| Patents for H04B 3 - Line transmission systems (31,523) |
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| 03/06/2002 | EP0962031B1 Frequency signal equalizing device, specially for a satellite communications facility |
| 03/06/2002 | CN2481065Y Single sampler for power line transmission |
| 03/06/2002 | CN1338857A Acoustic controlled switching system and method |
| 03/06/2002 | CN1080507C Feeding unbalance detector in repeated line |
| 03/06/2002 | CN1080506C 回波消除器 Echo canceller |
| 03/05/2002 | US6353631 Quadrature amplitude modulation signal demodulation circuit having improved interference detection circuit |
| 03/05/2002 | US6353628 Apparatus, method and system having reduced power consumption in a multi-carrier wireline environment |
| 02/28/2002 | WO2002017509A1 Method for transmitting high-frequency signals to low-frequency networks and corresponding system |
| 02/28/2002 | WO2002017488A1 Partitioned block frequency domain adaptive filter |
| 02/28/2002 | WO2002017487A1 Partioned block frequency domain adaptive filter |
| 02/28/2002 | WO2001043303A3 Detection of bridged taps by frequency domain reflectometry |
| 02/28/2002 | US20020025702 Two-wire type wiring case |
| 02/28/2002 | US20020024996 Dynamic regulation of power consumption of a high-speed communication system |
| 02/28/2002 | US20020024426 Device controller and control arrangement |
| 02/28/2002 | US20020024424 Civil defense alert system and method using power line communication |
| 02/28/2002 | US20020024423 System and method for communication via power lines using ultra-short pulses |
| 02/28/2002 | US20020024381 Power efficient line driver with 4X supply voltage swing and active termination |
| 02/27/2002 | EP1182791A2 Radio communication |
| 02/27/2002 | EP1181781A1 Method of forming channel estimate, and receiver |
| 02/27/2002 | EP1181771A1 Broadcast transmission system with distributed correction |
| 02/27/2002 | EP1181567A1 Detection of bridge tap using frequency domain analysis |
| 02/27/2002 | CN2479684Y House distributing module |
| 02/27/2002 | CN1338178A Network for telephony and data communication |
| 02/27/2002 | CN1338161A Receiver for smoothing channel estimates using spectral estimation |
| 02/27/2002 | CN1338158A Echo and distortion caucellation arrangement |
| 02/27/2002 | CN1338149A Low-power programmable digital filter |
| 02/27/2002 | CN1337788A Echo-eliminating method and apparatus thereof |
| 02/27/2002 | CN1080066C Measuring rod for uplink band in CATV transmission network |
| 02/27/2002 | CN1080037C Echo Removing system |
| 02/27/2002 | CN1080030C Improved ADSL compatible discrete multi-tone apparatus |
| 02/26/2002 | US6351532 Echo canceler employing multiple step gains |
| 02/26/2002 | US6351531 Method and system for controlling echo cancellation using zero echo path, ringing, and off-hook detection |
| 02/26/2002 | US6351457 Method of and apparatus for identifying unknown system |
| 02/26/2002 | CA2246865C Nonlinear processor for acoustic echo canceller |
| 02/21/2002 | WO2002015426A1 Wire communication device, wire communication apparatus, wire communication method, and wire communication system |
| 02/21/2002 | WO2002015413A2 Power line communication system |
| 02/21/2002 | WO2002014882A1 Method and device for measuring a line attenuation |
| 02/21/2002 | US20020022467 Wireless communication apparatus for communicating between terminals in a wireless network |
| 02/21/2002 | US20020022456 Radio communication apparatus |
| 02/21/2002 | US20020021798 Voice switching system and voice switching method |
| 02/21/2002 | US20020021209 Power transfer apparatus for concurrently transmitting data and power over data wires |
| 02/21/2002 | DE10039187A1 Drahtfreie digitale Datenübertragungsstrecke Wire-free digital data transmission path |
| 02/21/2002 | DE10037996A1 Elektronisches Gerät, insbesondere Feldgerät Electronic device, in particular field device |
| 02/21/2002 | CA2419079A1 Method and device for measuring a line attenuation |
| 02/21/2002 | CA2355471A1 Radio communication apparatus |
| 02/20/2002 | EP1180892A2 Voice switching system and voice switching method |
| 02/20/2002 | EP1180884A2 QAM receiver with gain control, dc-offset correction, and passband equalisation |
| 02/20/2002 | EP1180299A1 Apparatus and method for detecting far end speech |
| 02/20/2002 | CN1336737A Method and system for processing orthogonal frequency-division multiplex singal |
| 02/20/2002 | CN1336732A Information transfer device |
| 02/19/2002 | US6349130 Method to pre-qualify copper loops for ADSL service |
| 02/19/2002 | US6349112 Adaptive equalizer compensating signal distortion on transmission path |
| 02/19/2002 | US6349111 Circuit for allocating a transmission channel on the electric network |
| 02/19/2002 | US6348876 Burst QAM downhole telemetry system |
| 02/19/2002 | CA2119986C Measuring-while-drilling telemetry apparatus and method |
| 02/14/2002 | WO2002013406A1 Communication system and communication method using power lines |
| 02/14/2002 | WO2002013405A2 Systems and methods for characterizing transmission lines in a multi-carrier dsl environment |
| 02/14/2002 | WO2002013160A2 Electronic device, especially a field device |
| 02/14/2002 | US20020019172 Anti-crosstalk connector |
| 02/14/2002 | US20020018526 Data transmission system of directional coupling type using forward wave and reflection wave |
| 02/14/2002 | DE10037489A1 Transmission-line failure detector for communication system has frequency decision circuits which judge failure of transmission lines depending on generation frequency of mismatching detection signals |
| 02/14/2002 | DE10036682A1 System for level matching between circuit modules has an interface circuit between modules with low pass circuit with potential divider for matching first module's output level to other module |
| 02/14/2002 | CA2789759A1 Systems and methods for characterizing transmission lines using broadband signals in a multi-carrier dsl environment |
| 02/13/2002 | EP1179935A1 Channel delay spread adaptive equalization and decoding |
| 02/13/2002 | EP1179934A1 Adaptive turbo-equalization |
| 02/13/2002 | EP1179933A2 Wireless, digital data connection |
| 02/13/2002 | EP1179228A1 A data communication device |
| 02/13/2002 | EP1179226A1 Reception method and receiver for mobile radiotelephone applications |
| 02/13/2002 | EP0972356B1 Combined parallel adaptive equalizer/echo canceller |
| 02/13/2002 | EP0656590B1 Measuring device to test the connection between at least two subassemblies |
| 02/12/2002 | US6347141 Method of and apparatus for adaptation of an echo canceller in a system with multitasking |
| 02/12/2002 | US6347140 Echo canceling method and apparatus |
| 02/12/2002 | US6346875 GHM aggregator |
| 02/12/2002 | US6346853 Predistortion linearizer circuit |
| 02/12/2002 | CA2101431C Bus coupler |
| 02/07/2002 | WO2002011370A1 Communication method and communication system |
| 02/07/2002 | WO2002011369A1 Apparatus and method of loop and rate dependent power cutback |
| 02/07/2002 | WO2002011367A2 A local area network system including a wall switch device and/or a power outlet device and methods for using the same |
| 02/07/2002 | WO2002011266A2 Wall switch device and power outlet device in combination with a charging station |
| 02/07/2002 | WO2002011265A2 Device docking apparatus and method for using the same |
| 02/07/2002 | WO2001084806A3 Method and system for adapting a telephone line modem for use on the power line |
| 02/07/2002 | WO2001080441A3 Digital communications utilizing medium voltage power distribution lines |
| 02/07/2002 | US20020015500 Method and device for acoustic echo cancellation combined with adaptive beamforming |
| 02/07/2002 | US20020015488 Method of echo cancellation and equipment of echo cancellation |
| 02/07/2002 | US20020015482 Method and apparatus for connecting broadband voice and data signals to telephone systems |
| 02/07/2002 | US20020015200 System and method for monitoring and characterizing optical links |
| 02/07/2002 | US20020014884 Open type electricity meter |
| 02/06/2002 | EP1178642A2 Symbol timing recovery in a multicarrier receiver |
| 02/06/2002 | EP1178616A1 Electricity meter and power line communication system |
| 02/06/2002 | EP1177682A1 A status monitoring and data processing system suitable for use in a bi-directional communication device |
| 02/06/2002 | EP1177618A1 Means and method for increasing performance of interference-suppression based receivers |
| 02/06/2002 | CN1078983C Fractionally spaced equalizing circuits and method |
| 02/05/2002 | US6345076 Receiver for a digital transmission system |
| 02/05/2002 | US6345070 Modem |
| 02/05/2002 | US6344756 Echo cancellation circuit for a Bi-directional current mode link |
| 02/05/2002 | CA2272012C Communication plug having low complementary crosstalk delay |
| 02/05/2002 | CA2223666C Power distribution grid communication system |
| 01/31/2002 | WO2002009462A1 Method for the assembly of a mobile radio network base station and connection of the base station to the network |
| 01/31/2002 | WO2002009317A1 Radio receiving device and radio receiving method |
| 01/31/2002 | WO2002009305A2 Method and apparatus for processing a modulated signal using an equalizer and a rake receiver |