Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
03/2003
03/26/2003EP1295404A2 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts
03/26/2003EP1295271A2 Burst qam downhole telemetry system
03/26/2003EP0920755B1 Improvements in, or relating to, multi-carrier transmission systems
03/26/2003EP0770286B1 Method and device for transmitting information between a plurality of local units connected to different electricity distribution networks
03/26/2003EP0708537B1 Echo canceler and echo path estimating method
03/26/2003CN1405991A Echo treatment apparatus
03/26/2003CN1405988A Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in network system
03/26/2003CN1405987A Single-double-path modulation and demodulation method, and singl-double-path modem thereof
03/26/2003CN1404794A Wide-band transmission dynamic electrocardiograph
03/25/2003US6539356 Signal encoding and decoding method with electronic watermarking
03/25/2003US6538865 Fault-detecting device for communication system
03/25/2003US6538524 Using electrically lossy transmission systems to reduce computer RF emissions
03/25/2003US6538500 Power efficient line driver with 4X supply voltage swing and active termination
03/25/2003US6538451 Single ended measurement method and system for determining subscriber loop make up
03/25/2003CA2330876C Methods and apparatus for verifying transmit power levels in a signal point limited transmission system
03/20/2003WO2003023991A1 Power line communications apparatus and method
03/20/2003WO2003023990A1 Line interface circuit for power line communication
03/20/2003WO2003023989A1 Equalizer system
03/20/2003WO2003005598A9 Single ended line probing in dsl system using transformerless hybrid
03/20/2003WO2002078239A3 Method and apparatus for transmission line analysis
03/20/2003WO2002042916A3 Data bus
03/20/2003WO2001095557A3 Method and apparatus for medium access control in powerline communication network systems
03/20/2003US20030056159 Transmission characteristic compensation scheme
03/20/2003US20030055923 Method for detecting and regulating identifier overlap on power line communication network, electronic appliance connected to subnet of power line commmunication network, and communication module used in electronic appliance
03/20/2003US20030055922 Subnet of power line communication network, method for setting up the same, electronic appliance connected to the same, and communication module used in electronic appliance
03/20/2003US20030055518 Digital mixing system with double arrangement for fail safe
03/20/2003US20030054793 Coupling between power line and customer in power line communication system
03/20/2003US20030053637 Audio distributor
03/20/2003US20030053618 Synchronization of echo cancellers in a voice processing system
03/20/2003US20030053534 Transmit amplitude independent adaptive equalizer
03/20/2003US20030053531 Startup protocol for high throughput communications systems
03/20/2003US20030053526 Parallel interference cancellation receiver for multiuser detection of CDMA signals
03/20/2003US20030053477 Method for joining node into subnet of power line communication network, electronic appliance connected to subnet, and communication module used in electronic appliance
03/20/2003US20030053165 Method for measuring transmission loss in optical transmission line for test, and slave station, master station, and optical communication system using the method
03/20/2003US20030052771 Supply line structure for transmitting information between motor-vehicle components
03/20/2003US20030052770 Fire system implemented with power line communications
03/20/2003US20030052693 Analyzer sensor
03/20/2003US20030052345 Semiconductor apparatus capable of preventing occurrence of multiple reflection, driving method, and setting method thereof
03/19/2003EP1294115A2 Transmission characteristic compensation scheme
03/19/2003EP1294113A2 Branching unit for an optical transmission system
03/19/2003EP1294105A1 Method and coupling circuit for data transmission system in three phase power line
03/19/2003EP1293049A1 Circuit arrangement for the suppression of analogue echoes
03/19/2003CN2540706Y Twisted-pair wire remote transmission power, image duplex channel device
03/19/2003CN1404232A Echo eliminator and echo path estimating method
03/19/2003CN1103532C Equalizing method and equalizer using reference signal and improved high-clarity TV
03/18/2003US6535604 Voice-switching device and method for multiple receivers
03/18/2003US6535552 Fast training of equalizers in discrete multi-tone (DMT) systems
03/18/2003US6534997 Apparatus and a method for locating a fault of a transmission line
03/13/2003WO2003021930A1 Powerline bridge apparatus
03/13/2003WO2003021195A1 Two wire output/power mechanism for remote devices
03/13/2003WO2002065606A3 Energy pathway arrangements for energy conditioning
03/13/2003US20030048858 Method of reconstructing data transmitted over a transmission path in a receiver and corresponding device
03/13/2003US20030048839 Training of equalisers, for use with signals of differing data rates
03/13/2003US20030048837 Transmission apparatus, transmission level correcting method and transmission control program
03/13/2003US20030048514 Branching unit for an optical transmission system
03/13/2003US20030048152 Power line communications apparatus and method
03/13/2003DE10063538C1 Verfahren zur Datenübertragung in Wechselstromnetzen Method for data transmission in AC networks
03/12/2003EP1292060A2 Data transmission with a signalling subchannel
03/12/2003EP1292045A2 Analyzer sensor
03/12/2003EP1290842A2 Adaptive precoding
03/12/2003EP1290841A2 Method and apparatus for transmitting data with reduced coupling noise
03/12/2003EP1290816A1 Method of extracting a signal
03/12/2003EP1290811A2 Method and apparatus for dual-band modulation in powerline communication network systems
03/12/2003EP1290810A2 Sliced bandwidth distortion prediction
03/12/2003CN1402924A Power efficient equalization
03/12/2003CN1402912A Method and system for compensating for signal echoes that occur in duplex data transmission during discrete multi-tone modulation
03/12/2003CN1402504A Subband echo location and talking lap detection of communication system
03/12/2003CN1402439A Method and device for encoding and decoding on AC
03/12/2003CN1402438A Cable up signal base band transmission method
03/12/2003CN1402350A Semiconductor capable of preventing generating multiple reflection, and driving and setting method
03/11/2003US6532289 Method and device for echo suppression
03/11/2003US6532280 Integrated circuit card for computer communication
03/11/2003US6532277 Method for controlling DSL transmission power
03/11/2003US6532268 Receiving apparatus and transmitting/receiving system
03/11/2003US6532260 Pulse transmission device for use in long-distance communication
03/11/2003US6532215 Device and method for network communications and diagnostics
03/11/2003US6531931 Circuit and method for equalization of signals received over a communication system transmission line
03/11/2003US6531879 Method and apparatus for delay-line time-domain reflectometry
03/06/2003WO2003019891A1 Monitoring upstream frequency band
03/06/2003WO2003019889A2 Data reconstruction in a receiver
03/06/2003WO2003019888A2 Adaptive equalizer for use over a range of data rates
03/06/2003WO2003019810A2 Adaptive equaliser for reducing distortion in a communication channel
03/06/2003WO2003019734A1 High data rate interconnecting device
03/06/2003WO2003019424A2 Insertion of repeaters without timing constraints
03/06/2003WO2002039684A3 Method and circuit for pre-emphasis equalization in high speed data communications
03/06/2003US20030045970 Signaling over noisy channels
03/06/2003US20030045170 Adaptor; controller and plug receptacle for electronic device
03/06/2003US20030043999 Echo canceller having improved non-linear processor
03/06/2003US20030043900 Adaptive equaliser for reducing distortion in communication channel
03/06/2003US20030043897 Adaptive equalizer with large data rate range
03/06/2003US20030043028 Home network system
03/06/2003US20030043027 Repeater amplifier with signal firewall protection for power line carrier communication networks
03/06/2003CA2458356A1 High data rate interconnecting device
03/06/2003CA2457045A1 Monitoring upstream frequency band
03/05/2003EP1289217A1 Method and Device for communication using alternative current half-waves
03/05/2003EP1289165A2 Packet communication method of powerline communication system
03/05/2003EP1289164A1 Power line structure for communicating informations between vehicle components
03/05/2003EP1288078A2 Supply line structure for power supply of electrical components in a vehicle
03/05/2003EP1287672A2 Method and device for acoustic echo cancellation combined with adaptive beamforming
03/05/2003EP1287620A1 Method and system for power line null detection and automatic frequency and gain control
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