Patents
Patents for H04B 3 - Line transmission systems (31,523)
05/2006
05/10/2006EP1654832A1 Method for identifying a subscriber of a data network as a pilot master
05/10/2006EP1561226A4 Highly insulated inductive data couplers
05/10/2006EP1093609B1 Method and apparatus for digital subscriber loop qualification
05/10/2006CN1771683A System and method for preventing phantom data communication links
05/10/2006CN1771672A Power supply via data lines in local networks
05/10/2006CN1770971A Method of reducing electromagnetic interference and circuit connection device using the same
05/10/2006CN1255955C Device and method for testing central station of digital users' line transceiver set
05/10/2006CN1255943C 电力线噪声信号滤波器 Power line noise signal filter
05/09/2006US7043577 Auto-detecting universal appliance communication controller
05/09/2006US7043266 Method and system for selectively reducing call-setup latency through management of paging frequency
05/09/2006US7043034 Loudspeaker with single or dual channel input selector and lockout
05/09/2006US7042968 Efficient multipurpose code matched filter for wideband CDMA
05/09/2006US7042953 Method and arrangement for compensating signal echoes during duplex data transmission with discrete multitone modulation
05/09/2006US7042934 Crosstalk mitigation in a modem pool environment
05/09/2006US7042351 Data communication over a power line
05/09/2006US7042339 Plug-in single phase power line signal repeater with low voltage bus
05/09/2006US7042304 Circuit device for realizing a non-linear reactive elements scale network
05/09/2006US7042303 Energy conditioning circuit assembly
05/09/2006US7042229 System and method for on line monitoring of insulation condition for DC machines
05/04/2006WO2006047764A2 A method and apparatus for management of data on handheld
05/04/2006WO2006047440A2 Arrangement of inductive couplers for data communication
05/04/2006WO2006046215A1 Impedance monitoring system and method
05/04/2006WO2006028288B1 Equalizing filter circuit
05/04/2006WO2006007516A3 Limiting maximum gain in duplex communications devices including telephone sets
05/04/2006WO2005124477A3 Household appliance control system
05/04/2006US20060093154 Ultrasonic based parametric multivalve loudspeaker system
05/04/2006US20060092965 Information terminal and information terminal system
05/04/2006US20060092962 Local area network of serial intelligent cells
05/04/2006US20060091893 Process for the relative locating of two electrical appliances
05/04/2006DE19725710B4 Verfahren und Vorrichtung zur Leistungs- und Datenübermittlung auf gemeinsamen Leitungen Method and apparatus for power and data transmission on common lines
05/04/2006CA2584613A1 Impedance monitoring system and method
05/04/2006CA2583758A1 A method and apparatus for management of data on handheld devices
05/04/2006CA2583382A1 Arrangement of inductive couplers for data communication
05/03/2006EP1566049A4 Arrangement of an inductive coupler for power line communications
05/03/2006CN2777776Y Cable power indicator
05/03/2006CN2777662Y Integrated controller for power carrier communication network guest room
05/03/2006CN1768487A Packet communication between a collecting unit and a plurality of control devices over the power supply line
05/03/2006CN1254928C Adaptive non-linear echo compensator
05/02/2006US7039567 System identification method
05/02/2006US7039181 Consolidated voice activity detection and noise estimation
05/02/2006US7039123 Signal demodulation method and apparatus for reproducing data from received signal
05/02/2006US7039118 High speed communication system with a feedback synchronization loop
05/02/2006US7039020 Near-echo suppression
05/02/2006US7038730 Matched pulse shaping filter
05/02/2006US7038485 Terminating resistor device and a method for testing a terminating resistor circuit
05/01/2006CA2483439A1 Earphone/microphone adapter
04/2006
04/27/2006WO2006014902A3 Method of isolating data in a power line communications network
04/27/2006WO2006000796A3 Signalling method
04/27/2006US20060089549 Signal processing apparatus
04/27/2006DE69925628T2 Fir-filterstruktur mit geringer latenzzeit, zur andwendung bei gigabit-ethernet Fir filter structure with low latency time for gigabit ethernet with USAGE
04/26/2006EP1649612A2 Remote metering for power line communication system
04/26/2006EP1649611A1 Measuring adapter for simulating a low-voltage network that is coupled to a powerline data transmission device
04/26/2006EP1649610A1 Alien crosstalk suppression with enhanced patch cord
04/26/2006EP1649609A1 Method and device for reducing common mode signal in power line communication system
04/26/2006EP1370879A4 System and method for fault isolation for dsl loop extenders
04/26/2006EP1350381A4 Interfacing fiber optic data with electrical power systems
04/26/2006EP0927469B1 High speed communications system for analog subscriber connections
04/26/2006CN1765061A Power line terminating circuit and method, and power line relay device
04/26/2006CN1254074C Improved system and method for implementation of echo canceller
04/25/2006US7035591 Ceramic microelectromechanical structure
04/25/2006US7035586 Wireless interconnection method and assembly for establishing a bidirectional communication between audio and/or video devices
04/25/2006US7035415 Method and device for acoustic echo cancellation combined with adaptive beamforming
04/25/2006US7035398 Echo cancellation processing system
04/25/2006US7035357 Process and device for extracting digital data contained in a signal conveyed by an information transmission channel, in particular for a cellular mobile telephone
04/25/2006US7035325 Jitter measurement using mixed down topology
04/25/2006US7035312 Pilot signal cycling technique for a control system that reduces distortion produced by electrical circuits
04/25/2006US7035280 Local area network of serial intelligent cells
04/25/2006US7034899 Radio command device
04/25/2006US7034663 Preventing unintended communication among power line communication devices associated with different premises power distribution lines of an electric power distribution system
04/25/2006US7034662 Multi-function integrated automation cable system and method
04/25/2006US7034608 Correcting DC offsets in a multi-stage amplifier
04/25/2006US7034546 Method and apparatus for measuring insertion loss of a conductor
04/25/2006US7034545 Apparatus and method for monitoring transmission systems using off-frequency signals
04/20/2006WO2006041735A2 Reverberation removal
04/20/2006WO2006041650A1 Suppressing echo cancelling in packet switched network
04/20/2006WO2006041274A1 Computerised system for ordering taxi services and for monitoring the operation of a taxicab
04/20/2006WO2006041123A1 Speech device
04/20/2006WO2006040734A1 Echo cancellation
04/20/2006WO2006040435A1 Device and method for adjusting power spectral densities of a plurality of telecommunication lines
04/20/2006US20060083388 System and method for selectively switching between a plurality of audio channels
04/20/2006US20060082440 Shelf arrangement and shelf unit
04/20/2006US20060082219 Broadband coupler technique for electrical connection to power lines
04/20/2006DE102004047702A1 Method of determining estimation error of decisive slicer determining output value of data, dependent on input value, with estimation error characterising deviation of input from output allocated, rated input value
04/19/2006EP1648096A1 Electrical control systems
04/19/2006EP1647099A1 Transceiver and communication method for digital multi-carrier communication
04/19/2006EP1374511B1 Bi-directional communication system with echo cancelation
04/19/2006EP1312172B1 Method for transmitting high-frequency signals on low-voltage networks and corresponding system
04/19/2006CN2773794Y Adapter of household electrical appliances with wireless network
04/19/2006CN2773781Y Power supply of computer with power line telecommunication function
04/19/2006CN1762107A Modem coupling circuit for power-line carrier
04/19/2006CN1761284A Device and method for compensating degraded signal
04/19/2006CN1760927A System for controlling household light fixtures and appliances
04/19/2006CN1252658C Control and monitoring signal transmission system
04/19/2006CN1252478C Method for transmitting and storing value and value store electric power meter using the same
04/18/2006US7031658 System and method for single radio retransmission using a half duplex radio
04/18/2006US7031654 Repeater, mobile radio communication system, fault notification method for said repeater or said mobile radio communication system, and recording medium having, recorded thereon, fault notification program for said repeater or said mobile radio communication system
04/18/2006US7031476 Method and apparatus for intelligent speaker
04/18/2006US7031459 Echo canceller employing dual-H architecture having improved non-linear echo path detection
04/18/2006US7031446 Device for use in communication systems
04/18/2006US7031396 Transmission and reception method with multiple remote controllers