| Patents for H04B 3 - Line transmission systems (31,523) |
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| 07/02/2009 | DE102007062957A1 Power supply line and lighting fixture e.g. lamp, communication providing method, for e.g. building automation, involves executing control sequence based on potential sequence, while maintaining protective conductor at constant potential |
| 07/01/2009 | EP2075924A1 Waveform equalizing device |
| 07/01/2009 | EP2074776A1 Method and arrangement for power minimization in a multi-tone transmission-based communication system |
| 07/01/2009 | EP2074705A1 Method for estimating a channel in a coordinated system when a line is taken into operation |
| 07/01/2009 | EP2005612A4 Power line communications coupler |
| 07/01/2009 | EP1700465B1 System and method for enchanced subjective stereo audio |
| 07/01/2009 | CN201266930Y Apparatus for transmitting high-frequency modulating signal through data cable |
| 07/01/2009 | CN101471699A 电力线传输 Power line transmission |
| 07/01/2009 | CN101471698A RS485 bus system containing power supply module |
| 07/01/2009 | CN101471697A Electric power line internet device with DC power supply output and network signal connection function |
| 07/01/2009 | CN101471696A Method, apparatus and system for processing data |
| 07/01/2009 | CN101471695A Line management method, device and system |
| 07/01/2009 | CN101471694A Device and method for eliminating interference |
| 07/01/2009 | CN100508509C Method and apparatus for wireless data transmission |
| 07/01/2009 | CN100508417C Multi-speed hybrid power line broadband access system and relay thereof |
| 07/01/2009 | CN100508416C Adjustable echo remover for whole duplex communication system |
| 06/30/2009 | US7555116 Real time processing and management method for cancelling out the echo between a loudspeaker and a microphone of a computer terminal |
| 06/30/2009 | US7555055 Digital subscriber line communicating system |
| 06/30/2009 | US7555047 Apparatus, method and computer program for detecting echo in the frequency domain |
| 06/30/2009 | US7555038 Transmission system, signal receiver, test apparatus and test head |
| 06/30/2009 | US7554933 Echo cancellation device for full duplex communication systems |
| 06/30/2009 | US7554459 Method and system for remote updates of meters for metering the consumption of electricity, water or gas |
| 06/30/2009 | US7554338 Display for measuring phase noise characteristics |
| 06/25/2009 | WO2009077403A1 Method for transmitting data within a bus system and bus system |
| 06/25/2009 | WO2009076831A1 Method, equipment and system for eliminating dsl crosstalk |
| 06/25/2009 | US20090163218 Method and system for allocating subcarrier frequency resources for a relay enhanced cellular communication system |
| 06/25/2009 | US20090161884 Ethernet isolator for microphonics security and method thereof |
| 06/25/2009 | US20090161745 Parameter Estimation for Modulated Signals |
| 06/25/2009 | US20090161744 Method for estimating and monitoring timing errors in packet data networks |
| 06/25/2009 | US20090161743 Integrated compact eye pattern analyzer for next generation networks |
| 06/25/2009 | US20090160831 Information device |
| 06/24/2009 | EP2073519A1 Identification of pairs |
| 06/24/2009 | EP1884034B1 Communication apparatus enabling coexistence of systems |
| 06/24/2009 | EP1125275A4 Background energy estimation |
| 06/24/2009 | CN101465673A Detection system for cable bridge equipment radio frequency parameter |
| 06/24/2009 | CN101465672A Method, device and system for reducing crossfire of digital customer line |
| 06/24/2009 | CN101465671A Method for manufacturing transmission line equalizer |
| 06/24/2009 | CN100504722C LAN (local area network) with integrated energy and information transmission over the same line |
| 06/23/2009 | US7551745 Volume and compression control in movie theaters |
| 06/23/2009 | US7551616 Forwarding packets to aggregated links using distributed ingress card processing |
| 06/23/2009 | US7551544 Power control of digital subscriber line |
| 06/23/2009 | US7551168 Automatic equalization of video signals |
| 06/23/2009 | US7551042 Microwave pulse compressor using switched oversized waveguide resonator |
| 06/18/2009 | WO2009075068A1 Train communication system, communication device, and relay device |
| 06/18/2009 | WO2009074102A1 Communication cable, system, cabinet and combining method for twisted pairs in communication cable |
| 06/18/2009 | US20090154723 Method of and apparatus for controlling sound field through array speaker |
| 06/18/2009 | US20090154722 Audio Receiving Device And Method Of Forming Same |
| 06/18/2009 | US20090154721 Image apparatus and method for transmitting audio data |
| 06/18/2009 | US20090154717 Echo Suppressing Method and Apparatus |
| 06/18/2009 | US20090154692 Voice processing apparatus, voice processing system, and voice processing program |
| 06/18/2009 | US20090154657 Methods and Systems for Compensation for Alien Crosstalk Between Connectors |
| 06/18/2009 | US20090154573 Signal Demodulation |
| 06/18/2009 | US20090154540 Method and apparatus for estimating channel in mobile communication network |
| 06/18/2009 | US20090154539 Methods and Apparatus for Detecting Errors in Encoding and Decoding of Data |
| 06/18/2009 | US20090154536 Startup protocol for high throughput communications systems |
| 06/18/2009 | US20090154381 Adaptive electronic transmission signal cancellation apparatus for full duplex communication |
| 06/18/2009 | US20090154380 Echo Cancellation For A Packet Voice System |
| 06/18/2009 | DE102008060552A1 Verfahren zur Sendeleistungssteuerung und Kommunikationsvorrichtung A method for transmission power control and communication device |
| 06/18/2009 | DE102007060555A1 Vorrichtung zur Übertragung von elektrischer Energie und Information Device for transmitting electrical power and information |
| 06/18/2009 | CA2700119A1 Train communication system, communication device and relay device |
| 06/17/2009 | EP2070207A2 Repeater having dual receiver or transmitter antenna configuration with adaptation for increased isolation |
| 06/17/2009 | EP2070180A1 Method for operating and using a converter as active audio frequency block |
| 06/17/2009 | EP1884033B1 Communication system comprising a powerline communication network and at least one other communication network, corresponding node |
| 06/17/2009 | EP1661274A4 Synchronization in a broadcast ofdm system using time division multiplexed pilots |
| 06/17/2009 | EP1290810A4 Sliced bandwidth distortion prediction |
| 06/17/2009 | CN101459447A Dynamic spectrum management method for reducing cross talk interference of digital subscriber line |
| 06/17/2009 | CN100502443C Apparatus for controlling echo suppression in communications systems |
| 06/16/2009 | US7548698 Light communication system and illumination apparatus therefor |
| 06/16/2009 | US7548616 Termination device for a telephone line |
| 06/16/2009 | US7548599 Method and apparatus for reducing cross-talk with reduced redundancies |
| 06/11/2009 | WO2009073528A1 Crosstalk coupling simulator |
| 06/11/2009 | US20090147964 Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system |
| 06/11/2009 | US20090147942 Reducing Echo |
| 06/11/2009 | US20090147875 Radio transmitter and radio receiver |
| 06/11/2009 | US20090147864 HDMI communication over twisted pairs |
| 06/11/2009 | US20090147863 Input signal combiner system and method |
| 06/11/2009 | US20090147862 Semiconductor Device and IC Card Having The Same |
| 06/11/2009 | US20090146755 Planar emi filter |
| 06/10/2009 | EP2068460A2 Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system |
| 06/10/2009 | EP2068456A1 Waveform equalizing device |
| 06/10/2009 | EP2068454A1 A module and device for crosstalk channel estimation |
| 06/10/2009 | EP2067362A2 Method and apparatus for providing and obtaining broadcast/multicast service feedback |
| 06/10/2009 | EP2067270A1 Electrical circuit |
| 06/10/2009 | EP2067269A2 Distributed antenna communications system and methods of implementing thereof |
| 06/10/2009 | DE10066242B4 Kommunikationsfähiger Leistungsschalter Multifunctional breaker |
| 06/10/2009 | CN101454992A Data coupler |
| 06/10/2009 | CN101453247A Data communication method and apparatus using power cord |
| 06/10/2009 | CN101453246A Crosstalk inhibition method for wideband wired access network digital subscriber line |
| 06/10/2009 | CN101453245A Method, equipment and system for eliminating DSL crosstalk |
| 06/10/2009 | CN101453244A Linear echo eliminator |
| 06/10/2009 | CN101453243A Method, equipment and system for on-line reconfiguration control |
| 06/10/2009 | CN101453242A DSL reference virtual noise determination method and apparatus, configuration method and system |
| 06/10/2009 | CN100499721C Echo canceller circuit and method |
| 06/10/2009 | CN100499390C Echo suppressor, echo suppression method using normalization minimum mean-square calculation |
| 06/09/2009 | US7546628 IP address discovery for cable modem in set-top box |
| 06/09/2009 | US7546083 Multimedia data transfer for a personal communication device |
| 06/09/2009 | US7545946 Method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges |
| 06/09/2009 | US7545858 Method of measuring jitter frequency response |
| 06/09/2009 | US7545733 Automatic gain control system for multi-user digital OFDM transmission systems over the electric network |
| 06/09/2009 | CA2490709C Method and apparatus for controlling echo cancellation |