Patents
Patents for H04B 3 - Line transmission systems (31,523)
12/2005
12/29/2005WO2005125037A1 Voice over internet protocol (voip) quality testing over hybrid fiber/coax (hfc) network
12/29/2005WO2005124784A1 Method and apparatus for control of personal digital media devices using a vehicle audio system
12/29/2005WO2005124477A2 Household appliance control system
12/29/2005WO2005032160A3 Interference cancellation receiver for high-speed communication systems
12/29/2005US20050286714 Echo canceling apparatus, telephone set using the same, and echo canceling method
12/29/2005US20050286710 Broadband XDSL transceiver
12/29/2005US20050286668 Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements
12/29/2005US20050286645 Coaxial cable communications systems and apparatus employing single and multiple sinewave modulation and demodulation techniques
12/29/2005US20050286644 Adaptive filter architecture with efficient use of voltage-to-current converters
12/29/2005US20050286550 Method for transmitting line signals via a line device, and transmission apparatus
12/29/2005US20050286509 Audio/video network interface
12/29/2005US20050285720 Power line communication apparatus and method of using the same
12/29/2005US20050285715 "Match" controlled container
12/29/2005US20050285693 Common mode signal suppressing circuit and normal mode signal suppressing circuit
12/29/2005DE102004030566A1 Heating device for a vehicle seat comprises an operating unit arranged on a connecting element which extends from a support
12/29/2005DE102004027367A1 Verfahren zum Übertragen von Leitungssignalen über eine Leitungseinrichtung und Übertragungsvorrichtung A method for transmitting signals via a cable conduit means and transfer device
12/29/2005DE10112816B4 Verfahren zum schnellen passiven Einmessen von Transceivern auf ihr Übertragungsmedium Method for rapid calibration of passive transceivers on their transmission medium
12/28/2005EP1610488A1 Phase comparison circuit and clock recovery circuit
12/28/2005EP1609250A1 Packet communication between a collecting unit and a plurality of control devices over the power supply line
12/28/2005EP1222778B1 Method for the transmission of signals in a bus system, superposed on a direct supply voltage
12/28/2005EP0913043B1 Blind dfe and phase correction
12/28/2005CN1714562A Arrangement of an inductive coupler for power line communications
12/28/2005CN1714517A Receiver system and method for reduced swing differential clock
12/28/2005CN1714453A Method for fabricating semiconductor device
12/28/2005CN1713541A Power line communication signal superimposing method
12/27/2005US6980588 Apparatus for handling high speed data communication signals and method for manufacture thereof
12/27/2005US6980528 Voice and data exchange over a packet based network with comfort noise generation
12/27/2005US6980091 Power line communication system and method of operating the same
12/27/2005US6980089 Non-intrusive coupling to shielded power cable
12/27/2005US6979774 Cable modem module and transmitter-receiver
12/22/2005WO2005122424A1 Communication system
12/22/2005WO2005122423A2 Spread spectrum isolator
12/22/2005WO2005121773A1 Method for correcting the influence of signal transmission lines on changes of signal transit times when conducting ultrasonic measurements
12/22/2005WO2005088857A3 Coupling circuit for a carrier current data transmission system interface
12/22/2005US20050282490 Enhanced method of transferring data from a data originating device to a mobile terminal
12/22/2005US20050281415 Microphone array processing system for noisy multipath environments
12/22/2005US20050281414 Method and apparatus for control of personal digital media devices using a vehicle audio system
12/22/2005US20050281413 Parametric audio system for operation in a saturated air medium
12/22/2005US20050281326 Transceiver apparatus and method having ethernet-over-power and power-over-ethernet capability
12/22/2005US20050280559 Method and device for emitting pulses on an electricity distribution network
12/22/2005DE4426841B4 Signalübertragungseinrichtung Signal transmission device
12/22/2005DE19850279B4 Verfahren für die Übertragung von Signalen zwischen einer ersten Funkstation und einer zweiten Funkstation und Funkstation Procedures for the transmission of signals between a first radio station and a second radio station and radio station
12/22/2005DE19848588B4 Nichtlinearer Prozessor für akustische Echokompensatoren Nonlinear acoustic echo cancellers processor
12/22/2005DE19525382B4 Verfahren zur Steuerung der Schrittweite eines Echokompensators mit adaptivem Filter Method for controlling the step size of an echo canceller with an adaptive filter
12/22/2005DE102005014993A1 Korrektur von Verlust und Streuung bei Kabelfehlermessungen Correction of loss and scattering in cable fault finding
12/22/2005DE102004026468A1 Datenübertragung auf Stromversorgungsleitungen Data transmission on power supply lines
12/22/2005DE102004025425A1 Schaltung zur Reduktion von Störsignalen auf der symmetrischen Teilnehmeranschlussleitung durch Nebensprechen Circuit to reduce noise at the balanced subscriber line by crosstalk
12/22/2005CA2569839A1 Method for correcting the influence of signal transmission lines on changes of signal transit times when conducting ultrasonic measurements
12/21/2005EP1608119A2 System and method for actively terminating a transmission line
12/21/2005EP1608095A2 Digital subscriber line transmission method, apparatus and system employing synchronous processing
12/21/2005EP1606946A1 Method and modem for data communication in cable television networks
12/21/2005EP1444819B1 Method and system for classifying network connections
12/21/2005EP1256184A4 Method and apparatus for the control of modem transmit power
12/21/2005EP0929945B1 Echo path delay estimation
12/21/2005CN2747787Y Multifunctional speech interphone
12/21/2005CN1711704A Digital filter circuit and method for blocking a transmission line reflection signal
12/21/2005CN1710820A Two-wive system double-signal transmitting loudspeaker detection control circuit in public broadcasting system
12/20/2005US6978015 Method and apparatus for cooperative diagnosis of impairments and mitigation of disturbers in communication systems
12/20/2005US6978012 Echo cancellation using a variable offset comparator
12/20/2005US6977958 Differentially-driven loop extender
12/20/2005US6977884 Transmitting apparatus, receiving apparatus, communication system, transmission method, reception method, and communication method
12/20/2005US6977720 Characterization of active and passive optical properties of an optical device
12/20/2005US6977578 Method of isolating data in a power line communications network
12/20/2005US6977509 System and method for high voltage testing of twisted insulated conductors
12/15/2005WO2005119930A2 Low cost heated clothing manufacturing fro conductive loaded resin-based materials
12/15/2005WO2005119921A2 Ultra-wideband communication through a wire medium
12/15/2005WO2005118059A2 Two-wire power and communications for irrigation systems
12/15/2005WO2005057834A3 Plug-in network appliance
12/15/2005WO2005008902A3 A power line communication system and method of operating the same
12/15/2005US20050276411 Interaction between echo canceller and packet voice processing
12/15/2005US20050276342 Architecture for a digital subscriber line analog front end
12/15/2005US20050276321 Circuit for PLL-based at-speed scan testing
12/15/2005US20050275508 Handheld electronic device including vibrator having different vibration intensities and method for vibrating a handheld electronic device
12/15/2005US20050275495 Power line coupling device and method of using the same
12/15/2005US20050275412 Cable power indicator
12/15/2005DE102004025056A1 Secure access guaranteeing method for shared medium network e.g. domestic power line involves checking data transmissions for exclusion of non assigned IP addresses
12/15/2005DE102004024823A1 Verfahren zur Verringerung eines Rechenaufwands in nichtlinearen Filteranordnungen sowie entsprechende Filteranordnungen A method for reducing computational complexity in a non-linear filter assemblies and filter assemblies corresponding
12/14/2005EP1605656A2 Digital subcriber line communicating system
12/14/2005EP1605655A2 Upstream power cutback
12/14/2005EP1605620A1 Digital subscriber line transmission method, apparatus and system using training
12/14/2005EP1605603A1 Local audiovisual distribution with PLC
12/14/2005EP1183848B1 System and method for near-end talker detection by spectrum analysis
12/14/2005EP0927467B1 Circuit configuration for adapting a multispeed modem to a line and adaptation method thereof
12/14/2005CN2746661Y Line structure
12/14/2005CN1708920A ECHO cancellation device with mobile crosstalk control
12/14/2005CN1708074A Method for transmitting line signal via line equipment and transmitting equipment
12/14/2005CN1707969A Transmission line driver
12/14/2005CN1707968A Transmission impedance distribution cable
12/14/2005CN1707859A Cross-talk improvement for high frequency by frequency dependent effective capacity
12/14/2005CN1232048C Echo removing apparatus
12/14/2005CN1232047C Self-adaptive equalizer circuit
12/13/2005US6975722 Dual echo canceller with fast reflector identification
12/13/2005US6975678 Apparatus and averaging method for equalizing signals
12/13/2005US6975677 Digital communication device
12/13/2005US6975240 Electronic alert response system
12/13/2005US6975212 Method and apparatus for attaching power line communications to customer premises
12/13/2005US6975211 Control apparatus and control method for managing communications between multiple electrical appliances through a household power line network
12/13/2005US6975210 Arrangement of an inductive coupler for power line communications
12/13/2005US6975209 In-line power tap device for Ethernet data signal
12/08/2005WO2005117384A2 Multicarrier communication apparatus, system and method with reduced radiation power