| Patents for H04L 12 - Data switching networks (448,999) |
|---|
| 05/07/1987 | WO1987002830A1 Connector interface |
| 05/05/1987 | US4663767 Optical data bus having a statistical access method |
| 05/05/1987 | US4663758 Wideband integrated services local communication system |
| 05/05/1987 | US4663757 Packet switched local network with priority random splitting and conflict detection |
| 05/05/1987 | US4663754 Remote control system for data communication utilizing modems |
| 05/05/1987 | US4663748 Local area network |
| 05/05/1987 | CA1221433A1 Multi-user serial data bus |
| 04/29/1987 | EP0219549A1 Loop transmission system with frame synchronization control. |
| 04/28/1987 | US4661966 Method and apparatus for adjusting transmission rates in data channels for use in switching systems |
| 04/28/1987 | US4661952 Method for transmitting data in a telecommunications exchange |
| 04/28/1987 | US4661951 Communication network in which at least one station comprises a determination-type message filtering device |
| 04/28/1987 | US4661950 Information transmission system in a local area network suitable for collision detection |
| 04/28/1987 | US4661947 Self-routing packet switching network with intrastage packet communication |
| 04/28/1987 | US4661902 Local area network with carrier sense collision avoidance |
| 04/28/1987 | CA1221174A1 Data communication system |
| 04/28/1987 | CA1221171A1 Bridge circuit for interconnecting networks |
| 04/28/1987 | CA1221156A1 Data call transfer preindication |
| 04/23/1987 | WO1987002535A1 Communications network |
| 04/23/1987 | WO1987002534A1 Process and related device for remote-controlled switching-on of terminal equipments used in data transmission and tele-processing |
| 04/23/1987 | DE3537432A1 Connecting line for transmitting signals |
| 04/23/1987 | DE3537353A1 Data transmission system with a ring-shaped transmission line |
| 04/22/1987 | EP0219049A2 High-speed packet-switched communications system with end-to-end flow control and retransmission |
| 04/21/1987 | US4660201 Failure notice system in a data transmission system |
| 04/21/1987 | US4660195 Channel detecting circuit in a receiver in a time-division multiplex transmission system |
| 04/21/1987 | US4660194 Method and apparatus for testing a subscriber's line circuit in a packet switched multiplexed data/voice communication system |
| 04/16/1987 | DE3603907C1 Method and device for time division multiplex operation of a changing number of stations operating autonomously on one communications channel |
| 04/15/1987 | EP0218362A2 Distributed electronic mailbox system |
| 04/15/1987 | EP0218161A2 Method of analysing and synthesizing binary characters |
| 04/15/1987 | EP0217955A1 Transmitting data processing system. |
| 04/15/1987 | EP0217925A1 Redundant termination of a communication line |
| 04/14/1987 | US4658396 Redundancy arrangement for a local area network |
| 04/14/1987 | CA1220577A1 Network protocol for integrating synchronous and asynchronous traffic on a common serial data bus |
| 04/09/1987 | WO1987002207A1 Packet switching system |
| 04/09/1987 | WO1987002157A1 Mesh-based switching network |
| 04/09/1987 | WO1987002155A1 Communication network for multiprocessor packet communication |
| 04/08/1987 | EP0217571A2 Data transfer communication system |
| 04/08/1987 | EP0217359A2 Link controller |
| 04/08/1987 | EP0217184A2 Method for communicating with remote units of a distributive data processing system |
| 04/07/1987 | US4656628 Digital signal transmission system |
| 04/07/1987 | US4656627 Multiphase packet switching system |
| 04/07/1987 | US4656624 Operator communication arrangements for operator assistance systems |
| 04/07/1987 | US4656623 Agent communication arrangements for telecommunication systems |
| 04/07/1987 | US4656622 Multiple paths in a self-routing packet and circuit switching network |
| 04/07/1987 | US4656471 Circuit arrangement for connecting a subscriber to a bus line via switch means under which prevents disabling of the bus line in the event of driver failure |
| 04/02/1987 | DE3534870A1 Control circuit for a link between two autonomous electrical data buses |
| 04/01/1987 | EP0216720A1 System for the assembly and bit-by-bit serialization of packet multiplex signals |
| 04/01/1987 | EP0216379A2 Communication method and equipment therefor |
| 04/01/1987 | EP0216372A2 Data bus system for vehicles |
| 04/01/1987 | EP0216214A2 Method for the automatic level adjustment in a local area network, in particular for a multiprocessor arrangement with a bus system of optical fibres, for the purpose of collision detection |
| 03/31/1987 | US4654890 Multiplex communication system |
| 03/31/1987 | US4654841 Method of transferring information via a digital telecommunication network and network for such transferring |
| 03/31/1987 | US4654655 Multi-user serial data bus |
| 03/31/1987 | US4654654 Data network acknowledgement arrangement |
| 03/26/1987 | DE3534206A1 Circuit arrangement with a plurality of decentralised modules and at least one central module which is connected to them |
| 03/25/1987 | EP0215526A2 Data communication system |
| 03/25/1987 | EP0215463A2 Routing control method in a packet switching network |
| 03/25/1987 | EP0215276A1 Method and circuit arrangement for the transmission of data signals to a group of control devices within a loop system |
| 03/24/1987 | US4653112 Image data management system |
| 03/24/1987 | US4653047 Communication subsystem |
| 03/24/1987 | US4652874 Serial communication interface for a local network controller |
| 03/18/1987 | EP0214625A2 Flow control scheme for a switching network |
| 03/18/1987 | EP0214593A2 Ring packet switch |
| 03/18/1987 | EP0214476A1 Method and circuit arrangement for the transmission of data signals between two control devices within a loop system |
| 03/18/1987 | EP0214475A1 Circuit arrangement for the transmission of data signals between control devices interconnected by a loop system |
| 03/18/1987 | EP0214474A1 Method and circuit arrangement for the transmission of data signals between control devices interconnected by a loop system |
| 03/18/1987 | EP0214473A1 Circuit arrangement for the transmission of data signals between control devices interconnected by a loop system |
| 03/18/1987 | EP0214352A1 Adaptive packet/circuit switched transportation method and system |
| 03/18/1987 | EP0214159A1 Data bus pilot tone |
| 03/17/1987 | US4651318 Self-routing packets with stage address identifying fields |
| 03/17/1987 | US4651316 Data link extension for data communication networks |
| 03/17/1987 | CA1219386A1 Distributed bus asynchronous digital time division multiplexing system |
| 03/12/1987 | WO1987001545A1 Packet switched local network with priority random splitting and conflict detection |
| 03/12/1987 | WO1987001544A1 Data processing system for a local area network |
| 03/12/1987 | WO1987001543A1 Interconnection of broadcast networks |
| 03/11/1987 | EP0214020A1 Data packets transmission method over a network or a transmission chain, and device for carrying out the method |
| 03/11/1987 | EP0213640A2 Demand assigned reformatting with an overflow area for time division multiple access communication |
| 03/11/1987 | EP0213606A2 Industrialized token passing network |
| 03/11/1987 | CN85106845A Circuit for restricting transient tremble in exchange duration |
| 03/10/1987 | US4649548 Local computer network transceiver |
| 03/10/1987 | US4649535 Method and apparatus for maintaining a dynamic logical ring in a token passing LAN |
| 03/10/1987 | US4649534 Telecomputer package switching system |
| 03/10/1987 | CA1219092A1 Time-division-multiplex loop telecommunication system comprising a first and a second transmission line |
| 03/10/1987 | CA1219091A1 Method of and arrangement for controlling access to a time-division multiplex message transmission path |
| 03/10/1987 | CA1219049A1 Fault diagnostic distributed processing method and system |
| 03/05/1987 | DE3530791A1 Method for information transmission and network |
| 03/04/1987 | EP0213063A1 Circuit arrangement for testing a passive bus network (CSMA/CD access method) |
| 03/04/1987 | EP0212806A2 Communications network |
| 03/04/1987 | EP0212701A1 Method of getting access to and utilizing a message channel in a communication system and arrangement for performing the method |
| 03/04/1987 | EP0212424A2 Trunk coupling unit |
| 03/04/1987 | EP0212031A1 Dynamic bandwidth allocation mechanism between circuit slots and packet bit stream in a communication network |
| 03/04/1987 | EP0211861A1 Portable testing device for monitoring a data communication system. |
| 03/04/1987 | EP0211849A1 Pager system and communication protocol. |
| 03/04/1987 | EP0146562B1 Rearrangeable multiconnection switching networks |
| 03/04/1987 | CN86104678A Network collision detection and avoidance apparatus |
| 03/03/1987 | US4648123 Remote level measurement system for use in a multi-terminal communications system |
| 03/03/1987 | US4648088 Distributed control time division multiplex ring communication apparatus |
| 03/03/1987 | US4647925 Circuit employing intercoupled state machines for transmitting and receiving multiformatted sequences of voice and data characters |
| 03/03/1987 | US4647912 Coupling discriminator and interface adaptor |
| 03/03/1987 | US4647721 Telephone activated power controller |
| 02/26/1987 | WO1987001254A1 Multiplexed digital packet telephone system |