Patents
Patents for H04B 3 - Line transmission systems (31,523)
04/2002
04/30/2002US6381248 Network architecture uses mini-fiber node and mini-coaxial node technologies to provide bi-directional broadband communications
04/30/2002US6381224 Method and apparatus for controlling a full-duplex communication system
04/30/2002US6381064 Method for gain equalization, and device and system for use in carrying out the method
04/30/2002US6379175 Fixture for controlling the trajectory of wires to reduce crosstalk
04/25/2002WO2002033941A1 Method and apparatus for testing voice and data lines in a telecommunication system
04/25/2002WO2002033843A1 Driver circuit
04/25/2002WO2002033842A2 Transformerless interface for modem
04/25/2002WO2001056185A3 Battery injection and loop supervision for DSL environment
04/25/2002US20020048368 Method and apparatus for medium access control in powerline communication network systems
04/25/2002US20020048265 Transceiver circuit including an echo canceller
04/25/2002US20020048062 Wavelength division multiplexing optical communication system and wavelength division multiplexing optical communication method
04/24/2002EP1198935A1 Remote power system for wireless network adapter utilizing unused wire pairs in ethernet network cable
04/24/2002EP1198898A1 Oscillating circuit assembly for a centralised telecontrol audio frequency for a multiphase supply grid
04/24/2002EP1198897A1 Crest factor compensated driver
04/24/2002EP1198890A2 Method for generating reliability information for the decoding channel of a radio receiver and corresponding radio receiver
04/24/2002CN1346547A Approximated MMSE-based channel estimator in a mobile communication system
04/24/2002CN1346214A Intelligent equalized splitter
04/24/2002CN1346041A 网络热水器 Network heaters
04/24/2002CN1083646C Data access arrangement having improved transmit-receive separation
04/23/2002US6378107 Digital signal reproducing apparatus
04/23/2002US6377683 Low complexity frequency domain echo canceller for DMT transceivers
04/23/2002US6377682 Robust adaptive filter for use in acoustic and network echo cancellation
04/23/2002US6377393 Optical amplifier apparatus, optical transmission apparatus equipped with break point detecting function using optical amplifier apparatus, and bidirectional optical transmission apparatus
04/23/2002US6377163 Power line communication circuit
04/23/2002CA2229073C Ground skew protection method and apparatus
04/23/2002CA2225407C Assessment of signal quality
04/18/2002WO2002032005A1 Method of implementing a repeater, and a transceiver unit
04/18/2002WO2001048516A3 Emi reduction for isolated bus systems
04/18/2002US20020045993 Point of use digital electric energy apparatus with wireless communication port
04/18/2002US20020045992 Point of use digital electric energy apparatus and method for measuring out-of-specification energy
04/18/2002US20020044666 Echo suppression device and method for performing the same
04/18/2002US20020044075 Wireless digital data-transmission path
04/18/2002US20020043960 Wall switch device and power outlet device
04/18/2002DE10051007A1 Current network information system contg. user's points with consumption counter
04/18/2002DE10048348A1 Synchronization of powerline communications systems involves PLC devices involved in system to be synchronized activating transmission mode, generating PLC signals asymmetrically
04/17/2002EP1198112A2 Method of measuring and improving xDSL transmission characteristics
04/17/2002EP1197012A1 Interface circuit for surge impedance
04/17/2002EP1197011A1 Power line communication system
04/17/2002EP1197010A1 Module for connection and testing of high frequency transmission lines
04/17/2002EP1157498A4 Digital modem echo canceler enhancement
04/17/2002CN2487170Y Intelligent controller for house
04/17/2002CN2487158Y Fixed structure improvement for adjustable monitor
04/17/2002CN2487157Y Household intelligent wiring system terminal
04/17/2002CN1345126A Power line carrier communicator
04/17/2002CN1345124A Channel estimation sequence and method for estimating transmission channel using such channel estimation sequence
04/17/2002CN1083195C Termination network and control circuit
04/17/2002CN1083179C Method and apparatus for interfacing between twisted pair and intelligent cell
04/16/2002US6374083 Apparatus, and associated method, for selectively modifying characteristics of the receive signal received at a receiving station
04/16/2002US6373908 Adaptive electronic transmission signal cancellation apparatus for full duplex communication
04/16/2002US6373900 Multi-pair transceiver decoder system with low computation slicer
04/16/2002US6373377 Power supply with digital data coupling for power-line networking
04/16/2002US6373375 Method for data transmission in a vehicle
04/16/2002CA2196480C Soft decision decoder
04/16/2002CA2192610C Central node converter for local network having single coaxial cable
04/13/2002CA2342483A1 Method and apparatus for distributing electric power
04/11/2002WO2002030003A2 Power line networking apparatus and method
04/11/2002WO2002030002A1 Method and apparatus for signal integrity verification
04/11/2002WO2002029983A2 A data-efficient and self adapting imaging spectrometry method and an apparatus thereof
04/11/2002WO2002029751A2 Power supply architecture for power-line networking
04/11/2002WO2001067550A3 Guides for rf magnetic flux
04/11/2002US20020042684 Point of use digital electric energy apparatus with uninterruptible telephone communication
04/11/2002US20020042683 Point of use digital electric energy apparatus with real-time dual channel metering
04/11/2002US20020041678 Method and apparatus for integrated echo cancellation and noise reduction for fixed subscriber terminals
04/11/2002US20020041657 Method for controlling dsl transmission power
04/11/2002US20020041656 Method of measuring and improving XDSL transmission characteristic
04/11/2002US20020041642 Process and device for extracting digital data contained in a signal conveyed by an information transmission channel, in particular for a cellular mobile telephone
04/11/2002US20020041636 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation
04/11/2002US20020041565 Crosstalk identification for spectrum management in broadband telecommunications systems
04/11/2002US20020041433 Method for gain equalization, and device and system for use in carrying out the method
04/11/2002US20020041228 Apparatus for power line computer network system
04/11/2002DE10047244A1 Telephone line data transmission system, employs two frequency bands of which the lower is bidirectional and the upper is unidirectional
04/10/2002EP1195941A1 Communication method and communication system
04/10/2002EP1195033A2 Equalization with dc-offset compensation
04/10/2002EP1195032A1 Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel
04/10/2002EP1195021A2 Phy control module for a multi-pair gigabit transceiver
04/10/2002EP1194858A1 Data transmission system
04/10/2002EP1194678A1 Data transmission in pipeline systems
04/10/2002EP1021867B1 Coupling communications signals to a power line
04/10/2002EP0988711B1 Cable length estimation circuit using data signal edge rate detection and analog to digital conversion
04/10/2002EP0932959B1 Distributed serial control system
04/10/2002CN2485871Y Terminal box of broadband network
04/10/2002CN2485870Y Wire winder with charger
04/10/2002CN2485869Y Electric door controller with intercom for building with double buses
04/10/2002CN2485868Y Universal channel scheduling array platform and channel share assignor
04/10/2002CN1344478A Line terminator unit for subscriber line
04/10/2002CN1344070A Method for combining data signals with RF signals and transmitting then over cable of cable TV
04/09/2002US6370245 Full duplex communication circuits with bilateral T hybrid and balanced impedance configurations
04/09/2002US6370191 Efficient implementation of error approximation in blind equalization of data communications
04/09/2002US6369718 Oil well monitoring and control system communication network
04/09/2002US6369699 Single-cable transmission device for signals and power supply of a surveillance system
04/09/2002CA2250641C Echo cancellation in the network for data applications
04/04/2002WO2002027963A1 System for displaying price information of products on display stand using electrical cable communication
04/04/2002WO2002027334A1 Point of use digital electric energy measurement, control and monitoring apparatus
04/04/2002WO2001090828A3 Ac power line signalling system
04/04/2002WO2001080435A3 Power line communication network
04/04/2002US20020039415 Noise level calculator for echo canceller
04/04/2002US20020039414 Acoustic echo canceler and handsfree telephone set
04/04/2002US20020039028 Noncontact signal analyzer
04/04/2002DE10046636A1 Störkompensatorvorrichtung Störkompensatorvorrichtung
04/04/2002DE10044638A1 Vorichtung zum elektrischen Verbinden einer Datenanschlussleitung mit einer Niederspannungs-Energieversorgungsleitung Vorichtung for electrically connecting a data cable connection with a low-voltage power supply line