| Patents for H04B 3 - Line transmission systems (31,523) | 
|---|
| 02/28/2008 | US20080049819 Data Communication System with Self-Test Feature | 
| 02/28/2008 | US20080049647 Voice-activity detection based on far-end and near-end statistics | 
| 02/28/2008 | US20080049600 Channel estimation method and system using linear correlation based interference cancellation (lcic) combined with decision-feedback-equalization (dfe) | 
| 02/28/2008 | US20080048783 Bias Circuit | 
| 02/28/2008 | US20080048676 Impedance Monitoring System and Method | 
| 02/28/2008 | DE102006039985A1 Communication device for fuel injectors or injectors in internal combustion engines, has power supply, which is connected to two-point-regulated current supply and pulse width recording device is coupled with power supply | 
| 02/27/2008 | EP1892843A1 Method for transmitting a signal on a power line network, transmitting unit, receiving unit and system | 
| 02/27/2008 | EP1891750A1 Communications method and device | 
| 02/27/2008 | EP1749354A4 Undersea optical transmission system employing low power consumption optical amplifiers | 
| 02/27/2008 | EP1700391B1 Circuit arrangement for the transmission of data signals from and/or to household appliances | 
| 02/27/2008 | CN101133678A Method and apparatus for ambient sound therapy user interface and control system | 
| 02/27/2008 | CN101133632A DSL system estimation including known DSL line scanning and bad splice detection capability | 
| 02/27/2008 | CN101133564A DSL state and line profile control | 
| 02/27/2008 | CN101132194A Crosstalk offsetting method and device thereof | 
| 02/27/2008 | CN101132193A Printed circuit board, and backplane data transmission method | 
| 02/27/2008 | CN101132192A Method, device and system for implementing xDSL multi-module platform mode selection | 
| 02/27/2008 | CN100372268C Cable modem producing and testing method and system | 
| 02/27/2008 | CN100372243C Transmitter/receiver for bidirectional communications | 
| 02/26/2008 | US7336732 Carrier frequency detection for signal acquisition | 
| 02/26/2008 | US7336704 Method and circuit for updating a tap coefficient of a channel equalizer | 
| 02/26/2008 | US7336703 Device and method for measuring a received signal power in a mobile communication system | 
| 02/26/2008 | US7336627 Digital subscriber line transmission method, apparatus and system | 
| 02/26/2008 | US7336320 Method and apparatus for temporally recursive chrominance signal noise reduction | 
| 02/26/2008 | US7336156 Communication apparatus, communication method and installation method of railway vehicle-facility intra communication system | 
| 02/26/2008 | US7336096 System for transmission line termination by signal cancellation | 
| 02/26/2008 | US7334417 Air conditioner and power line communication system | 
| 02/21/2008 | WO2008021638A2 Rs-232 data through a half duplex differential link | 
| 02/21/2008 | WO2008019560A1 Device,system and method for diagnosing the connectivity of dsl | 
| 02/21/2008 | US20080045823 Signal processing apparatus | 
| 02/21/2008 | US20080045143 Radio communications system and radio communications control method | 
| 02/21/2008 | US20080045142 Data sharing system and method for handheld terminals over mobile communication network | 
| 02/21/2008 | US20080043855 Method and Apparatus for Encoding of Low Voltage Swing Signals | 
| 02/21/2008 | US20080043827 Channel Equalization | 
| 02/21/2008 | US20080043826 Sampling Mechanism for Data Acquisition Counters | 
| 02/21/2008 | CA2666579A1 Device,system and method for diagnosing interworking fault of x digital subscriber line transceivers | 
| 02/20/2008 | EP1889377A2 Power line communication system | 
| 02/20/2008 | EP1889084A1 Module for testing electromagnetic compatibility of a high-speed ethernet interface onboard an aircraft | 
| 02/20/2008 | EP1695479B1 System for signals distribution to a plurality of users | 
| 02/20/2008 | EP1083676B1 Optical amplifier device | 
| 02/20/2008 | CN201025726Y Audio testing device for mobile phone | 
| 02/20/2008 | CN101127025A Signal transmitting device suitable for fast signal transmission | 
| 02/20/2008 | CN101127024A Signal transmitting device suitable for fast signal transmission | 
| 02/19/2008 | US7333826 Voice hub processing | 
| 02/19/2008 | US7333567 Digital detector utilizable in providing closed-loop gain control in a transmitter | 
| 02/19/2008 | US7333537 System for monitoring the quality of a communications channel with mirror receivers | 
| 02/19/2008 | US7333536 System and method for auto baud rate detection in asynchronous serial communication | 
| 02/19/2008 | US7333448 Full duplex transceiver | 
| 02/19/2008 | US7333447 Packet voice system with far-end echo cancellation | 
| 02/19/2008 | CA2202584C Method and apparatus for performing the register functions for a plurality of metering devices at a common node | 
| 02/14/2008 | WO2008018441A1 Power supply device and power line communication device | 
| 02/14/2008 | WO2008017274A1 Method and device for controlling line communication quality | 
| 02/14/2008 | WO2006087403A3 Device for the inductive coupling of a data-transmission unit to a phase of an electrical power line and corresponding production method | 
| 02/14/2008 | US20080037784 Power Line Communication Device and Method Of Using The Same | 
| 02/14/2008 | US20080037620 Method and apparatus for estimating a noise power for ofdm | 
| 02/14/2008 | US20080037619 Real time dynamic correlator | 
| 02/14/2008 | US20080037475 Data rate controller | 
| 02/14/2008 | US20080037451 Neutralization of acoustic echo cancellation in presence of signal clipping | 
| 02/14/2008 | US20080037238 Structure for electromagnetically shielding a substrate | 
| 02/13/2008 | EP1887708A1 Delayed adaptation structure for improved double-talk immunity in echo cancellation devices | 
| 02/13/2008 | EP1561291A4 Amplitude and phase matching for layered modulation reception | 
| 02/13/2008 | CN101123537A Method, system and management server for configuring coaxial cable carrier Ethernet terminal | 
| 02/13/2008 | CN101123453A Intelligent determination method for channel exchange test in frequency measurement | 
| 02/13/2008 | CN101123452A Delayed adaptation structure for improved double-talk immunity in echo cancellation devices | 
| 02/13/2008 | CN100369449C Termination device for telephone line | 
| 02/13/2008 | CN100369069C Method of translating and editing digital information using AC industry frequency power source | 
| 02/12/2008 | US7331004 Data storage system analyzer having self reset | 
| 02/12/2008 | US7330738 Apparatus and method for canceling residual echo in a mobile terminal of a mobile communication system | 
| 02/12/2008 | US7330694 Method for setting up route path through route discovery in a mobile ad hoc network using partial route discovery | 
| 02/12/2008 | US7330514 Methods and apparatus to mitigate cross-talk interference | 
| 02/12/2008 | US7330512 System and method for the data transmission of digital transmission data | 
| 02/12/2008 | US7330504 Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements | 
| 02/12/2008 | US7330129 System and method for data retrieval in AC power tools via an AC line cord | 
| 02/12/2008 | US7330068 Adjusting coefficients of a filter | 
| 02/12/2008 | CA2223316C Electric power supply management system | 
| 02/07/2008 | WO2008015316A1 High availability network system | 
| 02/07/2008 | US20080033266 Signal processing apparatus | 
| 02/07/2008 | US20080032623 System method for selecting repeaters | 
| 02/07/2008 | US20080031467 Echo reduction system | 
| 02/07/2008 | US20080031466 Multi-channel echo compensation system | 
| 02/07/2008 | US20080031367 Bypass device and method for a power line communications system | 
| 02/07/2008 | US20080031286 Multiplexed rf isolator | 
| 02/07/2008 | US20080031281 Method And Device For The Demodulation Of Satellite Radio Navigation Signals | 
| 02/07/2008 | US20080031165 RS-232 data through a half duplex differential link | 
| 02/07/2008 | US20080031143 Voice Over Internet Protocol (Voip) Quality Testing Over Hybrid Fiber/Coax (Hfc) Network | 
| 02/07/2008 | US20080030299 Household Appliance Control System | 
| 02/07/2008 | CA2659611A1 High availability network system | 
| 02/07/2008 | CA2596213A1 Leakage location methods | 
| 02/06/2008 | EP1884035A2 Extraction of can-bus-signals without feedback | 
| 02/06/2008 | EP1884034A1 Communication apparatus enabling coexistence of systems | 
| 02/06/2008 | EP1884033A1 Communication system comprising a powerline communication network and at least one other communication network, corresponding node | 
| 02/06/2008 | EP1884032A2 Systems and methods for facsimile echo cancellation | 
| 02/06/2008 | EP1884031A2 Pll with phase clipping and resynchronization | 
| 02/06/2008 | EP1883866A2 Power line communications interface and surge protector | 
| 02/06/2008 | EP0920744B1 Methods and apparatus for echo suppression | 
| 02/06/2008 | CN201018494Y Condenser type coupler internal structure | 
| 02/06/2008 | CN201018493Y Universal transmission device for narrowband power line communication | 
| 02/06/2008 | CN201018492Y Interface switching circuit for data transmission circuit | 
| 02/06/2008 | CN201018491Y Connecting structure for providing high speed broadband business in coaxial cable | 
| 02/06/2008 | CN101119137A Multi-core coaxial cable component open-closed circuit detector and detecting method | 
| 02/06/2008 | CN101119136A Method and device for obtaining essential parameter of circuit |