Patents for H04B 3 - Line transmission systems (31,523) |
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04/04/2002 | DE10044088A1 Model railway vehicle decoupling arrangement transmits electrical energy and data on same conductors |
04/03/2002 | EP1193958A1 Metallic testing of a subscriber loop that provides both voice and digital subscriber line services |
04/03/2002 | EP1193931A2 Adaptive equalization in a receiver of serial data |
04/03/2002 | EP1193930A1 Sequence for channel estimation and method for estimating a transmission channel which uses such a sequence for channel estimation |
04/03/2002 | EP1193890A2 Method and apparatus for line transmission diagnostic of a bus system |
04/03/2002 | EP1192794A1 Method and apparatus for combining voice line card and xdsl line card functions |
04/03/2002 | EP1192788A2 Predicting performance of telephone lines for data services |
04/03/2002 | EP1192775A1 Training of equalisers, for use with signals of differing data rates |
04/03/2002 | EP1192730A1 Identification system for monitoring the presence/absence of members of a defined set |
04/03/2002 | EP1192729A2 Pure delay estimation |
04/03/2002 | EP0763280B1 Signal processing device |
04/03/2002 | EP0654191B1 Apparatus and methods employing distribution preserving tomlinson precoding in transmission of digital data signals |
04/03/2002 | CN1343396A Adaptive channel equalizer |
04/03/2002 | CN1343387A Closed loop calibration for amplitude reconstruction amplifier |
04/03/2002 | CN1343079A Method and device for moving feedback signal of RF repeater |
04/03/2002 | CN1082282C Household signal transmission system |
04/02/2002 | US6366618 Method and apparatus providing high quality high level signals using low voltage integrated circuit drivers by summing partial signal currents and magnetomotive forces |
04/02/2002 | US6366612 Automatic equalizer |
04/02/2002 | US6366381 Remote monitoring of an optical transmission system using line monitoring signals |
04/02/2002 | US6366379 Remote control device of acousto-optic tunable filter and optical transmission system containing equalizer using acousto-optic tunable filter and optical transmission system containing optical add/drop multiplexer using acousto-optic tunable filter |
04/02/2002 | CA2266945C High speed encoder and encoding method |
04/02/2002 | CA2266904C High speed decoder and decoding method |
04/02/2002 | CA2256898C Reducing crosstalk between communications systems |
04/02/2002 | CA2067546C Process and device for optimizing transmission flow of signals on multifunction well cables |
03/28/2002 | WO2002025835A1 Receiver and adaptive equalizing method |
03/28/2002 | WO2002025834A2 Interference compensator device |
03/28/2002 | WO2002025833A2 Circuit for compensating the effects of crosstalk |
03/28/2002 | WO2002025822A2 Multimedia communications over power lines |
03/28/2002 | WO2000074362A3 Methods and apparatus for improving adaptive filter performance by inclusion of inaudible information |
03/28/2002 | US20020037058 Frequency-domain equalizer for terrestrial digital TV reception |
03/28/2002 | US20020037054 Combination power and full duplex data cable |
03/28/2002 | US20020037034 Resource-constrained turbo-equalization |
03/28/2002 | US20020037031 Dynamic regulation of power consumption of a high-speed communication system |
03/28/2002 | DE10041702A1 Transmitting high frequency signals on low frequency networks involves feeding signals to side of output lines or rail distributor in order to improve transmission characteristic |
03/27/2002 | EP1191708A1 Training and synchronization sequences for wireless systems with multiple transmit and receive antennas used in CDMA or TDMA systems |
03/27/2002 | EP1190542A1 Power efficient equalization |
03/27/2002 | EP1190541A1 Circuit and method for galvanically separate broadband transmission |
03/27/2002 | EP1190495A1 Coded domain echo control |
03/27/2002 | EP1190494A1 Coded domain adaptive level control of compressed speech |
03/27/2002 | EP1012997B1 Method of and device for measuring echo parameters on telephone lines |
03/27/2002 | CN1342354A Combined channel coding and space-block coding in multi-antenna arrangement |
03/27/2002 | CN1341861A Open type voltameter |
03/27/2002 | CN1081873C Co-channel interference canceler and method therefor |
03/26/2002 | US6363343 Automatic gain control |
03/26/2002 | US6363334 Linear programming method of networking design for carrying traffic from endnodes to a core network at least cost |
03/26/2002 | US6363129 Timing recovery system for a multi-pair gigabit transceiver |
03/26/2002 | US6363111 Control loop for adaptive multilevel detection of a data signal |
03/26/2002 | US6363066 Method and arrangement for combined data and power distribution using a communication bus |
03/21/2002 | WO2002023842A1 Apparatus and method for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer |
03/21/2002 | WO2002023839A2 Active terminating device with optional line-receiving and line-driving capabilities |
03/21/2002 | WO2002023757A1 Switchable power divider |
03/21/2002 | WO2001061907A3 Calibration system for a communications system |
03/21/2002 | US20020034221 Serial digital data communications receiver with improved automatic cable equalizer, AGC system, and DC restorer |
03/21/2002 | US20020034219 Switching noise reduction in a multi-clock domain transceiver |
03/21/2002 | DE10041567A1 Power supply network has filter arranged inside coupler of redundant medium and low voltage lines of local network transformer stations, to pass high frequency signal and block low frequency signal |
03/21/2002 | CA2727842A1 System and method for transmission-line termination by signal cancellation, and applications thereof |
03/20/2002 | EP1189363A2 Coupling circuit for power line communications |
03/20/2002 | EP1188285A2 Gateway with voice |
03/20/2002 | EP1188251A1 Qualifying telephone lines for data transmission |
03/20/2002 | EP1016073B1 Method and apparatus for suppressing noise in a digital speech signal |
03/20/2002 | EP0981881B1 Equalising and decoding device for a frequency-selective digital transmission channel |
03/20/2002 | EP0620956B1 Apparatus for reducing the risk of undesirable parameterdrift of an adaptive filter used for echo cancellation |
03/20/2002 | CN1341299A Impulse response inferrer and propagation path inferring method |
03/20/2002 | CN1341063A Method for transmitting data via a traction control which carries an electrical driving current |
03/20/2002 | CN1340953A Shared device for data line and telephone line, and wiring method |
03/20/2002 | CN1340926A Training and synchronous sequence in multi-emitting and multi-receiving antenna CDMA and TDMA system |
03/20/2002 | CN1081412C Digital multiplexing telephone channels over power transmission line and integrated information transmission system |
03/20/2002 | CN1081411C Communication device with improved echo and noise control in quantization channel |
03/19/2002 | US6360081 Bidirectional signal transmission system |
03/19/2002 | US6359932 Verification of transmit power levels in a signal point limited transmission system |
03/19/2002 | US6359714 Relay system |
03/14/2002 | WO2002021718A2 Network echo canceller for integrated telecommunications processing |
03/14/2002 | WO2002021717A2 Digital echo cancellor |
03/14/2002 | WO2002021664A1 Method, system and apparatuses for the transmission of data on electric network |
03/14/2002 | WO2001010102A3 Acoustical echo cancellation device |
03/14/2002 | US20020032004 Simultaneous two-way transmission of information signals in the same frequency band |
03/14/2002 | US20020031226 Method and system for adapting a telephone line modem for use on the power line |
03/14/2002 | US20020031216 Subscriber loop range extension using negative-impedance repeaters |
03/13/2002 | EP1187410A1 Training sequences for low-latency LMS implementation |
03/13/2002 | EP1187361A1 Cable modem termination system for upstream frequency band |
03/13/2002 | EP1187360A2 Digital echo canceller |
03/13/2002 | EP1187271A2 Means for electrically connecting a data connection conductor with a low voltage power supply line |
03/13/2002 | EP1186158A2 Methods and apparatus for improved sub-band adaptive filtering in echo cancellation systems |
03/13/2002 | EP1186157A1 Symmetry based subband acoustic echo cancellation |
03/13/2002 | EP1186156A2 Adaptability to multiple hands-free communication accessories |
03/13/2002 | EP1186155A2 Loudspeaker volume range control |
03/13/2002 | EP1186115A1 Wireless local distribution system using standard power lines |
03/13/2002 | CN1339892A Circuit and method for simultaneously multi-way transmit multiple signal between multiple circuits |
03/13/2002 | CN1339880A Radio communication equipment |
03/13/2002 | CN1080955C Device for supply cabin power using bus connector without transmitter |
03/12/2002 | US6356623 Method for communicating on an equipment network |
03/07/2002 | WO2002019645A1 Frequency offset estimator |
03/07/2002 | US20020028653 Exciter system and method for communications within an enclosed space |
03/07/2002 | US20020027985 Parallel processing for multiple-input, multiple-output, DSL systems |
03/07/2002 | US20020027888 System and method for providing compatibility between different transceivers in a multi-pair communication system |
03/07/2002 | US20020027496 Identifying one of a plurality of wires of a power transmission cable |
03/07/2002 | DE10039702A1 Method for optimizing the adjustment of amplifiers in cable TV network, requires using least squares mathematical method for determining smallest square of linear measured functions |
03/06/2002 | EP1185045A2 Differential line driver |
03/06/2002 | EP1184998A2 Echo canceler and echo path estimating method |
03/06/2002 | EP1183848A1 System and method for near-end talker detection by spectrum analysis |