Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
10/2005
10/12/2005EP1543215A4 System and method for data retrieval in ac power tools via an ac line cord
10/12/2005CN1682464A Method for controlling activation of an electromechanical actuator
10/12/2005CN1682463A Installation for distributing digital signals
10/12/2005CN1682006A System and method for data retrieval in AC power tools via an AC line cord
10/12/2005CN1223166C Methods and apparatus for improving sub-band adaptive filtering in echo cancellation systems
10/12/2005CN1223152C Intelligent home control bus
10/12/2005CN1223109C Enhancement of near-end voice signals in an echo suppression system
10/12/2005CN1223108C Echo canceling method and echo canceller
10/11/2005US6954509 Method for channel equalization
10/11/2005US6954490 Fully integrated ethernet transmitter architecture with interpolating filtering
10/11/2005US6954421 Orthogonal frequency division multiplexing receiver device
10/11/2005CA2251887C Radio frequency noise canceller
10/06/2005WO2005094052A1 High speed multiple loop dsl system
10/06/2005WO2005093963A1 Circuit arrangement and method for dimensioning a network
10/06/2005WO2005093765A1 An inductive coupler
10/06/2005WO2005091980A2 Coaxial communication active tap device and distribution system
10/06/2005US20050222831 System and method for automatic selection of transmission line macromodels
10/06/2005US20050221840 Mobile device and mobile device system therefor
10/06/2005US20050221678 Methods and systems for compensating for alien crosstalk between connectors
10/06/2005US20050220313 Howling frequency component emphasis method and apparatus
10/06/2005US20050220292 Method of discriminating between double-talk state and single-talk state
10/06/2005US20050220237 Method and arrangement for sampling
10/06/2005US20050220220 Slicing algorithm for multi-level modulation equalizing schemes
10/06/2005US20050220182 Phase comparison circuit and clock recovery circuit
10/06/2005US20050220043 Echo cancellation
10/06/2005US20050220004 Repeater for power line communication system
10/06/2005US20050219072 Data transmission system and cable
10/06/2005US20050219006 Differential transmission circuit and common mode choke coil
10/06/2005US20050218905 Device for detecting interferences or interruptions of the inner fields smoothing layer of medium or high voltage cables
10/06/2005DE102004061510A1 Jitter testing device for electronic device e.g. deserializer, has determination unit that determines whether electronic device is defective, by detecting bit error in output signal from electronic device
10/06/2005CA2561009A1 High speed multiple loop dsl system
10/05/2005EP1583305A2 Differential transmission circuit and common mode choke coil
10/05/2005EP1583214A2 Apparatus for operating a positioning system
10/05/2005EP1582001A1 Device for data exchange between a transmitter and a receiver
10/05/2005CN1679289A Frequency-domain equalizing of single carrier signal
10/05/2005CN1678129A Howling frequency component emphasis method and apparatus
10/05/2005CN1677888A Differential transmission circuit and common mode choke coil
10/05/2005CN1677450A Sensor cable and amplifier-separated type sensor with the cable
10/04/2005US6952472 Dynamically estimating echo return loss in a communication link
10/04/2005US6952159 Coupling device
09/2005
09/30/2005CA2501980A1 Method of discriminating between double-talk state and single-talk state
09/29/2005WO2005091583A1 Channel equalization
09/29/2005WO2005091522A1 System and method to overcome a degradation in a radiating transmission line
09/29/2005WO2005091521A1 Balanced transmission system
09/29/2005WO2005091520A1 Control device for a residual echo limiter
09/29/2005WO2005091519A1 Voice speaking device
09/29/2005WO2005091003A1 System and method for high voltage testing of twisted insulated conductors
09/29/2005WO2005089064A2 Line sensor selection for quantifying alien crosstalk in a shared communications medium
09/29/2005WO2005089048A2 Telephony event management system and method in a communications network
09/29/2005US20050215277 System and method to facilitate overcoming a degradation in transmission through a radiating transmission line communication system
09/29/2005US20050215006 Method for fabricating semiconductor device
09/29/2005US20050213874 Power line communication system and method
09/29/2005US20050213777 Systems and methods for separating multiple sources using directional filtering
09/29/2005US20050213775 Sound source transmitting device
09/29/2005US20050213749 Automatic adjustment system, automatic adjustment device, and automatic adjustment method
09/29/2005US20050213748 Line extender for high speed modem data transfer
09/29/2005US20050213685 Distortion compensator
09/29/2005US20050213684 Methods for propagating a non sinusoidal signal without distortion in dispersive lossy media
09/29/2005US20050213672 Current mode transmitter
09/29/2005US20050213647 Flexible power line modem
09/29/2005US20050212688 Power line communication based supplemental service meter gateway and casing structure thereof, power line communication system and method using same
09/29/2005DE19781047B4 Filter-Coprozessor und Entzerrer in einem Empfänger eines drahtlosen Kommunikationssystems, bei dem dieser Filter-Coprozessor eingesetzt wird Filter co-processor and equalizer in a receiver of a wireless communication system in which this filter is used coprocessor
09/29/2005DE102004010874A1 Verfahren und Vorrichtung zum Ermitteln von Übertragungsparametern Method and apparatus for determining transmission parameters
09/28/2005EP1579671A2 Capacitive coupler for power line communications
09/28/2005EP1579669A2 A power line communication apparatus and method of using same
09/28/2005EP1579668A2 A power line communication system and method of operating the same
09/28/2005EP1579667A2 Controlling power output of a modem for power line communications
09/28/2005EP1579592A1 Electronic transmission system and method for transmitting data signals
09/28/2005EP1261974B1 In-well monitoring and flow control system
09/28/2005CN1675916A Method and apparatus for attaching power line communications to customer premises
09/28/2005CN1675837A Method and apparatus for channel equalization
09/28/2005CN1675834A Common mode signal suppressing circuit and normal mode signal suppressing circuit
09/28/2005CN1674458A Testing method for digital user line and local side wideband equipment
09/28/2005CN1674164A Device for detecting interferences or interruptions of the inner fields smoothing layer of medium or high voltage cables
09/28/2005CN1221084C Method of forming channel estimate, and receiver
09/28/2005CN1221083C Receiver for multiuser detection of CDMA signals
09/27/2005US6950842 Echo canceller having an adaptive filter with a dynamically adjustable step size
09/27/2005US6950567 Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
09/27/2005US6950513 Impulse response setting method for the 2-channel echo canceling filter, a two-channel echo canceller, and a two-way 2-channel voice transmission device
09/27/2005US6950460 Multichannel transceiver of digital signals over power lines
09/27/2005US6950010 Method, system and apparatuses for the transmission of data on electric network
09/27/2005US6950007 Method and device for monitoring enablement of an electrical apparatus connected to a power grid
09/27/2005US6949933 Apparatus and method for monitoring electrical cable chafing via optical waveguides
09/27/2005CA2413984C Burst qam downhole telemetry system
09/22/2005WO2005088858A1 High frequency bypass unit
09/22/2005WO2005088857A2 Coupling circuit for a carrier current data transmission system interface
09/22/2005WO2005086757A2 Spectrally flexible band plans with reduced filtering requirements
09/22/2005WO2005086630A2 Reduced complexity transmission line and waveguide fault tester
09/22/2005WO2005078995A3 Cable diagnostics for 10gbase-t transceivers
09/22/2005WO2005071860A3 Method and system for interfacing an item of equipment having electrical power distribution line carrier currents, and a device
09/22/2005WO2005043317A3 System and method for adjusting soft decision thresholds in a soft-decision error correction system
09/22/2005WO2005029803A3 Multicarrier communication method, system and apparatus
09/22/2005US20050210529 Coaxial communication active tap device and distribution system
09/22/2005US20050210298 Method for controlling a plurality of units networked to give a network, and network comprising a plurality of networked units
09/22/2005US20050209517 Signal processing apparatus
09/22/2005US20050208902 Signal transmission circuit, signal output circuit and termination method of signal transmission circuit
09/22/2005US20050208838 Method and apparatus for transmitting data with reduced coupling noise
09/22/2005US20050208825 Integrated connector for powerline network and power supply
09/22/2005US20050207589 Hypersonic transducer
09/22/2005US20050207588 Focused hypersonic communication
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