Patents
Patents for H04B 3 - Line transmission systems (31,523)
07/2001
07/12/2001CA2381314A1 Approach for processing data received from a communications channel in finite precision arithmetic applications
07/11/2001EP1115236A2 Equalization for multichannel receiving node
07/11/2001EP1115233A1 Reduced state channel equalising method using symbol-by-symbol decisions
07/11/2001EP1115215A2 Method and system for data communication
07/11/2001EP1114525A2 Arrangement and method for forming an overall signal, device and method for forming a current signal and a first communication signal, communication system and method for transmitting a first overall signal and a second overall signal
07/11/2001EP1114519A1 Interference detection and avoidance technique
07/11/2001EP0698317B1 A method and echo canceller for echo cancellation with a number of cascade-connected adaptive filters
07/11/2001CN1303180A Method of reducing echo and/or noise
07/11/2001CN1068488C Data receiving method for receiving data through predetermined clear zones of powerline
07/10/2001US6259900 Radio frequency signal folding-back transmitting/receiving circuit and radio transmitting/receiving apparatus for use therewith
07/10/2001US6259750 Digital phase reversal detector
07/10/2001US6259745 Integrated Gigabit Ethernet transmitter architecture
07/10/2001US6259729 Method of and an apparatus for training tap coefficients of an adaptive equalizer
07/10/2001US6259680 Method and apparatus for echo cancellation
07/10/2001US6259319 Adaptive gain and/or phase adjustment control system and method
07/10/2001US6259302 Gain control signal generator that tracks operating variations due to variations in manufacturing processes and operating conditions by tracking variations in DC biasing
07/10/2001US6259298 Method and an arrangement for adapting from a DC point of view a first circuit to at least one second circuit
07/10/2001US6259258 Method and test unit for far end crosstalk measurements
07/05/2001WO2001048971A1 Digital modem echo canceler enhancement
07/05/2001WO2001048939A2 Data allocation with imperfect time-domain equalisation
07/05/2001WO2001048516A2 Emi reduction for isolated bus systems
07/05/2001WO2001001665A3 Host-based speaker phone
07/05/2001WO2000076176A3 Loudspeaker volume range control
07/05/2001US20010006511 Process for coordinated echo- and/or noise reduction
07/05/2001US20010006510 DSL transmission system with far-end crosstalk cancellation
07/04/2001EP1113588A2 Echo canceling apparatus
07/04/2001CN2438277Y Building intercom receiving device capable of automatically filtering-off HF and LF interference
07/04/2001CN1302493A 通信装置以及通信方法 A communication apparatus and communication method
07/04/2001CN1302484A Double-talk detector, echo canceller using double-talk detection device and echo suppressor using double-talk detector
07/04/2001CN1302378A Method for transmitting and storing value and valve store electric power meter using the same
07/03/2001US6256384 Method and apparatus for cancelling echo originating from a mobile terminal
07/03/2001US6256383 IIR filter of adaptive balance circuit for long tail echo cancellation
07/03/2001US6256342 Method and regenerative filter for equalizing digitally transmitted signals
07/03/2001US6255967 Frame-based spectral shaping method and apparatus
07/03/2001US6255935 Coupling capacitor having an integrated connecting cable
07/03/2001US6255828 Interface for cable testing
07/03/2001CA2277658C Impedance compensation for a cable and connector
07/03/2001CA2179979C Method and apparatus for multiuser-interference reduction
07/03/2001CA2063800C Audio signal processor circuit
07/03/2001CA2008549C Information separation device
06/2001
06/28/2001WO2001047184A2 System and method for providing compatibility between different transceivers in a multi-pair communication system
06/28/2001WO2001047170A2 Method and apparatus for characterization of disturbers in communication systems
06/28/2001WO2001047143A1 Impulse response inferrer and propagation path inferring method
06/28/2001WO2001047138A2 Device for use in communication systems
06/28/2001WO2001047129A2 Method and system for controlling and exchanging data for multimedial appliances and an appliance suitable therefor
06/28/2001WO2001046953A1 Variable equalizer control system
06/28/2001US20010005402 Distortion compensating apparatus
06/28/2001US20010005395 DMT bit allocation with imperfect TEQ
06/28/2001DE19961644A1 Method to control or exchange data for multimedia devices, especially entertainment devices; involves using bus, over which activated devices transmit information inside predetermined time
06/28/2001DE19953347A1 Echokompensationsvorrichtung Echo compensation device
06/27/2001EP1111833A2 Transmission quality monitoring system with less delay
06/27/2001EP1111808A1 Method and apparatus for determining properties of a transmission channel
06/27/2001EP1111807A2 Line card apparatus and method for echo cancellation
06/27/2001EP1111806A2 Echo canceler and operating method
06/27/2001EP1110358A1 Digital equalising method, and radio communication receiver implementing said method
06/27/2001EP1110344A1 Combined channel coding and space-block coding in a multi-antenna arrangement
06/27/2001EP1110332A1 Scaled impedance replica for echo attenuation in digital transmission systems
06/27/2001CN1301419A Contact pair arrangement for an electric plug-and-socket connection in order to compensate near-end crosstalk
06/26/2001US6253345 System and method for trellis decoding in a multi-pair transceiver system
06/26/2001US6252918 Method and apparatus for digital symbol detection using medium response estimates
06/26/2001US6252904 High-speed decoder for a multi-pair gigabit transceiver
06/26/2001US6252903 Blind start-up of a dual mode CAP-QAM receiver
06/26/2001US6252755 Apparatus and method for implementing a home network using customer-premises power lines
06/21/2001WO2001045375A1 Real time processing and management method for canceling out the echo between a loudspeaker and a microphone of a computer terminal
06/21/2001WO2001045292A1 Method and system for compensating for signal echoes that occur in duplex data transmission during discrete multi-tone modulation
06/21/2001WO2001045291A1 A delay measurement system in a packet network
06/21/2001US20010004392 Arrangement for receiving a digital signal from a transmission medium
06/21/2001US20010004384 Waveform equalizer, mobile station wireless apparatus using the same, base station wireless apparatus using the same, and mobile communication system using the same
06/21/2001US20010004383 DSL transmission system with far-end crosstalk compensation
06/21/2001DE19960242C1 Verfahren und Anordnung zur Kompensation von Signalechos bei der Duplex-Datenübertragung bei der diskreten Multitonmodulation Method and apparatus for compensating signal echoes in the duplex data transmission in discrete multitone
06/21/2001DE19960051A1 Verfahren zur Echounterdrückung in einem Telekommunikationssystem und Echounterdrückungseinrichtung zur Durchführung des Verfahrens A method for echo cancellation in a telecommunication system and echo cancellation device for performing the method
06/21/2001DE10026928A1 Power line communication system using chimney approach has broadcast band used for establishing connections and synchronizing connected subscribers
06/21/2001DE10012235A1 Circuit for data transfer on power supply lines of electrical power supply network - with optocouplers to couple to power supply line, one in reception path and one in transmit path
06/20/2001EP1109421A2 Digital self-adapting graphic equalizer and method
06/20/2001EP1109332A2 A digital repeater
06/20/2001EP1109329A1 DSL transmission system with far-end crosstalk cancellation
06/20/2001EP1109328A1 DSL transmission system with far-end crosstalk compensation
06/20/2001CN1300498A A method and system for scaleable near-end speech cancellation for tip and ring tone signal detectors
06/20/2001CN1300478A Wide-band communication system
06/20/2001CN1300168A Digital transponder
06/20/2001CN1300155A Method for eliminating echo in telecommunication system and echo eliminator using said method
06/19/2001US6249544 System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system
06/19/2001US6249213 Method for transmitting information over an alternating current power line through a plurality of frequency orthogonal subchannels
06/14/2001WO2001043413A1 Echo canceller in a communication system at a terminal
06/14/2001WO2001043383A1 Method and apparatus for reliable reception of vdsl signals
06/14/2001WO2001043334A2 Voice gateway with downstream voice synchronization
06/14/2001WO2001043306A1 Assembly for transmitting a high frequency signal via a low-voltage power supply network
06/14/2001WO2001043305A1 Coupling device
06/14/2001WO2001043304A1 System and method for transmitting and receiving power and data using time division multiplex transmission
06/14/2001WO2001043303A2 Detection of bridged taps by frequency domain reflectometry
06/14/2001WO2001043238A1 Assembly for transmitting information via a low-voltage power supply network
06/14/2001US20010003705 Method of cancelling echoes in a telecommunications system and an echo canceller for the execution of the method
06/14/2001CA2394370A1 Echo canceller in a communication system at a terminal
06/14/2001CA2393165A1 Method and apparatus for reliable reception of vdsl signals
06/13/2001EP1107527A2 Monitoring of tap coefficients in a decision feedback equaliser
06/13/2001EP1107524A2 Channel estimation for communication system
06/13/2001EP1107485A2 Device for transmitting and receiving optical signals
06/13/2001EP1107464A1 Method and device for echo cancelling
06/13/2001EP1105947A1 System for transmitting messages via a low-voltage power supply network and adapter
06/13/2001EP0763298A4 Vehicle communications network transceiver, ground translation circuit therefor