| Patents for H04B 3 - Line transmission systems (31,523) |
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| 07/10/2007 | US7242762 Monitoring and control of an adaptive filter in a communication system |
| 07/10/2007 | US7242721 Method for estimating the transfer function of a multicarrier signal transmission channel and corresponding receiver |
| 07/10/2007 | US7242684 Architecture for switching packets in a high-speed switching environment |
| 07/10/2007 | US7242265 Element of parallel flat plate line type, a circuit board |
| 07/05/2007 | WO2007073978A1 Transmitting arrangement for exchanging information data between an electric consumer and an upstream converter |
| 07/05/2007 | WO2005091939A3 Timer systems and methods |
| 07/05/2007 | WO2005082059A3 Focused parametric array |
| 07/05/2007 | US20070154036 Electrostatic ultrasonic transducer drive control method, electrostatic ultrasonic transducer, ultrasonic speaker using the same, audio signal reproduction method, ultra-directional acoustic system, and display device |
| 07/05/2007 | US20070154035 Electrostatic ultrasonic transducer, ultrasonic speaker, sound signal reproducing method, ultra directional acoustic system and display device |
| 07/05/2007 | US20070154022 Echo Cancellation Circuit |
| 07/05/2007 | US20070152681 Modeling and calibrating a three-port time-domain reflectometry system |
| 07/05/2007 | DE20321413U1 Kommunikationsnetz über Stromtransportleitung Communication network via electricity transmission line |
| 07/05/2007 | DE102005062253A1 Mehrbereichsverstärker Multigrade amplifier |
| 07/05/2007 | DE102005061568A1 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 |
| 07/04/2007 | EP1803288A1 Echo cancellation |
| 07/04/2007 | EP1492287B1 Receiver for eliminating common mode noise in a differential signal |
| 07/04/2007 | CN1993904A Non-frequency translating repeater with detection and media access control |
| 07/04/2007 | CN1992547A System and method for driving an antenna |
| 07/04/2007 | CN1992546A Intelligent power line carrier transmitting-receiving system |
| 07/04/2007 | CN1992545A Transmission system and method |
| 07/04/2007 | CN1324816C Person portable rebroadcasting system |
| 07/04/2007 | CN1324604C Oscillating clock generating circuit and method thereof |
| 07/04/2007 | CN1323922C Elevator cabin monitor and method thereof and mounting method for such monitor |
| 07/03/2007 | US7239725 Face image recognition apparatus |
| 07/03/2007 | US7239680 Methods for performing channel diagnostics |
| 07/03/2007 | US7239665 Selection of pre-computed equalizer based on channel characteristic |
| 07/03/2007 | US7239233 After-market, water-proof, vibrating monitoring system for motorcycle turn indicators |
| 07/03/2007 | US7239169 Semiconductor apparatus capable of preventing occurrence of multiple reflection, driving method, and setting method thereof |
| 06/28/2007 | WO2007072684A1 Interface circuit |
| 06/28/2007 | WO2007072650A1 Echo canceller |
| 06/28/2007 | WO2007071432A1 Adsl test system |
| 06/28/2007 | WO2007071146A1 A broad-narrow band integrated board and method for testing said board |
| 06/28/2007 | WO2007053086A8 Reduction of digital filter delay |
| 06/28/2007 | WO2007021861A3 Directional speaker system |
| 06/28/2007 | WO2006132854A3 System for controlling power and communication to devices through associated device port |
| 06/28/2007 | US20070150264 Voice And Data Exchange Over A Packet Based Network With Voice Detection |
| 06/28/2007 | US20070147413 Local area network of serial intelligent cells |
| 06/28/2007 | US20070147407 Modular outlet |
| 06/28/2007 | US20070147329 Method and system for signal reconstruction from spatially and temporally correlated received samples |
| 06/28/2007 | US20070146092 High voltage pulsed power supply using solid state switches with droop compensation |
| 06/28/2007 | US20070146091 Data transmitter, data transmission line, and data transmission method |
| 06/27/2007 | EP1801994A1 ADSL test system |
| 06/27/2007 | EP1801967A2 Active star point for use in a communications system with star topology |
| 06/27/2007 | EP1800418A2 Buffered waveforms for high speed digital to analog conversion |
| 06/27/2007 | CN2917097Y Power carrier communication device for controlling LED |
| 06/27/2007 | CN1989702A 扩展频谱隔离器 Spread spectrum isolator |
| 06/27/2007 | CN1989700A Sub-block domain transformation multiple signal processing |
| 06/27/2007 | CN1989550A Audio signal dereverberation |
| 06/27/2007 | CN1988560A Echo cancel circuit |
| 06/27/2007 | CN1988404A Apparatus for adjusting phase between the different phases in power line communication system |
| 06/27/2007 | CN1988403A System for using power network to realize existing wireless local area network extension coverage |
| 06/27/2007 | CN1988402A Method for realizing power line carrier communication system |
| 06/27/2007 | CN1988401A System and method for preventing misreceiving number echo |
| 06/27/2007 | CN1987950A CAN bus data collector |
| 06/27/2007 | CN1323490C Method of eliminating crosstalk |
| 06/27/2007 | CN1323393C Circuit board transmitting high frequency signal |
| 06/26/2007 | US7237020 Integer programming technique for verifying and reprovisioning an interconnect fabric design |
| 06/26/2007 | US7236765 Data communication over power lines |
| 06/26/2007 | US7236614 Device, system, and method for identifying living bodies and renewing registration data |
| 06/26/2007 | US7236600 Transmission of power and/or signalling between an audio distribution unit and a plurality of remote audio transducers |
| 06/26/2007 | US7236586 Synchronization of echo cancellers in a voice processing system |
| 06/26/2007 | US7236555 Method and apparatus for measuring jitter |
| 06/26/2007 | US7236463 Transceiver for echo and near-end crosstalk cancellation without loop timing configuration |
| 06/26/2007 | CA2451417C Method of capturing constant echo path information in a full duplex speakerphone using default coefficients |
| 06/21/2007 | WO2007069450A1 Digital communication system, indoor device, and outdoor device |
| 06/21/2007 | WO2007068166A1 Electricity echo elimination device and method |
| 06/21/2007 | WO2006133152A3 Power line communication system |
| 06/21/2007 | WO2006109316A3 Apparatus and method of equalisation |
| 06/21/2007 | US20070143508 Common field bus for data and energy transfer |
| 06/21/2007 | US20070140507 Sound distributor and a system for distributing sound |
| 06/21/2007 | US20070140506 Synchronization of sound generated in binaural hearing system |
| 06/21/2007 | US20070139186 Circuit configuration for transmission of data signals from and/or to household appliances |
| 06/21/2007 | US20070139167 Electromagnetic field tactile display interface and biosensor |
| 06/21/2007 | US20070139132 YIG filter tuning system |
| 06/20/2007 | EP1797649A1 Device and method for adjusting power spectral densities of a plurality of telecommunication lines |
| 06/20/2007 | EP1797648A1 Suppressing echo cancelling in packet switched network |
| 06/20/2007 | EP1530833B1 Assembly and method for connecting a power line data transmission device to several power supply lines |
| 06/20/2007 | EP1394960B1 Automatic gain control system for a multi-user ofdm digital transmission system using the electric grid |
| 06/20/2007 | EP1118245B1 Line terminator unit for a subscriber line |
| 06/20/2007 | CN2914496Y Reversed polarity data transmitting device on DC power supply lines |
| 06/20/2007 | CN1985459A System and method for generating a jittered test signal |
| 06/20/2007 | CN1322729C Circuit device and method for compen sating interference in signal |
| 06/20/2007 | CN1322692C Method for equalizing propagation delays and optimizing power level in radio communication system |
| 06/19/2007 | US7233770 Communications system using separate receive and transmit frequency hopping hopsets |
| 06/19/2007 | US7233599 Interface device with stored data on transmission lines characteristics |
| 06/19/2007 | US7233242 Arrangement and method for setting a transmit power |
| 06/19/2007 | US7233215 Frequency modulation circuit |
| 06/14/2007 | WO2007067125A2 Echo detection |
| 06/14/2007 | WO2007066054A1 Method of correcting the para-crosstalk of an sdsl link |
| 06/14/2007 | WO2005107063A8 Bypass circuit |
| 06/14/2007 | US20070135038 Portable a/v relay device |
| 06/14/2007 | US20070135037 Method for operating a frequency converter circuit |
| 06/14/2007 | US20070133817 Wireless audio system using wireless local area network |
| 06/14/2007 | US20070133716 Digital multimedia broadcasting receiver having improved reception capability and channel estimation method of the same |
| 06/14/2007 | US20070133667 Timing lock detection apparatus and method for digital broadcasting receiver |
| 06/14/2007 | US20070133665 Network aware mobile devices and operations |
| 06/14/2007 | US20070133443 Automatic tuning of multicavity filters of microwave signals |
| 06/14/2007 | US20070133442 Two-way communications device having a single transducer |
| 06/14/2007 | US20070133417 Late frame recovery method |
| 06/14/2007 | US20070133185 Next high frequency improvement by using frequency dependent effective capacitance |