| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 05/09/1986 | WO1986002794A1 Process for reducing the loading of a transmission circuit by the receiving circuit of several transmission/receiving sets, and a circuit arrangement for realisation of the process |
| 05/07/1986 | EP0180066A2 Multidrop modem communication system |
| 05/07/1986 | EP0180065A1 Adjustable delay time equalizer having a parabolic course of the group delay time |
| 05/07/1986 | EP0179998A1 Circuit arrangement for adjusting an echo canceller |
| 05/06/1986 | US4587382 Echo canceller using end delay measurement |
| 05/06/1986 | CA1204239A1 Borsht/slic auto balancing technique |
| 05/06/1986 | CA1204238A1 Digital echo canceller for cancelling an echo signal in a frequency divisional manner |
| 05/06/1986 | CA1204164A1 Data transmission system for a local network |
| 04/30/1986 | EP0179750A2 Modular distribution frame |
| 04/30/1986 | EP0179393A1 Intermediate frequency transversal equalizer |
| 04/29/1986 | US4586186 Maintenance response signalling arrangement for a digital transmission system |
| 04/29/1986 | US4586077 Switched surface acoustic wave apparatus for controlling cable television services |
| 04/29/1986 | CA1203859A1 Apparatus and method for adjusting the receivers of data transmission channels |
| 04/29/1986 | CA1203858A1 Adaptive equalizer for digital signals |
| 04/23/1986 | EP0178821A2 Programmable automatic cable equalizer |
| 04/23/1986 | EP0178804A2 Remote meter reading |
| 04/23/1986 | EP0178720A1 Circuit arrangement for the reception of digital data with an adaptive clock recovery circuit |
| 04/22/1986 | US4584441 Bidirectional adaptive voice frequency repeater |
| 04/16/1986 | EP0177779A1 Circuit arrangement with a feeding circuit for feeding a load resistor |
| 04/16/1986 | EP0177495A1 Tracing electrical conductors by high-frequency constant-energy pulse loading |
| 04/15/1986 | US4583235 Self-adjusting equalizer configuration which automatically adjusts to the cable length |
| 04/15/1986 | US4583232 Carrier current digital data transceiver |
| 04/15/1986 | US4583220 Analog subscriber carrier system repeater with automatic gain and slope correction |
| 04/15/1986 | US4583091 Serial signal transmission system |
| 04/15/1986 | US4583073 Remote monitoring system transmitter and power supply therefor |
| 04/15/1986 | US4582963 Echo cancelling using adaptive bulk delay and filter |
| 04/09/1986 | EP0177239A2 Adaptive filter including signal path compensation |
| 04/08/1986 | US4581747 Arrangement for equalizing the variable attenuation of a signal on a communication line |
| 04/08/1986 | US4581644 Video bus |
| 04/08/1986 | US4581492 Digital duplex communication system |
| 04/08/1986 | CA1203012A1 Linear distortion canceller circuit |
| 04/02/1986 | EP0176312A1 Adaptive filter update gain normalization |
| 04/02/1986 | EP0176262A2 Bidirectional adaptive voice frequency repeater |
| 04/01/1986 | US4580275 Adaptive equalizer for binary signals and method of operating same |
| 04/01/1986 | US4580260 Analog subscriber carrier system terminal with automatic gain and slope correction |
| 04/01/1986 | US4580176 Adaptive equalization circuit for magnetic recording channels utilizing signal timing |
| 04/01/1986 | US4580161 Cable television subscriber control system including addressable filters having a variable pole |
| 04/01/1986 | US4580112 Active line filter for power line conducted interference |
| 04/01/1986 | US4580016 Method and apparatus for checking the integrity of a communications channel in a voice store and forward system |
| 04/01/1986 | CA1202693A1 Adaptive filter including controlled tap gain coefficient drift |
| 03/25/1986 | US4578544 Initialization device for echo cancelling device and application thereof to remote echos |
| 03/25/1986 | US4578543 For use in telephone equipment |
| 03/25/1986 | CA1202412A1 System for non linearity correction by intermediate frequency premodulation in television equipment |
| 03/25/1986 | CA1202405A1 Transmission line changeover switch |
| 03/25/1986 | CA1202382A1 Hybrid circuit |
| 03/19/1986 | EP0174781A2 Bidirectional adaptive voice frequency repeater |
| 03/19/1986 | EP0174749A1 Echo canceller |
| 03/19/1986 | EP0174678A2 Echo canceller using delta modulation |
| 03/19/1986 | EP0174612A2 Composite shift keying communication system |
| 03/18/1986 | US4577335 Coherent data communications technique |
| 03/18/1986 | US4577333 Composite shift keying communication system |
| 03/18/1986 | US4577329 Self-adaptive equalizer for baseband data signals |
| 03/18/1986 | US4577328 Method and circuit for detecting a training signal |
| 03/18/1986 | US4577309 Method and apparatus for measuring distant echo delay in an echo cancelling arrangement |
| 03/18/1986 | US4577071 Echo canceller with adaptive residual center clipper controlled by echo estimate |
| 03/18/1986 | CA1202060A1 Coaxial lightning arresting structure |
| 03/13/1986 | WO1986001664A1 Method and apparatus for accessing communication systems |
| 03/13/1986 | WO1986001663A1 Method and apparatus for testing communication systems |
| 03/13/1986 | WO1986001662A1 Method and apparatus for supervising the accessing and testing of communication systems |
| 03/13/1986 | WO1986001661A1 Method and apparatus for configurable line testing |
| 03/12/1986 | EP0174125A2 Digital data receiver |
| 03/12/1986 | EP0174005A2 Line equalizer operable in response to an input signal of a variable data rate |
| 03/11/1986 | US4575857 Adaptive equalizer with variable tap coefficient leakage |
| 03/11/1986 | US4575843 Time-division-multiplexing loop telecommunication system having a first and second transmission line |
| 03/11/1986 | US4575759 Component video interconnection apparatus |
| 03/04/1986 | US4574253 Broadband control amplifier |
| 03/04/1986 | US4574246 Demodulator with AGC circuit for multi-level quadrature amplitude-modulated carrier wave |
| 03/04/1986 | US4574167 Method and apparatus for configurable line testing |
| 03/04/1986 | CA1201541A1 Adaptive sub-band echo suppressor |
| 03/04/1986 | CA1201504A1 Method and device for teledetection and telemetry of combustible gases in an atmosphere |
| 02/27/1986 | WO1986001354A1 Optical receiver circuit |
| 02/26/1986 | EP0172532A2 Waveform shaping apparatus |
| 02/26/1986 | EP0104193B1 Insulated device for the transmission of binary information through an electric line |
| 02/25/1986 | US4573170 Apparatus and method for sampling multiple carrier signals |
| 02/25/1986 | US4573153 Data transmitting-receiving system for suppressing data error |
| 02/25/1986 | CA1201178A1 Method of preparing electrical signals by means of a digital filtering device |
| 02/19/1986 | EP0171692A2 Subscriber line circuit |
| 02/19/1986 | EP0171643A1 Method for the transmission of signals between terminals |
| 02/19/1986 | EP0171470A2 Feeding device for transmitters and receivers of a signal-transmission system |
| 02/18/1986 | US4571733 Automatic equalization device and method of starting-up the same |
| 02/18/1986 | US4571732 Adaptive equalizer for binary signals and method of operating same |
| 02/18/1986 | US4571720 Method and apparatus for reducing the convergence time of an echo canceller |
| 02/18/1986 | US4571719 FIR-Type balance filter incorporated in the transmitter-receiver unit in a telecommunication system |
| 02/18/1986 | US4571465 Echo canceller for a baseband data signal |
| 02/18/1986 | CA1200940A1 Echo suppressor for data transmission |
| 02/18/1986 | CA1200938A1 Voice and data interface circuit |
| 02/18/1986 | CA1200932A1 Remote monitoring system transmitter |
| 02/18/1986 | CA1200868A1 Circuit for boosting digital data signals transmitted on a transmission line |
| 02/12/1986 | EP0171302A1 Method and apparatus for transmitting signals concerning an electric machine provided with a triple phase feeding cable |
| 02/12/1986 | EP0170916A1 Circuit arrangement with two feeding circuits with opposed polarity which are connectable to a load |
| 02/11/1986 | US4570127 Automatic gain control circuit for burst signal communication system |
| 02/11/1986 | US4570037 Fault detection in a telephone cable pressure monitoring system |
| 02/11/1986 | US4570036 For data signals |
| 02/05/1986 | EP0170516A2 Diagnostic apparatus |
| 02/04/1986 | US4569045 3-Wire multiplexer |
| 02/04/1986 | US4568933 Electronic well tools and multi-channel recorder |
| 02/04/1986 | US4568884 Circuit arrangement comprising an amplifier and an electronic selector switch |
| 02/04/1986 | US4568802 VF Line fault isolation and diagnostic apparatus and method |
| 02/04/1986 | CA1200294A1 Power supply system for automotive parts having a rotary component |
| 01/29/1986 | EP0169696A2 Battery feed system |