Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 12 - Data switching networks
Patents for H04L 12 - Data switching networks (448,999)
12/1984
12/04/1984US4486877 Packet switching loop-around network and facilities testing
12/04/1984US4486853 Apparatus for receiving and displaying continuously updated data
12/04/1984US4486852 Synchronous time-shared data bus system
12/04/1984US4486829 Method and apparatus for detecting a faulty computer in a multicomputer system
12/04/1984CA1179048A1 Interface unit for a modular telecommunication system
12/04/1984CA1179047A1 Modular telecommunication system
12/04/1984CA1179046A1 Apparatus and method for controlling a modular telecommunication system
12/04/1984CA1179032A1 Coaxial cable/fiber optic bus network
11/1984
11/28/1984EP0126484A2 Time switch in a time division switching network
11/28/1984EP0126482A2 Telecommunication system for stream traffic as well as for burst traffic
11/28/1984EP0126413A2 Telecommunication system for stream traffic as well as for burst traffic
11/28/1984EP0126196A1 Asynchronous time-division switching network for point-to-point, merging and broadcast communications
11/27/1984US4485470 Data line interface for a time-division multiplexing (TDM) bus
11/27/1984US4485468 Control word generation method and source facilities for multirate data time division switching
11/22/1984WO1984004644A1 Rearrangeable multiconnection switching networks
11/22/1984WO1984004638A1 Communication network
11/22/1984EP0116603A4 Digital signal transmission and receiving apparatus.
11/21/1984EP0125809A2 Distributed computer control system
11/21/1984EP0125744A2 Closed loop telecommunication system
11/20/1984US4484353 Method for controlling the information stream in a cell constituting several radio channels and a device for carrying out this method
11/20/1984US4484328 Television line multiplexed data communication system
11/20/1984US4484326 Packet load monitoring by trunk controllers
11/20/1984US4484306 Method and apparatus for controlling access in a data transmission system
11/20/1984CA1178355A1 Local network interface for use in a multi-station word processing system
11/14/1984EP0125095A1 Packet communication system
11/14/1984EP0124591A1 Packet load monitoring by trunk controllers
11/13/1984US4482999 Method of transmitting information between stations attached to a _unidirectional transmission ring
11/13/1984US4482980 Communications system
11/13/1984CA1177931A1 Two-way optical data communication system
11/08/1984WO1984004437A1 Digital communications system
11/08/1984WO1984004436A1 Integrated voice/data/control switching system
11/08/1984WO1984004435A1 Variable bandwidth switching system
11/07/1984EP0124381A1 Contention-type data communication system
11/06/1984US4481626 Transceiver multiplexor
11/06/1984US4481623 Speed independent arbiter switch employing M-out-of-N codes
10/1984
10/31/1984EP0123507A1 Data communication system and apparatus
10/31/1984EP0123371A1 Multi-processor system
10/24/1984EP0122765A2 Network protocol for integrating synchronous and asynchronous traffic on a common serial data bus
10/24/1984EP0122705A2 Bath tub control circuits
10/24/1984EP0080481B1 Method and device for the asynchronous series communication of the multipoint type between a plurality of logic transceivers
10/23/1984US4479228 Local computer network transceiver
10/23/1984US4479195 Data conference system
10/17/1984EP0122007A1 Loop transmission system
10/16/1984US4477899 Digital data transmission system with time division/packet transformation function
10/16/1984US4477809 Method for random-access radio-frequency data communications
10/16/1984CA1176339A1 Signalling system and signal control equipment for multi-address calling
10/11/1984WO1984004015A1 A self-routing switching network
10/11/1984WO1984004014A1 A distributed prioritized concentrator
10/11/1984WO1984004011A1 A wideband digital switching network
10/11/1984WO1984003977A1 A self routing steering network
10/10/1984EP0121410A1 Bus-configured local area network with data exchange capability
10/10/1984EP0121188A2 Method and circuit arrangement for the transmission of data signals between subscriber's stations of a data network
10/10/1984EP0121034A2 Interfacing a communication network
10/09/1984US4476467 Random entry intercomputer network with collision prevention
10/09/1984US4476347 Method and circuit arrangement for transmitting communication signals between switching centers of first and second switching networks operating with different transmission procedures
10/03/1984EP0120640A2 Data distribution network
10/03/1984EP0120495A1 Device for coded data exchange between stations
10/03/1984EP0120323A1 Arrangement for local data transmission between a data processing unit and several data terminals over standard transmission interfaces
10/03/1984EP0119999A1 Cash flow monitoring system
10/02/1984US4475192 Data packet flow control scheme for switching networks
10/02/1984US4475191 Distributed time division multiplexing bus
09/1984
09/26/1984EP0119843A2 A system for linking channel group in digital communication network
09/19/1984EP0119105A2 Integrated circuit/packet switching system
09/19/1984EP0119039A2 Token access controller protocol and architecture
09/19/1984EP0119004A2 Ring communications system
09/19/1984EP0119003A2 Method and apparatus for the detection and regeneration of a lost token in a token based data communications network
09/19/1984EP0118767A2 Method for a telecommunication exchange, especially a private telephone exchange with a data loop transmission system, especially with an optical data loop transmission system
09/19/1984EP0118510A1 Data conference system
09/18/1984US4472801 Distributed prioritized concentrator
09/18/1984US4472712 Multipoint data communication system with local arbitration
09/12/1984EP0117916A2 Optical star bus with an active coupler
09/11/1984US4471466 Apparatus for conforming the length of a data stream through a transmission line
09/05/1984EP0117677A2 Data communication systems
09/05/1984EP0117442A2 Distributed bus control system
09/05/1984EP0117362A2 Broad band network system
09/04/1984US4470154 Optical communication network
09/04/1984US4470140 Distributed switching network
08/1984
08/29/1984EP0116962A2 Frame synchronizing system
08/29/1984EP0116603A1 Digital signal transmission and receiving apparatus
08/28/1984US4468785 Telemetry system with signal booster for digital data transmission through a transmission line
08/28/1984US4468734 Method of purging erroneous signals from closed ring data communication networks capable of repeatedly circulating such signals
08/28/1984US4468733 Multi-computer system with plural serial bus loops
08/16/1984WO1984003192A1 Data network interface
08/15/1984EP0115894A1 TDM loop telecommunication system comprising a first and a second transmission line
08/15/1984EP0115883A2 Method of controlling the access to a TDM communication channel
08/15/1984EP0115761A2 Method for determining physical order of active stations on a token ring
08/15/1984EP0115658A1 Method and system of transmitting digital information in a transmission ring
08/14/1984US4466096 In a communications system
08/14/1984US4466063 System intercommunication processor used in distributed data processing system
08/14/1984US4466060 Message routing in a computer network
08/14/1984US4466001 For a two-way communication system
08/14/1984US4466000 Data communication system
08/14/1984CA1172739A1 Modular telecommunication system
08/14/1984CA1172720A1 Packet-based telecommunications systems
08/08/1984EP0114882A1 Digital communication system and control method.
08/07/1984US4464749 Bi-directional token flow system
08/07/1984US4464658 Multipoint data communication system with collision detection
08/07/1984CA1172332A1 Method and arrangement for distribution of send permission to terminals in a telecommunication network
08/07/1984CA1172330A1 Multiport modem and the use thereof in a method and a system for testing a multilevel communication network
07/1984
07/31/1984US4463352 Fault tolerant, self-powered data reporting system
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