Patents
Patents for H04B 3 - Line transmission systems (31,523)
08/2007
08/23/2007US20070195719 Local area network of serial intelligent cells
08/23/2007CA2642347A1 Point-to-multipoint high data rate delivery systems from optical node in hfc systems over existing and advanced coaxial network
08/23/2007CA2549918A1 Connector for communications systems having contact pin arrangement and compensation for improved performance
08/22/2007EP1820285A1 Communications connector with floating wiring board for imparting crosstalk compenastion between conductors
08/22/2007EP1820284A1 Communications jack with compensation for differential to differential and differential to common mode crosstalk
08/22/2007EP1820283A2 Apparatus and method for boosting sound in a denta-mandibular sound-transmitting entertainment toothbrush
08/22/2007EP1820168A2 Power line communication system with automated meter reading
08/22/2007EP1514369B1 Receiver signal strength indication
08/22/2007EP1428000A4 Apparatus for testing aramid fiber elevator cables
08/22/2007EP1040633A4 Echo canceller employing dual-h architecture having variable adaptive gain settings
08/22/2007CN2938582Y Digital user line simulator
08/22/2007CN1333233C Two wire output/power mechanism for remote devices
08/22/2007CN101022290A Electric communication network
08/21/2007US7260753 Methods and apparatus for providing test access to asynchronous circuits and systems
08/21/2007US7260155 Method and apparatus for encoding and decoding digital communications data
08/21/2007US7260152 Method and device for injecting a noise signal into a paired wire communication link
08/21/2007US7260145 Method and systems for analyzing the quality of high-speed signals
08/21/2007US7260143 Tuner for use in cable modem and cable modem including the tuner
08/21/2007US7260065 Data communication apparatus
08/21/2007US7259929 Device and signal processing circuit for magnetic recording, magnetic recording apparatus
08/21/2007US7259482 Distance extender and method making use of same
08/21/2007CA2424276C Method and apparatus for signal integrity verification
08/21/2007CA2384902C Communication method between a master node and slave nodes and communication system employing a master node and slave nodes
08/21/2007CA2307845C Echo canceller employing dual-h architecture having improved coefficient transfer
08/16/2007WO2007092298A1 Method and apparatus for detection and prevention of crosstalk in a multiple tuner receiver
08/16/2007WO2007091655A1 Externally-acquired information power line communication system, data transmission device, data reception device, power line communication method, and power line communication program
08/16/2007WO2007091363A1 Adaptive digital filter and receiver
08/16/2007WO2007090597A1 Method for monitoring and/or controlling or regulating the voltage of at least one cell group in a cellular composite of an energy accumulator
08/16/2007WO2007067125A3 Echo detection
08/16/2007US20070190934 Apparatus and method for selecting relay mode of relay station in multihop relay broadband wireless communication system
08/16/2007US20070190933 Bandwidth efficient HARQ scheme in relay network
08/16/2007US20070190932 Method and system for detecting messages using enhanced distributed signaling
08/16/2007US20070189548 Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
08/16/2007US20070189374 Concurrent process for blind deconvolution of digital signals
08/16/2007US20070189372 Asynchronous digital data capture
08/16/2007US20070189334 Multi-carrier communication system
08/16/2007US20070189149 OFDM radio communications system
08/16/2007DE102006007073A1 Remote current supply method for use in e.g. Internet television, involves examining transferred detection value with comparison value, where comparison value considers magnitude of current based on testing instruction
08/15/2007EP1819098A1 Method and device for testing transmission loss of communication line
08/15/2007EP1817850A2 Method and apparatus for waking a person
08/15/2007EP1817847A2 System and method of echo cancellation
08/15/2007EP1413106B1 Software definable block adaptive decision feedback equalizer
08/15/2007EP1287672B1 Method and device for acoustic echo cancellation combined with adaptive beamforming
08/15/2007CN2935638Y Self-carrying device with signal connection terminal
08/15/2007CN1332561C Matched pulse shaping filter
08/15/2007CN101019338A Suppressing echo cancelling in packet switched network
08/15/2007CN101019333A Interference cancellation system
08/15/2007CN101018245A Filter coefficient setting device, filter coefficient setting method, and program
08/14/2007US7257644 Systems and methods for providing presence tracking in a distributed computing system
08/14/2007US7257368 Content distribution system, method for distributing content and computer program thereof
08/14/2007US7257222 Ring voltage generation circuit and method for generating a ring voltage
08/14/2007US7257181 Method and apparatus for channel equalization
08/14/2007US7257166 Data communication apparatus and method based on orthogonal frequency division multiple access
08/14/2007US7257128 Master-slave data transmission in orthogonal frequency-division multiplexing
08/14/2007US7257125 Quality of service half-duplex media access controller
08/14/2007US7256662 Common mode signal suppressing circuit and normal mode signal suppressing circuit
08/09/2007WO2007089987A2 Method for abruptly stopping a linear vibration motor in portable communication device
08/09/2007WO2007089294A1 A radio frequency signal coupler, coupling system and method
08/09/2007WO2007089189A1 Non-intrusive signal quality assessment
08/09/2007WO2007089173A1 A method and a system for cable or subscriber loop investigation performing loop topology identification
08/09/2007WO2007087996A1 System, device and method
08/09/2007WO2007087826A1 Method and a system for providing connectivity of a moving object to a external network
08/09/2007US20070186256 Method and system for a low cost wireless telephone link for a set top box
08/09/2007US20070185693 System estimation method and program, recording medium, and system estimation device
08/09/2007US20070183540 Multi-pair gigabit ethernet transceiver having adaptive disabling of circuit elements
08/09/2007US20070183460 Method for establishing a user of a data network as a pilot master
08/09/2007US20070183447 Local area network of serial intelligent cells
08/09/2007US20070183301 Method and apparatus to reduce crosstalk in a mimo communication system
08/09/2007US20070183133 Mains wire antenna for wireless interface applications
08/09/2007US20070183131 Mirror image shielding structure
08/08/2007EP1816755A2 Circuit arrangement for the transmission of data signals from and/or to houshold appliances
08/08/2007EP1815607A1 Crosstalk reducing conductor and contact configuration in a communication system
08/08/2007EP1815311A1 Ethernet-to-analog controller
08/08/2007EP1625668A4 Multiple channel interference cancellation
08/08/2007EP1351408B1 Digital point-to-multipoint data transmission system on an electric network
08/08/2007EP1142155B1 Signalling method and telecommunication system
08/08/2007CN2932838Y Indoor power line network transmission device
08/08/2007CN2932836Y 网路连接器 Internet Connector
08/08/2007CN1331149C Phase frequency comparing equipment
08/08/2007CN101015180A Link extender
08/08/2007CN101015134A Method of obtaining spectral voids in the transmission of signals over the electric network
08/08/2007CN101015133A Communication terminal with echo canceller and its echo canceling method
08/07/2007US7254511 Method and apparatus for calibrating a frequency domain reflectometer
08/07/2007US7254433 Signal processing apparatus
08/07/2007US7254217 Fault characterization using information indicative of echo
08/07/2007US7254200 System and method for frequency burst detection for GSM/GPRS
08/07/2007US7254193 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence
08/07/2007US7254181 Transmitting apparatus and method, receiving apparatus and method, and transmitting and receiving apparatus and method
08/07/2007US7254177 Architecture for a digital subscriber line analog front end
08/07/2007US7254170 Noise and channel estimation using low spreading factors
08/07/2007US7254168 Method for decomposing timing jitter on arbitrary serial data sequences
08/07/2007US7254167 Constellation-multiplexed transmitter and receiver
08/07/2007US7254120 Data rate controller
08/07/2007US7254116 Method and apparatus for transceiver noise reduction in a frame-based communications network
08/07/2007CA2385751C Detecting faults in subscriber telephone lines
08/07/2007CA2302256C Predistortion linearizer circuit
08/02/2007US20070178942 Method for abruptly stopping a linear vibration motor in portable communication device
08/02/2007US20070178831 Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program
08/02/2007US20070178829 Broadcast signal receiving system
08/02/2007US20070177697 Combined channel coding and space-block coding in a multi-antenna arrangement