Patents
Patents for H04B 3 - Line transmission systems (31,523)
04/2001
04/03/2001US6212658 Method for the correction of a message in an installation
04/03/2001US6212402 System connector
04/03/2001US6212374 Disabling of echo cancelers after call startup
04/03/2001US6212225 Startup protocol for high throughput communications systems
04/03/2001US6212170 Method for managing status and dual information of clock distributor
04/03/2001US6212119 Dynamic register with low clock rate testing capability
04/03/2001US6211985 Remote monitoring of an optical transmission system using line monitoring signals
04/03/2001US6211749 Impedance matching device
04/03/2001CA2241829C Non-invasive powerline communications system
04/03/2001CA2197262C Shared hybrid fiber-coax network having reduced ingress noise
04/03/2001CA2167940C Method and apparatus for echo cancelling with double-talk immunity
03/2001
03/29/2001WO2001022710A2 Voice and data exchange over a packet based network
03/29/2001WO2001022635A1 Communication method and communication device
03/29/2001WO2001022615A1 Network connection
03/29/2001WO2001022614A1 A coding communication method
03/29/2001WO2001022613A1 A method of remote control and communication by ac lines
03/29/2001WO2001022612A1 Control of echo cancellers in a telecommunications system
03/29/2001WO2001022601A2 Echo cancelling process with improved phase control
03/29/2001WO2001022380A1 Asynchronous power line transmission apparatus
03/29/2001WO2000074350A3 Adaptability to multiple hands-free communication accessories
03/29/2001DE19934334C1 Verfahren zum Betreiben von zur Energieverteilung vorgesehenen Niederspannungsnetzen zur Datenübertragung, zugehörige Schaltung und Anordnung mit einer solchen Schaltung Methods of operating laid down for energy distribution low voltage networks for data transmission, and associated circuit arrangement with such a circuit
03/29/2001CA2349164A1 Method and device for communication
03/28/2001EP1086571A1 A method and system for scaleable near-end speech cancellation for tip and ring tone signal detectors
03/28/2001EP1086379A1 Method for transmitting and storing value and value store electric power meter using the same
03/28/2001CN1289508A Generating calibration signals for an adaptive beamformer
03/28/2001CN1289200A Remote-control communication method utilizing AC lines
03/28/2001CN1289195A Network coupling device
03/28/2001CN1289187A Encoding communication method
03/28/2001CN1289186A Network for data and energy transmision
03/28/2001CN1289120A Adaptive amplitude-limiting equalizer for mask CD read-out signal
03/27/2001CA2174366C Subband echo cancellation method using projection algorithm
03/22/2001WO2001020840A1 Equalising method in receivers using a combination of multiple carrier and code division multiple access modulating techniques
03/22/2001WO2001020804A1 Measuring the perceptual quality of speech signals including echo disturbances
03/22/2001WO2000019767A3 Line terminator unit for a subscriber line
03/22/2001DE19944919A1 Communication in aerial ropeway having mechanically supportive- and tractive cables, employs electromagnetic signal coupling into either cable
03/22/2001DE19941858A1 Bussystem und Betriebsverfahren Bus system and method of operation
03/22/2001DE19937505A1 Empfangsverfahren und Empfängeranordnung für ein Duplex-Übertragungssystem Receiving method and receiver arrangement for a duplex transmission system
03/21/2001EP1085674A1 Network for data and power transmission
03/21/2001EP1085673A1 Coupling network
03/21/2001EP1085672A2 Method and system for minimising crosstalk
03/21/2001EP1084463A1 Apparatus and method for reducing energy fluctuations in a portable data device
03/21/2001CN1288625A Method and apparatus for tracking the characteristics of a channel
03/21/2001CN1288615A Method for setting up echo suppression device in communication links with automatic machines
03/21/2001CN1288301A Echo suppressor, echo suppression method using normalization minimum mean-square calculation
03/21/2001CN1288172A Optical amplification device, optical emitting device, optical transfering system and optical amplification method
03/20/2001US6205220 Method to mitigate the near-far fext problem
03/20/2001US6205218 Extended feedback circuit for impedance matching and voltage isolation
03/20/2001US6205202 Subscriber line tester
03/20/2001CA2021617C Feedforward predistortion linearizer
03/15/2001WO2001019033A1 Bus system and operating method
03/15/2001DE19960471A1 Netzwerk zur Daten- und Energieübertragung Network for data and power transmission
03/15/2001DE19960470A1 Netzwerkkoppler Network coupler
03/14/2001EP1083720A2 Multicarrier transmission
03/14/2001EP1083719A2 Multicarrier transmission with adaptive allocation of reference symbols
03/14/2001EP1083676A1 Optical amplifier
03/14/2001EP1083675A2 Automatic gain control apparatus determining echo return loss
03/14/2001EP1082822A1 Signalling method and apparatus
03/14/2001EP1082617A1 Method for detecting the position of defective shielding of a coaxial cable or connector in a coaxial cable network
03/14/2001CN1287739A Communication device and method
03/13/2001US6201866 Echo canceler employing segment-based reinitialization
03/13/2001US6201842 Device and method for detecting PCM upstream digital impairments in a communication network
03/13/2001US6201840 Method and apparatus for detecting data in magnetic recording using decision feedback
03/13/2001US6201831 Demodulator for a multi-pair gigabit transceiver
03/13/2001US6201796 Startup protocol for high throughput communications systems
03/13/2001US6201795 Method and apparatus for mitigating interference in a communication system
03/13/2001US6201620 Test method for a network element of an optical communication system and network element therefor with test module
03/13/2001CA2162571C Echo canceler and method for learning for the same
03/08/2001WO2000072556A9 System and method for near-end talker detection by spectrum analysis
03/08/2001WO2000072488A8 Digital subscriber's line transmitting method and device
03/08/2001DE10029388A1 Appliance and method for signal separation and suitable recording medium employs adaptive filter
03/07/2001EP1081985A2 Microphone array processing system for noisly multipath environments
03/07/2001EP1081924A2 Single-ended subscriber loop qualification for xDSL service
03/07/2001EP1081908A2 Signal processing without muliplication in receivers for digital signals
03/07/2001EP1081907A1 Windowing and frequency-domain equalisation in multicarrier receivers
03/07/2001EP1081905A2 Equalisation in an ADSL receiver
03/07/2001EP1081883A2 System and method for boosting and monitoring
03/07/2001EP1081874A1 Hybrid circuit for transmission and reception
03/07/2001EP1081873A1 Asymmetric transformer for a telephone line
03/07/2001EP1081719A1 Cable
03/07/2001EP1080548A1 Combined analog/digital data transmission system
03/07/2001EP1080518A1 Contact pair arrangement for an electric plug-and-socket connection in order to compensate near-end crosstalk
03/07/2001EP0793875B1 Transmission system using time dependent filter banks
03/07/2001CN1286863A Method and apparatus for improved echo suppression in communications systems
03/07/2001CN1286862A Method and apparatus for providing comfort noise in communications system
03/07/2001CN1286860A Communication device and method
03/07/2001CN1286536A Communication system over data network of digitalized power transmission lines
03/07/2001CN1286535A Digital echo eliminator
03/06/2001US6198819 Echo canceller having improved non-linear processor
03/06/2001US6198778 Method and device for setup of clipping noise of a multicarrier modulation
03/06/2001US6198292 Crosstalk test unit and method of calibration
03/01/2001WO2001015402A1 Method and apparatus for reducing peak to average power ratio in digital broadcasting systems
03/01/2001WO2001015334A1 Coupling stage for a data transmission system for low voltage networks
03/01/2001WO2001015333A1 Two-wire four-wire converting circuit for communication device
03/01/2001DE19949390A1 Verfahren und Vorrichtung zur Kommunikation über elektrische Energieversorgungsleitungen Method and device for communication over electrical power lines
03/01/2001DE19940544A1 Einkoppelstufe für ein Datenübertragungssystem für Niederspannungsnetze Einkoppelstufe for a data transmission system for low-voltage networks
02/2001
02/28/2001EP1079538A1 Coupling device with integrated plug contact for coupling a data transmission device with the phase in power line network
02/28/2001EP1079536A2 Wired spread spectrum communication apparatus and communication method
02/28/2001EP1079517A2 Adaptive gain and/or phase adjustment control system and method
02/28/2001EP1078520A1 Data processing device
02/28/2001EP1078474A2 Echo cancellation in digital data transmission system