Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
08/2003
08/20/2003CN1118955C Method for setting up echo suppression device in communication links with automatic equipment
08/20/2003CN1118954C Filter arrangement structure
08/19/2003US6609204 Method and apparatus for locking/unlocking via platform management bus
08/19/2003US6609011 Radio communication system, communication terminal apparatus, base station apparatus, and radio communication equalizing method
08/19/2003US6608903 Sound field reproducing method and apparatus for the same
08/19/2003US6608488 Apparatus for high voltage testing of insulated conductors and oscillator circuit for use with same
08/19/2003CA2335224C Acoustic echo canceller
08/19/2003CA2316514C Crosstalk elimination method and system
08/19/2003CA2256564C Method and apparatus for integrating telephone and broadband networks
08/14/2003WO2003067858A1 Signal ended lopp loss measurement by frequency domain reflectometry-based signal processing
08/14/2003WO2003067782A1 Improvement to methods of taking echometric measurements on a line and the device for carrying out same
08/14/2003WO2003067781A1 Method and system for reducing latency when initiating real-time media sessions
08/14/2003WO2003065785A2 Method and apparatus for concatenating and piggybacking data packets
08/14/2003US20030152180 Method and device for controlling the timing of a digital receiver
08/14/2003US20030152176 Method and system for joint decision feedback equalization and complementary code key decoding using a trellis
08/14/2003US20030152159 Communication method, communication system, transmitter, and receiver
08/14/2003US20030152144 Signal circulation for adaptive signal equalization in digital communication systems
08/14/2003US20030152141 Data Communications
08/14/2003US20030151842 Adaptive equalizing circuit and regenerative device using it, and adaptive equalizing method
08/14/2003US20030151521 Optical submarine communication system
08/14/2003US20030151491 Method and device for monitoring enablement of an electrical apparatus connected to a power grid
08/13/2003EP1335501A1 Method for power line communication and coupling apparatus
08/13/2003EP1334593A2 Method and circuit for pre-emphasis equalization in high speed data communications
08/13/2003EP1334572A2 Method and apparatus for reducing transmission power in a high data rate system
08/13/2003EP1334570A2 Managed hdsl repeater
08/13/2003EP0878087A4 Non-invasive powerline communications system
08/13/2003CN2566536Y Electric power route deivce
08/13/2003CN1118179C Echo removing apparatus
08/13/2003CN1118148C Non-linearity-caused distortion compensating system
08/13/2003CN1118144C Spread spectrum communication transceiver using three-phase power transmission lines of low-voltage distribution network
08/12/2003US6606719 Method and arrangement to estimate transmission channel characteristics
08/12/2003US6606382 System and method for implementation of an echo canceller
08/12/2003US6606028 Apparatus and method for supervision
08/12/2003US6606013 Equalizing device for cable distribution network
08/07/2003WO2003065636A1 Zipper dmt system and method for measuring timing advance using the system
08/07/2003WO2003065611A1 Transmitting and receiving apparatus, radio communication system, and transmitting and receiving method
08/07/2003WO2003065597A2 High frequency network multiplexed communications over various lines using multiple modulated carrier frequencies
08/07/2003WO2003065412A2 Dielectric loss compensation methods and apparatus
08/07/2003WO2003030396A3 Method for operating a transmission system and transmission system in an energy supply network
08/07/2003WO2003030393A3 Method and transmission device for recognizing the transmit mode of transmission devices connected to power supply lines
08/07/2003US20030149784 Transosing a bi-directional s2m data stream for transmission via a low-voltage network
08/07/2003US20030148747 Radio base station
08/07/2003US20030147526 Adaptive cancellation network system and method for digital subscriber line
08/07/2003US20030147508 Technique for estimation of a subscriber line insertion loss
08/07/2003US20030147483 Clock control circuit for controlling the clock phase of a transceiver
08/07/2003US20030147456 Frequency offset estimator
08/07/2003US20030147411 Method and apparatus for concatenating and piggybacking data packets
08/07/2003US20030147359 Long-distance network transmission structure and associated device
08/07/2003US20030147355 Switchable hybrid design for asymmetric digital subscriber line
08/07/2003US20030146801 Guides for rf magnetic flux
08/06/2003EP1333610A2 Clock control loop for controlling the clock phase of a transceiver
08/06/2003EP1333593A1 Power line transmission technical
08/06/2003EP1333592A1 Method for estimating Echo Return Loss in a communication Link
08/06/2003EP1333591A1 DSL modem and method for reducing transmit echo therein
08/06/2003EP1332566A1 Method for avoiding communication collisions between co-existing plc systems on using a physical transmission medium common to all plc systems and arrangement for carrying out said method
08/06/2003CN1434618A Module block type terminal receviver for data transmission system capable of adjusting near-end crosstalk
08/06/2003CN1434577A 电力线通信装置 Power line communication device
08/06/2003CN1434576A Improved communication scheme suppressing leakage electromagnetic fields
08/05/2003US6603827 Method and apparatus for digital symbol detection using medium response estimates
08/05/2003US6603587 Optical amplifier repeater
08/05/2003CA2317554C Device and method for detecting pcm upstream digital impairments in a communication network
08/05/2003CA2197110C Device and process for transmitting information in a radiating waveguide system
08/05/2003CA2135918C Power line coupler modem device for communication over electrical lines
07/2003
07/31/2003WO2003063459A2 Power line communication system combining high bitrate and low bitrate transmissions
07/31/2003WO2003063382A1 Antenna device
07/31/2003WO2003063381A1 Coupling device
07/31/2003WO2003063380A2 Method of and system for power line carrier communications
07/31/2003WO2003063372A2 Crosstalk mitigation in a modem pool environment
07/31/2003WO2003036932A8 Coupling between power line and customer in power line communication system
07/31/2003US20030145075 Diagnostics and network provisioning tool for bi-directional communication devices
07/31/2003US20030143955 Communication system monitor
07/31/2003US20030143945 Electromagnetic field communications system for wireless networks
07/31/2003US20030142759 Transmission system for reduction of amateur radio interference
07/31/2003US20030142736 Apparatus for handling high speed data communication signals and method for manufacture thereof
07/31/2003US20030142688 Power efficient line driver with high performance echo cancellation for 1000BASE-T
07/31/2003US20030142378 Apparatus for optical communications
07/31/2003US20030142031 External seizure mechanism for RF node connector
07/31/2003US20030141949 Signal transmission on a coaxial cable
07/31/2003US20030141942 Dielectric loss compensation methods and apparatus
07/30/2003EP1331765A1 Polling communication system and polling control method
07/30/2003EP1331749A1 Multiple signal transmission on a coaxial cable
07/30/2003EP1331744A1 Power line communication apparatus
07/30/2003EP1331704A1 Connector for communication system with reduced cross-talk
07/30/2003EP0988712B1 Data transmission over a power line communications system
07/30/2003CN2563845Y Leakage communication life saving safe rope
07/30/2003CN1433619A Equalization with DC-offset compensation
07/30/2003CN1433618A Method for channel equalisation
07/30/2003CN1433196A Polling communication system and polling control method
07/30/2003CN1433160A Method of compensating drift of transmission signal reference line and relevant circuit
07/30/2003CN1433159A Echo channel estimating device and method suitable for asymmetrical digital user's end loop
07/30/2003CN1433154A 设备数据收集系统 Device Data collection system
07/30/2003CN1116754C Method for transmitting multi-carrier signal in data transmitting system and multi-carrier transmitter
07/30/2003CN1116744C System and method for avoiding false convergence in the presence of tones in time-domain echo cancellation process
07/30/2003CN1116736C Double-side band pilot technology for distorted control system generated from reducing circuit
07/29/2003US6600794 Method and device for nonlinear maximum likelihood sequence estimation by removing non-linear inter-symbol-interference (ISI) from a received signal
07/29/2003US6600791 Receiver and signal transmission system
07/29/2003US6600775 Adaptive reference pattern for spread spectrum detection claims
07/29/2003US6600727 Distributed network repeater system
07/29/2003US6600643 Submarine cable branching unit with double-coil relays
07/29/2003CA2292310C A system and method for allocating overhead voltage in the transmission of pots and xdsl signals
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