Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
11/2000
11/07/2000US6144399 Passive system used to merge telephone and broadband signals onto one coaxial cable
11/07/2000US6144292 Powerline communications network employing TDMA, FDMA and/or CDMA
11/07/2000US6144291 Bit encoding in home control systems
11/07/2000US6144290 Control device for the emission of carrier currents on a low voltage network
11/07/2000US6144242 Controllable delays in multiple synchronized signals for reduced electromagnetic interference at peak frequencies
11/02/2000WO2000065866A1 Path switching according to transmission requirements
11/02/2000WO2000065818A1 Apparatus and method for detecting far end speech
11/02/2000WO2000065791A1 Gigabit ethernet with timing offsets between the twisted pairs
11/02/2000WO2000065772A2 Phy control module for a multi-pair gigabit transceiver
11/02/2000WO2000065741A1 Use of the low-voltage network in a building for the transmission and broadcasting of high-frequency mobile telephone signals
11/02/2000EP1049327A2 Variable cable length compensator for video imaging systems
11/02/2000EP1049308A1 Communication device and method
11/02/2000EP1049300A2 PCM modem with pre-equalisation
11/02/2000EP1049272A2 Signal quality monitoring system and method
11/02/2000EP1049267A1 Signal transmitting circuit
11/02/2000EP1049259A1 Vibration wave encoding method and method
11/02/2000EP1048493A2 Combination monitoring device and patch for a pneumatic tire and method of installing the same
11/02/2000EP1048154A1 Method and apparatus for tracking the characteristics of a channel
11/02/2000EP1048129A1 Method and apparatus for crosstalk cancellation
11/02/2000DE19917663A1 Verfahren zur Echounterdrückung durch Vorabermittlung einer Grundverzögerung A method for echo cancellation by preliminary identification of a basic delay
11/02/2000DE19917658A1 Testsignal zur Messung der Echoimpulsantwort während des Aufbaus einer TK-Verbindung Test signal for measuring the echo impulse response during the construction of a telecommunication connection
11/02/2000CA2372142A1 Apparatus and method for detecting far end speech
11/01/2000CN1272006A Method and device for estimating transmission channel characteristics
11/01/2000CN1272005A Iterative information channel estimation and compensation based on channel estimation
10/2000
10/31/2000US6141634 AC power line network simulator
10/31/2000US6141406 Method and apparatus for detecting a secondary destination of a telephone call based on changes in the telephone signal path
10/31/2000US6141378 Fractionally-spaced adaptively-equalized self-recovering digital receiver for amplitude-phase modulated signals
10/31/2000US6141195 Data and/or energy transmission device with a disconnecting unit
10/31/2000US6141167 Compensating circuit, equalizer and magnetic recording/reproducing apparatus using the same
10/31/2000US6140911 Power transfer apparatus for concurrently transmitting data and power over data wires
10/31/2000US6140585 Wire telecommunication equipment with protection against electromagnetic interference
10/31/2000CA2245803C Impedance regulator system and method
10/31/2000CA2170931C Timing recovery in a network-synchronized modem
10/31/2000CA2167745C Communication arrangement with improved echo and noise suppression in a channel containing quantization
10/26/2000WO2000064132A2 Predicting performance of telephone lines for data services
10/26/2000WO2000064131A2 Predicting performance of telephone lines for data services
10/26/2000WO2000064130A2 Determining the physical structure of subscriber lines
10/26/2000WO2000063709A1 Detection of bridge tap using frequency domain analysis
10/26/2000DE19913919C1 Kraftfahrzeug-Datenübertragungssystem und Datenübertragungsverfahren Vehicle data transmission system and data transmission method
10/26/2000CA2371146A1 Determining the physical structure of subscriber lines
10/26/2000CA2306529A1 Cable simulator
10/25/2000EP1047233A2 Iterative channel estimation and compensation based theron
10/25/2000EP1047205A2 Circuit device having reduction circuit for reducing the crosstalk on a two-wire line
10/25/2000EP1047204A2 Testsignal for measuring the echo impulse response during call setup
10/25/2000EP1047203A2 Method for echo cancelling by predetermination of flat delay
10/25/2000EP1046273A1 Methods and apparatus for providing comfort noise in communications systems
10/25/2000EP1046272A2 Methods and apparatus for improved echo suppression in communications systems
10/25/2000EP1046265A1 Reduction of the multipath effects in a full duplex transmission
10/24/2000US6137882 Adaptive echo cancellation method
10/24/2000US6137827 Isolation system with digital communication across a capacitive barrier
10/23/2000CA2306027A1 Iterative channel estimation and compensation based thereon
10/19/2000WO2000062501A2 Gateway with voice
10/19/2000WO2000062490A1 Data transmission in power distribution network
10/19/2000WO2000062439A2 Method and device for transmitting a transmission signal via a two-core line
10/19/2000WO2000062415A1 Means and method for increasing performance of interference-suppression based receivers
10/19/2000WO2000036798A3 Network data filtering
10/19/2000WO2000028691A9 Multi-pair gigabit ethernet transceiver
10/19/2000DE19915859A1 Anordnung für eine Datenübermittlung im Heimbereich Arrangement for data transmission in the home
10/19/2000CA2370040A1 Means and method for increasing performance of interference-suppression based receivers
10/18/2000EP1044558A1 Methods and apparatus for controlling echo suppression in communications systems
10/18/2000EP1044530A1 Rate detection in direct sequence code division multiple access system
10/17/2000US6134538 Procedure for equalizing distorted data signals
10/17/2000US6134322 Echo suppressor for a speech input dialogue system
10/17/2000US6134280 Delayed decision feedback sequence estimator for determining optimal estimation region with small calculation quantity
10/17/2000US6134216 Integrated overload control for overload control for distributed real time systems
10/17/2000US6134035 Optical network termination unit of a hybrid fiber/coax access network
10/17/2000CA2015414C Method of and system for power line carrier communications
10/12/2000WO2000060841A1 Method and apparatus for space-time echo cancellation
10/12/2000WO2000060732A1 Signal processing
10/11/2000EP1043875A2 Receiver for discrete multitone modulated signals having window function
10/11/2000EP1043866A2 Arrangement for home area data transmission
10/11/2000EP1043107A2 Arc welding device
10/11/2000EP1042903A1 Echo canceller employing dual-h architecture having improved non-linear echo path detection
10/11/2000EP1042873A1 Adaptive non-linear echo compensator
10/11/2000EP1042861A1 Device and method for detecting pcm upstream digital impairments in a communication network
10/11/2000EP0763279A4 High speed transport system
10/11/2000CN2400972Y Control switch for radio-frequency signal of wired TV
10/11/2000CN1269926A Method and apparatus for echo estimation and suppression
10/10/2000US6131014 Bidirectional communication system and upstream communication noise level determination method
10/10/2000US6130943 Method and apparatus for suppressing echo in telephony
10/10/2000US6130896 Wireless LAN segments with point coordination
10/10/2000US6130488 Switching filter producing a low impedance control input on a high impedance input line for discriminating false control signals
10/05/2000WO2000059168A1 Adaptive filter equalisation techniques
10/05/2000WO2000059127A1 Signalling method and apparatus
10/05/2000WO2000059126A1 Optical amplifier
10/05/2000WO2000059125A1 Method and device for reducing crosstalk interference
10/05/2000WO2000059124A1 Digitally-tunable echo-cancelling analog front end for wireline communications devices
10/05/2000CA2363502A1 Method and device for reducing crosstalk interference
10/05/2000CA2333531A1 Signalling method and apparatus
10/04/2000EP1041751A2 Receiver for optical signals
10/04/2000EP1041731A1 Method and arrangement to estimate transmission channel characteristics
10/04/2000EP1040633A1 Echo canceller employing dual-h architecture having variable adaptive gain settings
10/04/2000CN1269087A Bidirectional communication system having symmetrical transmission rates
10/03/2000USH1885 Apparatus and method for controlling the operational state of an echo canceller
10/03/2000US6128350 Method and apparatus for reducing peak to average power ratio in digital broadcasting systems
10/03/2000US6128347 Signal transmission circuit with protection line driven with signal having same phase as transmission signal
10/03/2000US6127795 Transmitting process information for regulating drives
10/03/2000US6126463 Contact apparatus for a network
10/03/2000CA2257495C Optical transmission systems using optical amplifiers and wavelength division multiplexing
10/03/2000CA2196554C Test method
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