| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 10/08/2009 | US20090252343 Integrated latency detection and echo cancellation |
| 10/08/2009 | US20090252341 Adaptive Primary-Ambient Decomposition of Audio Signals |
| 10/08/2009 | US20090252235 Method of modulation mode detection for communication system |
| 10/08/2009 | US20090252209 Power Line Communication Networks and Methods employing Multiple Widebands |
| 10/08/2009 | US20090252208 Multi-Unit Power Line Communications System and Method |
| 10/08/2009 | US20090252207 Methods and apparatus to test a central office digital subscriber line modem |
| 10/08/2009 | DE102009008182A1 Empfangsvorrichtung mit Impedanzsteuerschaltung und Halbleitervorrichtung mit Impedanzsteuerschaltung Receiving apparatus with impedance control circuit and semiconductor device with impedance control circuit |
| 10/08/2009 | DE102008017506A1 Light, has signal decoder extracting packets from signal, where packets contain address and user data, and control device for controlling lighting unit for emission of light with brightness dependent on brightness value |
| 10/08/2009 | DE102008009542A1 Netzteil mit Datenschnittstelle Power supply with data interface |
| 10/07/2009 | EP2107772A1 Measuring line performance |
| 10/07/2009 | EP2107750A1 Method for processing interfering signals in an XDSL system |
| 10/07/2009 | EP2107693A1 Method and device for SNR measurement and communication system comprising such device |
| 10/07/2009 | EP2107692A1 Method, equipment and system for eliminating dsl crosstalk |
| 10/07/2009 | EP2106645A2 Network repeater |
| 10/07/2009 | CN101552849A Echo canceler circuit and method |
| 10/07/2009 | CN101552640A Device and method for altering filter coefficients |
| 10/07/2009 | CN100547947C Detecting control circuit for two-wire multiple signal transmission speaker in public broadcast system |
| 10/06/2009 | US7599483 Echo canceler circuit and method |
| 10/06/2009 | US7599432 Method and apparatus for dynamically inserting gain in an adaptive filter system |
| 10/06/2009 | US7599316 Bi-directional bridge circuit having high common mode rejection and high input sensitivity |
| 10/01/2009 | WO2009119077A1 Electronic circuit board and power line communication device using the same |
| 10/01/2009 | WO2009098581A3 Communication device for household electric appliances and monitoring system using said device |
| 10/01/2009 | US20090245816 Filter coefficient changing apparatus and method |
| 10/01/2009 | US20090245548 Audio apparatus for wirelessly transmitting audio signal, audio system, and audio signal transmission method thereof |
| 10/01/2009 | US20090245528 Method for reducing echo and related echo reducing device and voice apparatus thereof |
| 10/01/2009 | US20090245527 Linear full duplex system and method for acoustic echo cancellation |
| 10/01/2009 | US20090245503 Device for canceling crosstalk, signal processing system and method for canceling crosstalk |
| 10/01/2009 | US20090245502 Acoustic echo canceler |
| 10/01/2009 | US20090245395 Transmission control apparatus and transmission control method |
| 10/01/2009 | US20090243747 Methods and devices for compensating a signal using resonators |
| 09/30/2009 | EP2106109A1 Method for identifying a device transmitting an echo signal, echo source identifying method for identifying echo source, measuring apparatus for identifying a source of an echo, and echo source identifying apparatus |
| 09/30/2009 | EP2106081A2 Method for processing interference in an xDSL system |
| 09/30/2009 | EP2104863A1 A method for determining the current return path integrity in an electric device connected or connectable to a further device |
| 09/30/2009 | CN201319599Y Passive twisted pair video, power supply and control signal transmitter |
| 09/30/2009 | CN101546468A Dynamic maintenance method of bidimensional midsequent carrier routing |
| 09/29/2009 | US7596229 Parametric audio system for operation in a saturated air medium |
| 09/29/2009 | US7596228 Parametric array modulation and processing method |
| 09/29/2009 | US7596173 Test apparatus, clock generator and electronic device |
| 09/29/2009 | US7595546 Printed circuit board |
| 09/29/2009 | CA2539798C A method to reduce training time of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system |
| 09/29/2009 | CA2289265C Line shunt and ground fault apparatus and method |
| 09/24/2009 | WO2009117084A2 System and method for envelope-based acoustic echo cancellation |
| 09/24/2009 | WO2009115798A1 Power and data communication along underwater pipes |
| 09/24/2009 | WO2008104686A8 Test installation with a test bench and method for using such a test bench in said installation |
| 09/24/2009 | US20090238373 System and method for envelope-based acoustic echo cancellation |
| 09/24/2009 | US20090238257 Lonely pulse compensation |
| 09/24/2009 | US20090238255 Estimation of Error Propagation Probability to Improve Performance of Decision-Feedback Based Systems |
| 09/24/2009 | US20090238254 System and method for establishing a diagnostic transmission mode and communicating over the same |
| 09/24/2009 | US20090238102 Generating an estimated non-linear echo signal |
| 09/24/2009 | US20090237225 Supply line structure for transmitting information between motor-vehicle components |
| 09/24/2009 | US20090237174 Integrated circuit device, electro-optical device, and electronic instrument |
| 09/24/2009 | US20090236907 Low Voltage Control Interface Coupler For Multipulse Transmitter |
| 09/24/2009 | DE102009013805A1 Verfahren und Vorrichtung für einen Leitungstreiber Method and apparatus for line driver |
| 09/23/2009 | EP2104240A1 Digital control of electronic ballasts using AC power lines as a communication medium |
| 09/23/2009 | EP2002556B1 Electronic synchronous/asynchronous transceiver device for power line communication networks |
| 09/23/2009 | CN101542928A Distributed antenna communications system and methods of implementing thereof |
| 09/23/2009 | CN101542927A 信号传输系统 A signal transmission system |
| 09/23/2009 | CN101541115A System and method for constructing solid lighting network by utilizing electric power system |
| 09/23/2009 | CN101540627A Receiving device comprising impedance control circuit and semiconductor device |
| 09/23/2009 | CN100544338C Apparatus and method for detecting echo in the frequency domain |
| 09/23/2009 | CN100544223C Device and method for carrying out multichannel acoustic echo compensation with a variable number of channels |
| 09/23/2009 | CN100544196C Concurrent process method and system for blind deconvolution of digital signals |
| 09/22/2009 | US7594122 Method of determining whether a test subject is a specific individual |
| 09/22/2009 | US7593689 Method for detecting an oscillation in an on-frequency repeater |
| 09/22/2009 | US7593688 Delay based space and time coordinated repeater system |
| 09/22/2009 | US7593470 High-speed communication system with a feedback synchronization loop |
| 09/22/2009 | US7593469 OCAP engine module |
| 09/22/2009 | US7593459 Wireless link simulator |
| 09/22/2009 | US7593458 FEXT determination system |
| 09/22/2009 | US7593372 Method and radio device for scanning a wireless communications channel |
| 09/22/2009 | US7593315 Cable diagnostics for 10GBASE-T transceivers |
| 09/22/2009 | US7592901 Input device |
| 09/22/2009 | CA2399016C Improved system and method for implementation of an echo canceller |
| 09/17/2009 | WO2009113462A1 Waveform equalization circuit and waveform equalization method |
| 09/17/2009 | US20090232326 Digital audio distribution network |
| 09/17/2009 | US20090232193 Echo profile probe |
| 09/17/2009 | DE102004024823B4 Verfahren zur Verringerung eines Rechenaufwands in nichtlinearen Filteranordnungen sowie entsprechende Filteranordnungen A method for reducing computational complexity in a non-linear filter assemblies and filter assemblies corresponding |
| 09/16/2009 | CN201312308Y High-efficiency two-wire system power modulation bus |
| 09/16/2009 | CN101536343A Interference cancellation system |
| 09/16/2009 | CN101536342A Method and arrangement for the adaptive filtering of signals |
| 09/16/2009 | CN101534139A Four-in-one digital community network system |
| 09/16/2009 | CN101534138A Method for bit-loading, device for bit-loading and data transmission system |
| 09/16/2009 | CN100542077C Audio frequency synchronous aligning testing method |
| 09/16/2009 | CN100542065C Two-wire system double-signal transmitting loudspeaker detection control circuit in public broadcasting system |
| 09/15/2009 | US7590172 Low bias estimation of small signal-to-noise ratio |
| 09/15/2009 | US7590171 Apparatus and method for estimating a carrier-to-interference-and-noise ratio in a communication system |
| 09/15/2009 | US7590170 Method and apparatus for measuring jitter |
| 09/15/2009 | US7590087 Methods for wireless data transmission between a base station and one or more transponders |
| 09/15/2009 | US7590077 Canceller device and data transmission system |
| 09/15/2009 | US7589605 Method and apparatus to provide compensation for parasitic inductance of multiple capacitors |
| 09/15/2009 | CA2351100C Training sequences for low-latency lms implementation |
| 09/11/2009 | WO2009110961A1 Frequency domain echo and next cancellation |
| 09/11/2009 | WO2009110809A1 Method and apparatus for acoustic echo cancellation in voip terminal |
| 09/11/2009 | WO2009109731A1 Powerline communications network installation method |
| 09/10/2009 | US20090228318 Server and sensor net system for measuring quality of activity |
| 09/10/2009 | US20090226165 Apparatus and method of controlling tap coefficient of transversal filer, optical receiver apparatus, and optical communication system |
| 09/10/2009 | US20090226002 Delivery system, transmission apparatus, and delivery method |
| 09/10/2009 | US20090226000 System and method for directional sound transmission with a linear array of exponentially spaced loudspeakers |
| 09/10/2009 | US20090225997 Acoustic Echo Cancellation |
| 09/10/2009 | US20090225873 Multiple Transmitter System and Method |