Patents for H04B 3 - Line transmission systems (31,523) |
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08/16/2000 | CN1263426A Voice frequency processing equipment, receiver, filtering and method for recovering useful signal |
08/15/2000 | US6104782 Method for measuring quality determining parameters of a firmly connected communications transmission link |
08/15/2000 | US6104758 Process and system for transferring vector signal with precoding for signal power reduction |
08/15/2000 | US6104707 Transformer coupler for communication over various lines |
08/15/2000 | US6104236 Apparatus and method for equalizing received network signals using a transconductance controlled biquadratic equalizer |
08/10/2000 | WO2000046937A1 Communication station with automatic cable loss compensation |
08/10/2000 | WO2000046936A1 Analogue echo filter |
08/10/2000 | WO2000046923A1 Apparatus and method for implementing digital communications on a power line |
08/10/2000 | WO2000046916A1 A closed loop calibration for an amplitude reconstruction amplifier |
08/10/2000 | WO2000046802A1 Adaptive equalizing circuit |
08/10/2000 | WO2000030272A3 Method and device for precise measurement of return loss over a wide dynamic range |
08/10/2000 | DE19904358A1 Data exchange on decentralized network, transmitting telegrams between master station and an external station over common data channel of network |
08/10/2000 | CA2362103A1 Apparatus and method for implementing digital communications on a power line |
08/09/2000 | EP1025654A1 Improvements in, or relating to, digital transmission |
08/09/2000 | EP1025652A1 Improvements in, or relating to, near-echo suppression |
08/09/2000 | EP1025327A1 Drive system for a partition wall system |
08/09/2000 | CN1262818A Method for cancelling echoes in communication system, communication device, and radio base station of cordless telephone device |
08/09/2000 | CN1262561A Telecommunication line and its accessory |
08/08/2000 | US6101214 Power line communications spread spectrum symbol timing and random phasing |
08/08/2000 | US6101016 Optical transmission systems using optical amplifiers and wavelength division multiplexing |
08/08/2000 | CA2070811C Waveshaping transversal filter and method utilizing the same for data transmission over coaxial cable |
08/03/2000 | CA2633064A1 Multicarrier transmission system with low power sleep mode and rapid-on capability |
08/02/2000 | CN1262012A Improved acoustic echo canceler for telecommunications system |
08/02/2000 | CN1261742A Sub-band echo killer and its method |
08/01/2000 | US6098193 Data-reproducing device that detects equalization in the presence of pre-equalization data variation |
08/01/2000 | US6098161 Method of generating address of coefficient memory in OFDM adaptive channel equalizer and apparatus employing the same |
08/01/2000 | US6097971 Hands-free speech communication apparatus |
08/01/2000 | US6097767 Apparatus and method for determining an optimum equalizer setting for a signal equalizer in a communication network receiver |
08/01/2000 | US6097761 Method and system for the transmission of data and power |
08/01/2000 | CA2198677C Adaptive filter with disabling circuit for fast tap weight convergence |
08/01/2000 | CA2145339C Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as hdtv receivers |
08/01/2000 | CA2066743C Field-mounted control unit |
07/28/2000 | CA2260486A1 Automatic meter reading system using locally communicating utility meters |
07/27/2000 | WO2000044142A1 Trellis decoder with correction of pair swaps, for use in gigabit ethernet transceivers |
07/27/2000 | WO2000044108A1 Adaptive equalizer and adaptive equalizing method |
07/27/2000 | WO1997042742A3 Transmission of a digital information signal having a specific first sampling frequency |
07/27/2000 | EP0843933A3 Transmission of a digital information signal having a specific first sampling frequency |
07/27/2000 | DE19902490A1 Measurement arrangement has group separator module at end of each group followed by another group to enable group to be separated or cut off from further group(s) |
07/26/2000 | EP1022866A1 Echo elimination method, echo canceler and voice switch |
07/26/2000 | EP1022865A1 Echo canceller and echo cancelling method |
07/26/2000 | EP1021867A2 Coupling communications signals to a power line |
07/26/2000 | EP1021866A2 Data transmission over a power line communications system |
07/26/2000 | EP0521868B1 Digital virtual earth active cancellation system |
07/26/2000 | CN1261480A System and method for distributing rf signals |
07/25/2000 | US6094422 Echo canceller touch-up period in an echo-cancelling modem |
07/25/2000 | US6094062 Coupled noise reduction circuitry |
07/20/2000 | WO2000042758A1 Circuit arrangement for transmitting signals in telecommunications networks |
07/20/2000 | WO2000042715A2 Variable equalizer |
07/20/2000 | WO2000030269A8 Data access arrangement for a digital subscriber line |
07/20/2000 | DE19901819A1 Short circuit test lamp for INTERBUS-S system tests parallel input lines simultaneously. |
07/19/2000 | EP1020875A2 Emi filtering of multi-wire cables |
07/19/2000 | EP1019847A1 System for dynamically adapting the length of a filter |
07/18/2000 | US6091813 Acoustic echo canceller |
07/18/2000 | US6091738 Transmission-equipment and method for assigning transmission-equipment identification number in transmission system |
07/18/2000 | US6091670 Underwater cable arrangement and coil support arrangement for an underwater cable |
07/18/2000 | US6091320 Automated home control using existing electrical lines as a communications medium |
07/13/2000 | WO2000041338A1 Receiver for smoothing channel estimates using spectral estimation |
07/12/2000 | EP1018831A1 Communication device and method |
07/12/2000 | EP1018267A2 Pay-per-view program access control system |
07/12/2000 | CN2387675Y Integral cable for feeding and communicating |
07/12/2000 | CN1260087A Dual-processing interference cancelling system and method |
07/11/2000 | US6088445 Adaptive filter system having mixed fixed point or floating point and block scale floating point operators |
07/11/2000 | US6088401 QAM signal receiver |
07/11/2000 | US6088386 Transmitter with phase rotor, modulator/demodulator, communication system and method performed thereby |
07/11/2000 | US6088366 Device and method for converting a data transfer rate in communication of digital audio and video data |
07/11/2000 | US6087958 Multi-stage routing switchers with sequential and non-repetitive distributive circuit interconnections |
07/11/2000 | US6087835 LAN tester |
07/11/2000 | US6087736 Communication system for vehicle |
07/11/2000 | CA2012913C Line probing mechanism |
07/06/2000 | WO2000040041A1 Communication system, communication method and corresponding devices |
07/06/2000 | WO2000039972A1 Enhanced method for adaptive equalization technique in mobile wireless systems |
07/06/2000 | WO2000019605A3 Band-limited adaptive feedback canceller for hearing aids |
07/06/2000 | DE19858506A1 Fernspeisedrossel Remote feed throttle |
07/05/2000 | EP1017218A1 Method and device for detecting an off-hook condition of a local telephone and modem including such a device |
07/05/2000 | EP1017184A2 A powerfeed for a submarine communications system |
07/05/2000 | EP1016224A2 Predistortion linearizer circuit |
07/05/2000 | EP1016073A1 Method for suppressing noise in a digital speech signal |
07/05/2000 | EP0721702A4 Line interface apparatus and method for isolating data terminal equipment from the line |
07/05/2000 | CN1258987A Apparatus and method for detecting telephone calling and modulator-demodulator unit containing the same apparatus |
07/05/2000 | CN1258965A Mixed mode near-end crosstalk/echo eliminator for pulse amplitude modulation signal |
07/04/2000 | US6085072 Telephone system and voice encoding/decoding method |
07/04/2000 | US6084929 Method and apparatus for channel tracking |
07/04/2000 | US6084505 Method and apparatus for sending signals over an electric fence line |
07/04/2000 | US6084466 Variable gain current summing circuit with mutually independent gain and biasing |
06/30/2000 | CA2292679A1 Method, device for detecting the calling of a telephone and modem including such a device |
06/29/2000 | WO2000038402A1 Power line communication system for local area networks |
06/29/2000 | WO2000038350A2 Signalling method and telecommunication system |
06/29/2000 | WO2000038347A1 A remote feeder reactance coil |
06/29/2000 | WO2000038346A1 Method for transmitting communications information and corresponding communications unit and communications system |
06/29/2000 | WO2000038345A1 Echo and distortion cancellation arrangement |
06/29/2000 | WO2000038319A1 Stable adaptive filter and method |
06/29/2000 | WO2000038075A1 Echo reduction on bit-serial, multi-drop bus |
06/29/2000 | CA2356117A1 Signalling method and telecommunication system |
06/29/2000 | CA2355719A1 Echo and distortion cancellation arrangement |
06/29/2000 | CA2318929A1 Stable adaptive filter and method |
06/28/2000 | EP1014722A2 Method and apparatus for filtering interference and nonlinear distortions |
06/28/2000 | EP1014658A2 Method to pre-qualify copper loops for adsl service |
06/28/2000 | EP1014657A1 Loop telephone line assembly and methods |
06/28/2000 | EP1014640A2 Multicarrier transmission on power lines |
06/28/2000 | EP1014635A2 DFE with blind, decision directed and data directed modes |