| Patents for H04L 5 - Arrangements affording multiple use of the transmission path (28,368) |
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| 05/23/1990 | EP0369917A2 Method for broadcasting digital data, especially towards mobile stations, with a high bit rate, with time-frequency interleaving and analogous synchronisation |
| 05/16/1990 | CN1008042B Digital signal transmitting system |
| 05/15/1990 | US4926417 Information transmission and reception system for a vehicle |
| 05/15/1990 | US4926414 Control point session synchronization in a network |
| 05/15/1990 | CA1269186A1 Digital data communicating |
| 05/15/1990 | CA1269141A1 Task synchronization arrangement and method for remote duplex processors |
| 05/10/1990 | DE3837288A1 Multiplex information transmission system |
| 05/09/1990 | CN1042035A Feature negotiation protocol and dynamically adjustable retraming sequence for high speed half duplex method |
| 05/08/1990 | US4924479 Communication control system |
| 05/08/1990 | US4924464 Technique for converting either way between a plurality of N synchronized serial bit streams and a parallel TDM format |
| 05/08/1990 | US4924456 High speed modem |
| 05/03/1990 | WO1990004894A1 Method and apparatus for preventing transmission of data packets with a greater intensity than a predetermined value on any one of a number of channels on a common transmission link |
| 05/02/1990 | EP0366635A1 Method and apparatus for preventing transmission of data packets with a greater intensity than a predetermined value on anyone of a number of channels on a common transmission link |
| 05/02/1990 | CN1007863B Distributional controlled time-sharing multiplexer with single chip microprocessors |
| 04/28/1990 | CA2001677A1 Method and apparatus for preventing transmission of data packets with a greater intensity than a predetermined value on anyone of a number of channels on common transmission link |
| 04/25/1990 | EP0364866A2 Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem |
| 04/25/1990 | EP0165242B1 Fiber optic digital data transmitting system |
| 04/24/1990 | CA1268227A1 Data transmission system with data verification |
| 04/19/1990 | WO1990004296A1 An interface for use between two communication units |
| 04/18/1990 | EP0364022A1 Device for the resynchronisation of information originating from incoming asynchronous time multiplex lines for the transmission to outgoing time multiplex lines |
| 04/17/1990 | US4918685 Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement |
| 04/11/1990 | EP0363231A1 Method of transmitting information over a bidirectional link, and apparatus for carrying out the same |
| 04/10/1990 | CA1267730A1 Converter/line driver circuit for a line repeater |
| 04/10/1990 | CA1267703A1 System for controlling operation mode of modulator/demodulator |
| 04/05/1990 | DE3833184A1 Method and circuit arrangement for establishing frame synchronisation in a time-division multiplex system |
| 04/05/1990 | DE3832946A1 Method for encoding digital time-division multiplex signals |
| 03/28/1990 | EP0360241A2 Error correction system in a multicarrier radio transmission system |
| 03/27/1990 | US4912724 Bidirectional bus arrangement for a digital communication system |
| 03/27/1990 | US4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 03/21/1990 | EP0358831A1 Multiplexing system setting through mask registers |
| 03/14/1990 | CN1040471A Communication system using distributed switching for time division multipexing of voice and date |
| 03/13/1990 | US4908840 PSK modulation with an error correction memory |
| 03/07/1990 | EP0357038A2 Signal transmission system and method, in which operation response time can be shortened |
| 03/06/1990 | US4907223 Electrical devices command system, single wire bus and smart quad controller arrangement therefor |
| 02/28/1990 | CN1007032B Method of duplex data transmission using send-and-wait protocol |
| 02/27/1990 | US4905282 Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem |
| 02/21/1990 | EP0355073A1 Synchronisation method and synchronisation recovery circuits for time-shared communications |
| 02/21/1990 | CN1039869A Modal transmission method and apparatus for multi-conductor wireline cables |
| 02/08/1990 | DE3826663A1 Method and circuit for simultaneously transmitting operating data and/or control commands of a mining machine used underground and of speech signals of the machine operator |
| 02/07/1990 | EP0353946A2 Data communication arrangement with embedded matrix switch |
| 02/06/1990 | US4899383 Apparatus and method for secure digital communication |
| 02/06/1990 | US4899337 Time division multiplexer with automatic call function |
| 02/06/1990 | US4899332 Data transmission/reception systems for electro-hydraulic control systems |
| 01/31/1990 | EP0352869A2 Modal transmission method and apparatus for multi-conductor wireline cables |
| 01/30/1990 | US4897834 Bit oriented communications network |
| 01/30/1990 | US4897831 Data transmission/reception apparatus |
| 01/30/1990 | CA1265269A1 Tdm communication system for efficient spectrum utilization |
| 01/18/1990 | DE3918709A1 Transmission device in accordance with CCITT Recommendation 1.430 |
| 01/16/1990 | US4894847 High speed half duplex modem with fast turnaround protocol |
| 01/10/1990 | CN1006434B Pulse/direct current multiplexing circuit in key telephone system |
| 01/02/1990 | US4891801 Terminal for the transmission of data over a bidirectional analog channel with echo cancellation controlled by the reception rate |
| 12/26/1989 | US4890316 Modem for communicating at high speed over voice-grade telephone circuits |
| 12/14/1989 | WO1989012365A1 Process for switching signals into or out of subdomains of the supplementary signals of transmission modules of a synchronous digital signal hierarchy |
| 12/12/1989 | US4887258 Echo cancelling device with phase-roll correction |
| 12/12/1989 | US4887257 Echo cancelling device for data transmission over two-wire lines |
| 12/06/1989 | EP0344169A1 Transmission system. |
| 12/05/1989 | US4885795 Hospital digital data transfer system |
| 12/05/1989 | US4885741 Data communication arrangement with embedded matrix switch |
| 12/05/1989 | US4885737 Echo canceler having simplified calculation circuits |
| 11/28/1989 | US4884267 TDM transmission system |
| 11/28/1989 | US4884139 Method of digital sound broadcasting in television channels with spectrum interlacing |
| 11/23/1989 | EP0343034A1 Radio system for data transmission with a passive terminal station |
| 11/23/1989 | EP0342273A1 Bus terminal |
| 11/14/1989 | US4881222 Multicarrier demodulator |
| 11/07/1989 | US4879756 Radio broadcast communication systems |
| 11/07/1989 | US4879727 Adaptive threshold sampling controller |
| 10/19/1989 | WO1989010033A1 A regenerative node for a communications network |
| 10/17/1989 | EP0289526A4 Adaptive threshold sampling method. |
| 10/11/1989 | EP0336766A1 A regenerative node for a communications network |
| 10/11/1989 | EP0336247A2 Method and apparatus for digital transmission of information in short wave radio networks |
| 10/04/1989 | EP0334867A1 Duplex data transmission. |
| 09/28/1989 | DE3809300A1 Device for mutually transmitting direct current signals and audio-frequency signals |
| 09/28/1989 | DE3808829A1 Method for data transmission on lines of an integrated services digital communications network |
| 09/27/1989 | EP0334569A2 Method of and system for transmitting information |
| 09/27/1989 | EP0334443A1 Binary-to-ternary converter for combining two binary signals |
| 09/26/1989 | US4870566 Scannerless message concentrator and communications multiplexer |
| 09/26/1989 | CA1260573A1 Low power line driving digital transmission system |
| 09/19/1989 | CA1259718A1 Optical local area network using a common optical carrier with separate user angle modulation |
| 09/13/1989 | CN2044395U Long distance multiple line transmission device modulated by pulse code |
| 09/12/1989 | US4866711 Method of multiplex/demultiplex processing of information and equipment for performing the method |
| 09/12/1989 | CA1259419A1 Sound transmission method for data way system |
| 09/05/1989 | US4864567 High throughput data communication system |
| 08/29/1989 | US4862483 Channel estimation and detection for digital communication systems |
| 08/29/1989 | CA1258895A1 Receiver/driver/repeater interface |
| 08/29/1989 | CA1258893A1 Transmission line receiver/transmitter |
| 08/22/1989 | US4860285 Master/slave synchronizer |
| 08/22/1989 | US4859877 Bidirectional digital signal transmission system |
| 08/16/1989 | CN1034836A Pcm coder monitoring method and equipment |
| 07/27/1989 | WO1989006883A1 Alternating sequential half duplex communication system |
| 07/26/1989 | EP0324975A2 Transmission system for telephone communication or data transfer |
| 07/24/1989 | EP0308449A4 Transfer of messages in a multiplexed system. |
| 07/18/1989 | US4849962 Communications control unit |
| 07/18/1989 | US4849818 Television receiver with receiving devices for processing videotext and teletext signals |
| 07/12/1989 | EP0323586A2 Transmission system |
| 07/11/1989 | CA1257381A1 Phase locked loop system |
| 07/11/1989 | CA1257355A1 Circuit arrangement for the transmission of binary signals |
| 07/06/1989 | DE3744072A1 Communication system for synchronous and asynchronous data transmission |
| 07/06/1989 | DE3742672A1 Circuit arrangement for converting single-current signals into double-current signals |
| 06/28/1989 | CN1004677B Two wires communication system |
| 06/27/1989 | US4843352 Modulator for generating a burst-like modulated wave |