| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 03/11/1999 | WO1999012258A2 Audio frequency ripple control transmitter with a pulsed a.c. rectifier provided with a capacitive accumulator |
| 03/11/1999 | DE19735982A1 Leitungsempfängerschaltkreis mit Leitungsabschlußimpedanz Line receiver circuit with line termination impedance |
| 03/10/1999 | EP0901244A2 Transmission system with cross-phase and/or self-phase modulation compensation |
| 03/10/1999 | EP0901238A2 Echo canceler |
| 03/10/1999 | CN1210644A Non-invasive powerline communications system |
| 03/10/1999 | CN1210401A Method and facility for equalizing electric signal distorted due to interference in the optical domain |
| 03/10/1999 | CN1210400A New user's digital interface |
| 03/10/1999 | CN1210399A Transmission power control method in asymmetrie digital subscriber line system |
| 03/09/1999 | US5881363 Method and apparatus for combatting ingress and multipath in a CATV return channel |
| 03/09/1999 | US5881361 Communication unit power up sequencing |
| 03/09/1999 | US5880629 Demodulator having variable gain amplifier and A/D converter controlled by signal level |
| 03/04/1999 | WO1999010989A2 Method of reducing skew in signal carrying cables, and signal carrying cable utilizing such method |
| 03/04/1999 | WO1999010987A2 Predistortion linearizer circuit |
| 03/04/1999 | WO1998036515A3 Full duplex communication circuit with a transducer for simultaneously generating audio output and receiving audio input |
| 03/03/1999 | EP0898817A1 Power line communication employing cordless telephone standard |
| 03/03/1999 | EP0898816A2 Echo suppressor and non-linear processor of echo canceller |
| 03/02/1999 | US5878086 Method and apparatus for producing a deterministic sequence from an IIR filter |
| 03/02/1999 | US5878082 Data communication device for implementing accurate data communication |
| 02/25/1999 | WO1999009728A2 Line receiver circuit with line termination impedance |
| 02/25/1999 | WO1999009695A2 Method for eliminating interference in a bipolar data stream and circuitry for implementing said method |
| 02/25/1999 | WO1999009676A2 Method of optimizing transmission, and transmitter |
| 02/25/1999 | DE19735752A1 Noise suppression method in bipolar data flow |
| 02/25/1999 | DE19733866A1 Verfahren und System zur Übertragung von Daten in einem Kraftfahrzeug A method and system for transmitting data in a motor vehicle |
| 02/24/1999 | EP0898401A2 Method of interfering signal reduction during transmission of data signals |
| 02/24/1999 | EP0898380A1 Circuit for a digital telecommunications link between a central station and at least one terminal station |
| 02/24/1999 | CN1209230A Channel training of multi-channel receiver system |
| 02/24/1999 | CN1209227A Gauging convergence of adaptive filters |
| 02/24/1999 | CN1209226A Resolution enhancement of fixed point digital filiter |
| 02/24/1999 | CN1209224A Impulse noise effect reduction |
| 02/23/1999 | US5875386 Enabling and cable simulating circuits for wideband signal distribution system |
| 02/23/1999 | US5875215 For use in a receiver |
| 02/23/1999 | US5875210 For use in a communication system |
| 02/23/1999 | CA2169961C Interference suppression in cdma systems |
| 02/23/1999 | CA2074277C Adaptative equalization method reducing intersymbol interference and related receiver device and application |
| 02/22/1999 | CA2242550A1 Procedure for reducing interference in the transmission of an electrical communication signal |
| 02/18/1999 | WO1999007580A1 System for transmitting data in a motor vehicle |
| 02/18/1999 | DE19735499A1 Adapter for connection to data processing apparatus |
| 02/17/1999 | EP0495001B1 Field-mounted control unit |
| 02/16/1999 | US5872791 Method and apparatus for data encoding and communication over noisy media |
| 02/16/1999 | US5872728 For a telecommunications apparatus |
| 02/16/1999 | US5872666 Decoder circuitry with PRML signal processing for reproducing apparatus |
| 02/16/1999 | CA2109877C Clock recovery circuit |
| 02/11/1999 | WO1999007119A2 Truncated maximum likelihood sequence estimator for wireless local area networks |
| 02/11/1999 | WO1999007082A2 Cable interface for data and power supply |
| 02/11/1999 | WO1999007071A1 Adaptive filter system having mixed fixed point or floating point and block scale floating point operators |
| 02/10/1999 | EP0896449A2 Automatically adjusting communication system |
| 02/10/1999 | EP0896445A2 Method and apparatus for correction of optical signals distorted by optical interference |
| 02/10/1999 | EP0896444A2 Remote monitoring of an optical transmission system using line monitoring signals |
| 02/10/1999 | EP0895688A1 Apparatus and method for non-linear processing in a communication system |
| 02/09/1999 | US5870429 Apparatus method, and software modem for utilizing envelope delay distortion characteristics to determine a symbol rate and a carrier frequency for data transfer |
| 02/09/1999 | US5870382 Automatic protection switching system for ATM exchange network |
| 02/09/1999 | US5870372 Adaptive equalizer of recorded information reproducing apparatus |
| 02/09/1999 | US5870211 Error rate measurement system for high speed optical pulse signals |
| 02/09/1999 | US5870016 Power line carrier data transmission systems having signal conditioning for the carrier data signal |
| 02/09/1999 | US5869909 Active ground compensation |
| 02/09/1999 | US5868806 Abrasive tape and method of producing the same |
| 02/05/1999 | CA2241995A1 Method and facility for equalizing an electric signal distorted due to interference in the optical domain |
| 02/04/1999 | WO1999005869A2 Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system |
| 02/04/1999 | WO1999005831A1 Method and device for blind equalizing of transmission channel effects on a digital speech signal |
| 02/04/1999 | WO1999005820A2 Wireless communications system and method |
| 02/04/1999 | WO1998049782A3 A wire bound telecommunications device and a power supply circuit |
| 02/04/1999 | WO1998044757A3 Subscriber loop extension system for isdn basic rate interfaces |
| 02/03/1999 | EP0894389A1 Mitigation of radio frequency interference in multi-carrier transmission |
| 02/03/1999 | EP0894369A1 Distribution of radio-frequency signals through low bandwidth infrastructures |
| 02/03/1999 | EP0894364A1 Radio frequency noise canceller |
| 02/03/1999 | EP0894316A1 Electronic communication notepad |
| 02/03/1999 | CN1206968A Contact-couple distribution for near-end crosstalk compensation |
| 02/02/1999 | US5867573 Telephone handset interface with feedback control |
| 02/02/1999 | US5867540 Echo removing system between a mobile communication subscriber and a fixed communication subscriber |
| 02/02/1999 | US5867531 Maximum likelihood sequence estimator and maximum likelihood sequence estimating method |
| 02/02/1999 | US5867486 Method and an apparatus for unknown system identification |
| 02/02/1999 | CA2086358C Tap-weight controller for adaptive matched filter receiver |
| 01/28/1999 | WO1998048525A3 An arrangement in a subscriber line interface circuit |
| 01/28/1999 | DE19731000A1 Measurement data transmission method e.g. for electricity meter |
| 01/27/1999 | CN1206530A Data communication equipment |
| 01/27/1999 | CN1206528A Transmission of digital information signal having specific first sampling frequency |
| 01/27/1999 | CN1206318A Channel allocation method and circuit for testing trunk line in radio communication system |
| 01/27/1999 | CN1206256A Household signal transmission system |
| 01/26/1999 | US5864806 Decision-directed frame-synchronous adaptive equalization filtering of a speech signal by implementing a hidden markov model |
| 01/26/1999 | US5864581 Apparatus for measuring the signal transit time of a digital transmission device |
| 01/26/1999 | US5864545 System and method for improving convergence during modem training and reducing computational load during steady-state modem operations |
| 01/26/1999 | US5864284 Apparatus for coupling radio-frequency signals to and from a cable of a power distribution network |
| 01/26/1999 | CA2113760C A system for dc restoration of serially transmitted binary signals |
| 01/21/1999 | WO1999003244A2 Method of and device for measuring echo parameters on telephone lines |
| 01/21/1999 | WO1999003221A2 Device and method for determining characteristics of a digital subscriber line |
| 01/21/1999 | WO1999003209A2 Coupling communications signals to a power line network |
| 01/21/1999 | WO1999003093A1 Combined speech coder and echo canceler |
| 01/21/1999 | WO1998043368A3 Method and apparatus for controlling echo on both sides of a connection |
| 01/21/1999 | CA2297655A1 Combined speech coder and echo canceler |
| 01/20/1999 | EP0827643B1 Bidirectional transmission line driver/receiver |
| 01/20/1999 | EP0818083B1 Method of generating a.c. information for a bus system, and transmission unit for carrying out the method |
| 01/20/1999 | EP0758507A4 Tx preemphasis filter and tx power control based high speed two-wire modem |
| 01/20/1999 | CN1205596A Co-channel interference canceler and method therefor |
| 01/19/1999 | CA2153376C Maximum-likelihood sequence estimator with variable number of states |
| 01/19/1999 | CA2116584C Adaptive echo canceller for voice messaging system |
| 01/19/1999 | CA2015492C Adaptive network routing for power line communications |
| 01/14/1999 | WO1999001849A1 Vibrational transducer |
| 01/14/1999 | CA2294587A1 Vibrational transducer |
| 01/13/1999 | CN1205133A Filter co-processor |
| 01/13/1999 | CN1041683C Method for eliminating acoustic echo in communication device |