| Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004) |
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| 03/08/1988 | US4730310 Terrestrial communications system |
| 03/08/1988 | US4730305 Fast assignment technique for use in a switching arrangement |
| 03/08/1988 | US4730304 Data base creation in stored program controlled switching systems |
| 03/08/1988 | US4730303 Digital switching system with host and remote duplicated transmission controllers |
| 03/08/1988 | CA1233899A1 Routing address bit selection in a packet switching network |
| 03/02/1988 | EP0257672A1 Digital telecommunication system comprising an exchange and a group of multi-access telephone terminals |
| 03/02/1988 | CN87105673A Three time slot digital subscriber line termination |
| 02/24/1988 | EP0256844A2 Apparatus and method for interfacing a digital subscriber line |
| 02/24/1988 | EP0256526A2 Packet-switched communications network for efficiently switching non-burst signals |
| 02/24/1988 | EP0256297A2 A cross-point bit-switch |
| 02/24/1988 | EP0256027A1 Method for the simultaneous operation of several terminal equipments on one network termination unit of a broadband network. |
| 02/24/1988 | CN87105391A Digital telecommunication system comprising an exchange and a group of multi-access telephone terminals |
| 02/23/1988 | US4727495 Data communication system |
| 02/23/1988 | CA1233226A1 Telephone switching system |
| 02/18/1988 | EP0138952A4 A self-routing switching network. |
| 02/17/1988 | EP0255903A2 Processor-controlled telephone exchange with a central operation device and operation terminals |
| 02/16/1988 | US4726015 Digital signal channel distributor |
| 02/16/1988 | US4725835 Time multiplexed bus matrix switching system |
| 02/11/1988 | WO1988001075A1 Current-limiting circuit |
| 02/10/1988 | EP0169208B1 Self-routing packet switching network |
| 02/10/1988 | EP0158645B1 Data communication method and circuitry |
| 02/10/1988 | CN87105368A Telecommunication exchange equipment incorporating multiparty lines using integrated service digital network techniques |
| 02/10/1988 | CN87105312A Modular structure of integrated service data network communication system of producing and displaying fault literal information |
| 02/09/1988 | CA1232692A1 Terminal matching unit for digital circuits |
| 02/09/1988 | CA1232666A1 Arrangement for wideband transmission via a switched network |
| 02/09/1988 | CA1232665A1 Distributed packet switching arrangement |
| 02/09/1988 | CA1232661A1 Fail-safe digital phone |
| 02/04/1988 | DE3625857A1 Communication branch exchange for voice and/or data communication services |
| 02/03/1988 | EP0255290A2 Time-slot assigner multiplexer |
| 02/03/1988 | EP0255169A2 Telecommunication exchange equipment incorporating multiparty lines using integrated service digital network techniques |
| 02/03/1988 | EP0255069A1 Circuit arrangement for serial data transmission |
| 02/03/1988 | EP0254920A1 System for connecting telephone subscribers organised around a digital time division exchange |
| 02/03/1988 | EP0254855A1 Circuit arrangement for centrally controlled time division multiplex telecommunication exchanges, especially PCM telephone exchanges, with line groups connected to a coupling field |
| 02/02/1988 | US4723274 Arrangement for transferring data to an attendant console |
| 02/02/1988 | US4723273 Discretionary call forwarding |
| 02/02/1988 | US4723272 Telecommunication system, in particular telephone system |
| 02/02/1988 | CA1232379A1 Digital link for telephone station sets |
| 02/02/1988 | CA1232346A1 Time division multiplexed computerized branch exchange |
| 01/28/1988 | WO1988000786A2 Security arrangement for a telecommunications exchange system |
| 01/28/1988 | DE3623850A1 Message for requesting operating data and maintaining a communication system |
| 01/27/1988 | EP0254559A2 Security arrangement for a telecommunications exchange system |
| 01/27/1988 | EP0254115A1 ISDN communication system of modular structure with creation and indication of fault texts |
| 01/27/1988 | EP0197930B1 Arrangement for path selection in a communications network |
| 01/26/1988 | US4722082 ISDN subscriber terminal control system |
| 01/21/1988 | DE3623535A1 Circuit arrangement for controlling voice announcements in digital telephone switching systems |
| 01/21/1988 | DE3623501A1 Circuit arrangement for matching a S0 interface to a digital telephone switching system |
| 01/20/1988 | EP0253421A1 Communication network, more specifically a telephone network and data communication network composed of a set of nodes, in which specific facilities within optionally determined domains can be offered fully integrated |
| 01/19/1988 | US4720854 Architecture for distributed control telecommunication systems |
| 01/19/1988 | US4720850 Communication system control arrangement |
| 01/19/1988 | CA1231772A1 Programmable feature card |
| 01/13/1988 | CN87104377A Isdu d channel handler |
| 01/12/1988 | US4719617 Communication system |
| 01/07/1988 | EP0250936A1 Method for controlling the information transmission of switched four-wire connections, especially semi-permanent switched connections in digital TDM exchanges |
| 01/07/1988 | EP0148175B1 Control information communication arrangement for a time division switching system |
| 01/07/1988 | EP0102384B1 Bidirectional dual network |
| 01/05/1988 | US4718062 Telecommunication system for alternatingly transmitting circuit-switched and packet-switched information |
| 01/05/1988 | US4718058 Digital switching network for switching signals of different bit rates |
| 01/05/1988 | US4718057 Streamlined digital signal processor |
| 12/29/1987 | US4716562 Telephone system |
| 12/23/1987 | EP0250160A2 Combined circuit switch and packet switching system |
| 12/23/1987 | EP0250075A2 ISDN D channel handler |
| 12/23/1987 | EP0249836A1 Switching device for broad-band signals |
| 12/22/1987 | US4715032 Method and apparatus for the connection of a closed ring through a telephone exchange |
| 12/22/1987 | US4715028 Optical communication system |
| 12/22/1987 | US4715026 Circuit arrangement for a communications system for the transmission of message information from narrowband and broadband terminal equipment within a local network constructed as a loop |
| 12/22/1987 | CA1230662A1 Integrated digital network (idn) |
| 12/16/1987 | EP0249112A2 Optical communication system |
| 12/16/1987 | EP0249056A2 Two-way optical fiber transmission network |
| 12/15/1987 | US4713806 Communication system control arrangement |
| 12/15/1987 | US4713805 Method and device for selecting one station from a set of stations dialoging with a main station |
| 12/15/1987 | CA1230402A1 Multiple channel depacketizer |
| 12/15/1987 | CA1230401A1 Digital peripheral switchboard for interconnecting subscribers |
| 12/09/1987 | EP0248475A1 System for searching idle switching time slots defining a selected fourwire communication connection through a switching network working on the basis of time and space-division |
| 12/09/1987 | EP0248325A2 Method for the through-connection testing of a broadband switching network |
| 12/03/1987 | WO1987007463A1 Method and apparatus for providing variable reliability in a telecommunication switching system |
| 12/02/1987 | EP0247675A1 Transmitter for ISDN S-bus interface circuit |
| 12/02/1987 | EP0247131A1 Procedure and device for crosspoint-switching of synchronous or asynchronous data transmission lines, particularly for serial data transmission |
| 12/01/1987 | US4710952 Distributed control type electronic switching system |
| 12/01/1987 | US4710917 Video conferencing network |
| 12/01/1987 | US4710916 Switching apparatus for burst-switching communications system |
| 12/01/1987 | US4710914 Optical fiber telecommunication device |
| 11/25/1987 | CN87103575A Microprocessor back-up system |
| 11/25/1987 | CN87100702A Communications switching system |
| 11/24/1987 | CA1229677A1 Time-slot interchanger for fast circuit switching |
| 11/19/1987 | EP0246079A2 Microprocessor back-up system |
| 11/19/1987 | EP0245996A2 Method of and switch for switching information |
| 11/17/1987 | US4707831 Packet switching system |
| 11/17/1987 | US4707826 Circuit and packet data transmission system |
| 11/17/1987 | US4707825 Methods of installing and assigning control processors in a distributed-control communications system |
| 11/17/1987 | US4707694 Telephone system port communication method and apparatus |
| 11/17/1987 | CA1229399A1 T-s-t-s-t digital switching network |
| 11/12/1987 | DE3615235A1 Method for synchronising and routing in partially meshed communication networks |
| 11/11/1987 | EP0245025A2 Response system of a terminal to an incoming call |
| 11/10/1987 | US4706279 Arrangement for initializing a CENTREX console interface circuit |
| 11/10/1987 | US4706278 Interface circuit for transmitting keycodes to a CENTREX |
| 11/10/1987 | US4706277 Interface circuit for transmitting command codes to an attendant console |
| 11/10/1987 | US4706276 Arrangement for transferring data to a centrex |
| 11/10/1987 | US4706244 Frequency multiplexed telephone system |
| 11/10/1987 | US4706242 Digital telecommunication system |
| 11/10/1987 | US4706241 Low speed gate circuit |