| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 08/02/1984 | WO1984003015A1 Telecommunication terminal |
| 07/31/1984 | US4463352 Fault tolerant, self-powered data reporting system |
| 07/25/1984 | EP0114066A2 Automatic gain control circuit for burst signal communication system |
| 07/24/1984 | US4462113 Cordless transmitting and receiving apparatus |
| 07/24/1984 | US4462058 Switching apparatus for devices for alternating current parallel remote feed |
| 07/24/1984 | CA1171566A1 Amplitude equalizer |
| 07/24/1984 | CA1171565A1 Transformerless hybrid circuit |
| 07/24/1984 | CA1171475A1 Two-terminal-pair network simulating an inductance |
| 07/24/1984 | CA1171469A1 Automatic equalizer |
| 07/24/1984 | CA1171468A1 Multipath fade equaliser |
| 07/19/1984 | WO1984002814A1 Improved method and means of determining coefficients for linear predictive coding |
| 07/18/1984 | EP0113571A1 Linear distortion canceller circuit |
| 07/18/1984 | EP0113487A1 Method to be used in an echo cancelling arrangement for measuring an echo delay, and arrangement for carrying out this method |
| 07/17/1984 | CA1171146A1 Active equalizer |
| 07/17/1984 | CA1171145A1 Channel equalizer and method for cancelling ghosts |
| 07/11/1984 | EP0113231A2 Data transmission system with modems coupled to a common communication medium |
| 07/11/1984 | EP0113230A2 Data transmission system for a local network |
| 07/11/1984 | EP0112947A1 Data transmission wired system over building |
| 07/10/1984 | US4459698 Variable equalizer |
| 07/10/1984 | US4459491 Circuit arrangement for automatically closing a remote feed loop of a remote feed device |
| 07/05/1984 | WO1984002625A1 Method of detecting hazardous line voltages over a two-wire line |
| 07/05/1984 | WO1984002620A1 Cmos circuit using transmission line interconnections |
| 07/04/1984 | EP0112523A1 Canceller trained echo suppressor |
| 07/04/1984 | EP0112395A1 Training system for data receiver |
| 07/03/1984 | US4458236 Communications signal coupling around wye/delta power transformation |
| 07/03/1984 | US4458113 Conductor pair identifier apparatus |
| 07/03/1984 | CA1170382A1 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit |
| 06/27/1984 | EP0112107A2 Data transmitting-receiving system |
| 06/27/1984 | EP0111938A1 Fast convergence method and system for echo canceller |
| 06/27/1984 | EP0111832A1 Circuit arrangement for fault localisation in a digital telephone subscriber line |
| 06/27/1984 | EP0111604A1 Transmitter/receiver circuit pair for signal transmission over power wiring |
| 06/26/1984 | US4456992 Method and apparatus for enhancing the probability of error-free reception of digital signals |
| 06/26/1984 | US4456893 Equalizer having a substantially constant gain at a preselected frequency |
| 06/26/1984 | CA1169928A1 Electrical data pulse processing |
| 06/26/1984 | CA1169681A1 Signal filter method and apparatus |
| 06/20/1984 | EP0111168A1 Circuit for fault localisation with an arrangement for the remote feeding of electricity consumers |
| 06/19/1984 | CA1169597A1 Home communications and control system |
| 06/19/1984 | CA1169503A1 Driving point impedance derived from a transfer impedance |
| 06/19/1984 | CA1169492A1 Echo canceler having simplified calculation circuits |
| 06/13/1984 | EP0110728A2 Automatic level control circuit |
| 06/12/1984 | CA1169135A1 Adaptive filter including a far end energy discriminator |
| 06/12/1984 | CA1169134A1 Adaptive system in a digital data receiver providing compensation for amplitude and phase distortions introduced by a data transmission channel |
| 06/05/1984 | US4453218 For determining oxygen saturation of blood |
| 06/05/1984 | US4453156 Load control receiver and method of operation |
| 06/05/1984 | US4453143 Switched-capacitor variable equalizer |
| 06/05/1984 | US4453039 Arrangement for avoiding annoying sustained oscillations in a closed-loop system and loud-speaking telephone set employing this arrangement |
| 06/05/1984 | CA1168777A1 Digital two-to-four wire converter for full duplex signals |
| 06/05/1984 | CA1168776A1 Automatic, digitally synthesized matching line terminating impedance |
| 06/05/1984 | CA1168775A1 All digital lsi line circuit for analog lines |
| 05/30/1984 | EP0109795A2 A filter for use in a cable television system |
| 05/30/1984 | EP0109680A1 Adjustable attenuation equalizer designed as a Bode equalizer |
| 05/30/1984 | EP0049276B1 Terminal unit for automatic meter reading system |
| 05/29/1984 | US4451853 Image data transmission process |
| 05/29/1984 | US4451801 Wideband linear carrier current amplifier |
| 05/29/1984 | US4451712 Tester for remote controlled radio systems |
| 05/29/1984 | CA1168389A1 Analogue/digital telecommunications subscriber station |
| 05/29/1984 | CA1168331A1 Echo canceller |
| 05/29/1984 | CA1168330A1 Echo canceler far end energy discriminator |
| 05/23/1984 | EP0109045A2 Equalizing arrangement with automatic adaptation to the cable length |
| 05/22/1984 | US4450571 Two-way signal transmission and one-way DC power supply using a single line pair |
| 05/22/1984 | US4450555 Device for minimizing far-end crosstalk between half-duplex digital transmission lines |
| 05/22/1984 | CA1167988A1 Line powered transformerless loudspeaking telephone |
| 05/15/1984 | US4449218 Analog/digital telecommunication subscriber station |
| 05/15/1984 | US4449157 Surge protection for signal transmission systems |
| 05/10/1984 | WO1984001866A1 An active delay equalizer section having independently tunable circuite parameters and a circuit and method for correcting for phase distortion in a digital audio system |
| 05/02/1984 | EP0107246A1 Receiver for a data transmission modem comprising an echo canceller and an equalizer |
| 05/02/1984 | EP0107233A1 Base band signal echo canceller |
| 05/02/1984 | EP0107122A1 Adaptive echo suppressor and method |
| 05/02/1984 | EP0106924A1 Noise reduction in signal transmission system over building power distribution wiring |
| 05/02/1984 | EP0106883A1 Intercommunication system |
| 05/01/1984 | US4446458 Monitoring and control system |
| 04/26/1984 | WO1984001641A1 Adaptive filter including controlled tap gain coefficient drift |
| 04/25/1984 | EP0106640A1 Noise control circuit |
| 04/25/1984 | EP0106406A1 Self-adaptive equalizer for base band data signal |
| 04/25/1984 | EP0106229A2 Adaptive filter including controlled tap gain coefficient drift |
| 04/25/1984 | EP0106079A2 Surge protection for signal transmission systems |
| 04/24/1984 | CA1166370A1 Tone responsive disabling circuit |
| 04/18/1984 | EP0105503A2 Automatic adaptive equalizer having improved reset function |
| 04/17/1984 | US4443882 Single terminal negative capacitance generator for response time enhancement |
| 04/17/1984 | US4443786 Data transmission system employing wire and wireless transmission paths |
| 04/17/1984 | CA1165917A1 Device for measuring the attenuation in a transmission path |
| 04/17/1984 | CA1165823A1 Automatic equalizer for synthesizing recursive filters |
| 04/12/1984 | WO1984001482A1 Cash flow monitoring system |
| 04/12/1984 | WO1984001481A1 Telephone extension system |
| 04/10/1984 | US4442364 Overhead electric transmission systems |
| 04/04/1984 | EP0104660A2 Self-adaptive echo canceller capable of keeping a degree of cancellation substantially invariable even at a low incoming level |
| 04/04/1984 | EP0104220A1 Supply circuit included in a dc-magnetized hybrid transformer. |
| 04/04/1984 | EP0104193A1 Insulated device for the transmission of binary information through an electric line. |
| 04/03/1984 | US4441192 Signal processing system having impulse response detecting circuit |
| 04/03/1984 | CA1165029A1 Subscriber line audio processing circuit apparatus |
| 03/29/1984 | WO1984001248A1 Pulse width modulated telephone line interface |
| 03/28/1984 | EP0103880A2 Remote powering coupler for a line terminal arrangement in an analogous or digital information transmission system |
| 03/27/1984 | CA1164548A1 Repeater for a digital transmission system |
| 03/20/1984 | US4438519 Methods, and apparatus, for transmitting high-bit-rate digital data in power line communication media having high harmonic noise content |
| 03/20/1984 | US4438409 Active equalizer |
| 03/15/1984 | WO1984001067A1 Process for maintaining in service coaxial multichannel installations by a transmission network which is remotely supplied and comprised of symmetric cables, and transmission chain for implementing such process |
| 03/13/1984 | US4436962 Call coverage arrangement |
| 03/13/1984 | CA1192644B Dataset apparatus |
| 03/13/1984 | CA1163691A1 Dataset apparatus |
| 03/07/1984 | EP0102222A2 Loop transmission system and method of controlling its loop-back condition |