278930C Bidirectional communication system having symmetrical transmission rates |
01/06/2005 | WO2005002295A2 Circuit and method for suppression of electromagnetic coupling and switching noise in multilayer printed circuits boards |
01/06/2005 | WO2005002183A2 Statistical adaptive-filter controller |
01/06/2005 | WO2005002079A2 A method and system for bidirectional data and power transmission |
01/06/2005 | WO2005002065A2 Ultra-wideband communication through local power lines |
01/06/2005 | WO2004105268A3 Method and apparatus for branching a single wire power distribution system |
01/06/2005 | WO2004092911A3 System and method for preventing phantom data communication links |
01/06/2005 | US20050005150 Apparatus and method for location specific authentication using powerline networking |
01/06/2005 | US20050002449 Signal observation system |
01/06/2005 | US20050002408 Home appliance network system and method for operating the same |
01/06/2005 | US20050002142 Surge-protected networking power strip |
01/06/2005 | US20050001712 RF ID tag |
01/06/2005 | US20050001694 Power line communication system and method of operating the same |
01/06/2005 | US20050001693 Power line communication system and method of operating the same |
01/06/2005 | CA2528102A1 A method and system for bidirectional data and power transmission |
01/05/2005 | EP1464158A4 Verification of proper coupling of power line communication units to power circuits |
01/05/2005 | CN1561010A Echo cancel circuit for billion Ethernet receiver |
01/05/2005 | CN1561009A Data alignment circuit in receiving channel of billion Ethernet receiver |
01/05/2005 | CN1560852A 波形均衡器 Waveform equalizer |
01/04/2005 | US6839872 Media converter and failure detection technique |
01/04/2005 | US6839427 Method and apparatus for echo canceller automatic gain control |
01/04/2005 | US6839426 Echo cancellor |
01/04/2005 | US6838978 Appliance data collecting system |
01/04/2005 | US6838865 Method and apparatus for branching a single wire power distribution system |
12/30/2004 | US20040267382 Food preparation system |
12/30/2004 | US20040266346 Passive repeater/terminator |
12/30/2004 | US20040266334 Electromagnetic field communications system for wireless networks |
12/30/2004 | US20040266332 Communication methods and apparatus |
12/30/2004 | US20040264686 Statistical adaptive-filter controller |
12/30/2004 | US20040264581 System and method for communicating calibration data |
12/30/2004 | US20040264562 Decision feedback equalization for high speed serial links |
12/30/2004 | US20040264501 Dynamic power line bandwidth limit |
12/30/2004 | US20040263321 Method and system for bidirectional data and power transmission |
12/30/2004 | US20040263317 Mobile remote burglarproof learning system |
12/30/2004 | US20040263282 Modem coupling circuit for power-line carrier |
12/29/2004 | WO2004114684A2 Method and apparatus for non-centralized network bandwidth management |
12/29/2004 | WO2004114615A1 Apparatus and method for estimating a channel in a multiple input transmission system |
12/29/2004 | WO2004114578A2 Echo cancellation in systems with asymmetric spectrum |
12/29/2004 | WO2004114543A1 Power line communication device, control system, and method for setting a connection wire in power line communication device |
12/29/2004 | WO2004114541A2 Sparse echo canceller |
12/29/2004 | WO2004030431A3 Method and system for signal repeating in powerline communications |
12/29/2004 | EP1492289A2 Decision feedback equalization for high speed serial links |
12/29/2004 | EP1492287A1 Receiver |
12/29/2004 | EP1492247A1 Interference proof input stage of a two wire line |
12/29/2004 | EP1198897A4 Crest factor compensated driver |
12/29/2004 | EP1166544A4 Interference canceling method and apparatus |
12/29/2004 | CN1559128A Crosstalk equalization for input-output driver circuits |
12/29/2004 | CN1559111A Dynamic allocation of frequency spectrum |
12/29/2004 | CN1558565A Power line transmission digital multiple track speaker system |
12/29/2004 | CN1558564A Power line based data communication system and realizing method thereof |
12/29/2004 | CN1558563A Echo eliminator and use method thereof |
12/29/2004 | CN1558562A 2Mbps based low voltage power line high speed data communication system and network adaptor thereof |
12/29/2004 | CN1557664A Bus type intelligent sensor set for state monitoring |
12/29/2004 | CN1182700C Status monitoring and data processing system suitable for use in a bi-directional communication device |
12/29/2004 | CN1182519C Optical disc replaying device |
12/28/2004 | US6836517 Distortion compensating apparatus |
12/28/2004 | US6836508 Method and apparatus for using unintended radio frequency propagation in a network |
12/28/2004 | US6836124 Capacitance monitoring systems |
12/28/2004 | CA2297871C Dmt test method for determining adsl capability of cables |
12/23/2004 | WO2004112274A1 Signal filling/extraction device |
12/23/2004 | WO2004112273A1 Method enabling multiple communication nodes to access a transmission means on an electrical grid |
12/23/2004 | WO2004111666A1 Method and apparatus for testing a medium |
12/23/2004 | WO2004036772A3 Arrangement of a data coupler for power line communications |
12/23/2004 | US20040261121 Distributed gain network |
12/23/2004 | US20040261101 Method and apparatus for non-centralized network bandwidth management |
12/23/2004 | US20040260738 Sparse echo canceller |
12/23/2004 | US20040259603 Charging device for mobile terminals with integrated powerline modem |
12/23/2004 | US20040258185 Device for reproducing received data for radio data communication and a method of adjusting frequency therefor |
12/23/2004 | US20040258172 Method and system for data rate optimization in a digital communication system |
12/23/2004 | US20040258166 Data transceiver and method for equalizing the data eye of a differential input data signal |
12/23/2004 | US20040258165 Transmission system for transmiting data via current conducting branches |
12/23/2004 | US20040258141 Digital communication over 28VDC power line |
12/23/2004 | US20040257731 Local network using an electrical power distribution system and associated reflection device |
12/23/2004 | US20040257207 Insertion of repeaters without timing constraints |
12/23/2004 | US20040257121 Data transfer apparatus for low voltage differential signaling |
12/23/2004 | DE10324373A1 Stromversorgung über die Datenleitungen in lokalen Netzen Power supply via the data lines in local networks |
12/23/2004 | CA2529874A1 Method enabling multiple communication nodes to access a transmission means on an electrical grid |
12/22/2004 | EP1488626A2 Protecting medium voltage inductive coupled device from electrical transients |
12/22/2004 | EP1284064B1 Method and device for controlling the timing of a digital receiver |
12/22/2004 | EP1190541B1 Circuit and method for galvanically isolated broadband transmission |
12/22/2004 | CN1556623A Intelligent community and intelligent domestic automation system based on full electric power line and method |
12/22/2004 | CN1556590A Channel optimization device for power line high speed dada communication system |
12/22/2004 | CN1181659C Two-line interface method for digital terminal and power line simulated carrier |
12/22/2004 | CN1181624C Transmission mode of powder distribution wire and signal sampler in power transmission system |
12/22/2004 | CN1181623C Two-channel 2-4 line user's interface device |
12/21/2004 | US6834109 Method and apparatus for mitigation of disturbers in communication systems |
12/21/2004 | US6834108 Method for improving acoustic noise attenuation in hand-free devices |
12/21/2004 | US6834091 Time synchronization for data over a powerline modem network |
12/21/2004 | CA2234555C An adaptive echo cancellation method |
12/16/2004 | WO2004109948A2 Near-end, far-end and echo cancellers in a multi-channel transceiver system |
12/16/2004 | WO2004109804A1 Method for fabricating semiconductor device |
12/16/2004 | WO2004098088A3 Multiple channel interference cancellation |