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)
11/1991
11/28/1991WO1991018463A1 Switching architecture and method
11/28/1991WO1991018462A1 High bandwidth fault tolerant lan
11/28/1991DE4017041A1 Exchange appts. for fully synchronised network of exchanges - sends priority message to particular exchange or generally according to relationship between slave and master priorities
11/28/1991DE4016580A1 TDM signal transmission device esp. for industrial robot - comprises transmission units connected to addressable input and output modules and managed by co-ordinating control logic
11/27/1991EP0458717A2 Method for automated transmission of failure of delivery message in a data processing system
11/27/1991EP0458628A2 Broad band switching network
11/27/1991EP0458553A2 Packet routing switch
11/27/1991EP0458552A2 Dynamic hierarchical routing directory organization associative memory
11/27/1991EP0458438A2 Data element switch
11/27/1991EP0458235A1 Self routing ATM multiple path switching network with availability signalling
11/27/1991EP0458033A2 Flow control for high speed networks
11/26/1991US5068916 Coordination of wireless medium among a plurality of base stations
11/26/1991US5068890 Combined signal and electrical power distribution system
11/26/1991US5068849 Cyclic data transmission method
11/26/1991CA2040380A1 Data element switch
11/26/1991CA1292583C Apparatus for reconstructing and multiplexing frames of various origins made up of a variable number of packets of fixed length
11/26/1991CA1292541C Hybrid time multiplex switching system with optimized buffer memory
11/22/1991WO1991018461A1 Method for improving the transmission of information in the form of data packets, in accordance with a distributed queuing protocol
11/21/1991EP0457673A2 Signal transmission system for a home network
11/21/1991EP0457620A2 Chordal ring network
11/21/1991EP0457445A2 Automatic layout of network topology
11/21/1991EP0456947A1 Hybrid switching system for a communication node
11/21/1991EP0456914A1 Transmission quality assessment arrangement
11/21/1991EP0456701A1 Improved deterministic timed bus access method.
11/21/1991DE4033107C1 Establishing connections between nodes of multi-hop radio network - using at least one stored routing table to establish connection between two spaced nodes via number of successive hops
11/21/1991DE4015457A1 Fernmess- und stellsystem Telemetry and ordering system
11/21/1991DE4010553C1 Data transmission installation converting words packed in sentence - is installed between data source and data sink having unpacked words in specific processing data format
11/19/1991US5067127 Congestion avidance control system and method for communication network
11/19/1991US5067124 Packet switching network for a communication system
11/19/1991US5067123 System for controlling data transmission in atm switching network
11/19/1991US5067074 Control of overload in communications networks
11/19/1991CA1292333C Digital time division multiplex systems and method of controlling same
11/19/1991CA1292324C Multitask subscription data retrieval system
11/19/1991CA1292322C Bridge system for connecting networks
11/14/1991WO1991017610A1 Nonblocking parallel banyan network
11/14/1991WO1991017609A1 Fault tolerant serial communications network
11/14/1991DE4014568A1 Switch=off circuitry for bus system or data transmission line - has control operating circuit breaker at transmitting or receiving end upon voltage drop
11/13/1991EP0455959A2 Method and system for routing packets in a packet communication network
11/13/1991EP0455827A1 Changing over method for doubled atm switch system
11/12/1991US5065399 Telecommunication network trouble recovery system
11/12/1991US5065398 TDMA satellite communication method and system
11/12/1991US5065397 Data synchronous transfer system using a fiber distributed data exchange interface
11/12/1991US5065394 Packet routing switch
11/12/1991US5065153 Contention control system
11/12/1991US5065133 Method and apparatus converting digital signals to analog signals and simultaneous transmission of ac power and signals over wire conductors
11/12/1991CA1292077C Broadcasting messages in a distributed processing system
11/12/1991CA1292054C Packet switching equipment and a packet switching method for controlling packet switched networks
11/12/1991CA1292053C Time-division channel arrangement
11/09/1991WO1991017615A2 Diagnostic hardware for serial datalink
11/07/1991DE4014396A1 Passive optical communications system for telecommunications network
11/06/1991EP0455402A2 Automatic discovery of network elements
11/06/1991EP0455281A1 Digital data packet switching module for allocating empty packets to a crosspoint switch
11/06/1991EP0454851A1 Network control system
11/06/1991EP0288464B1 Local area network system
11/06/1991CN1056029A System for cross-connecting high speed digital signals
11/06/1991CN1056028A Virtual tributary cross connect switch and switch network utilizing same
11/06/1991CN1014666B Communication system having unified messaging
11/05/1991US5063612 Network transceiver
11/05/1991US5063595 Optical communications network
11/05/1991US5063562 Flow control for high speed networks
11/05/1991US5063561 Procedure and apparatus for transmitting binary messages in a serial communication bus
11/05/1991US5063523 Network management system with event rule handling
11/05/1991CA2041747A1 Passive optical telecommunication system
11/05/1991CA1291806C Switching system and method of construction thereof
10/1991
10/31/1991WO1991016777A1 Process for determining quality parameters in a transmission path for digital-data streams with a cellular structure
10/31/1991WO1991016775A1 Communication system with adaptive media access control
10/31/1991WO1991014326A3 Switching networks with expansive and/or dispersive logical clusters for message routing
10/31/1991DE4013628A1 Async. transfer mode communications exchange
10/31/1991DE4013526A1 Data transmitting circuit between devices - uses two line bus and inductor premagnetisation of transmitter core
10/30/1991EP0454505A2 Multipath transmission system
10/30/1991EP0454364A2 High speed transport protocol with two windows
10/30/1991EP0454218A1 Time division multiplex transfer system
10/30/1991EP0454217A1 Transmission system with recording of untransmitted packets
10/30/1991EP0453863A2 Methods and apparatus for implementing a media access control/host system interface
10/30/1991EP0453607A1 Method and circuit arrangement for reducing the loss of information packets transmitted through a packet switch
10/30/1991EP0453606A1 Method and circuit arrangement for reducing the loss of information packets transmitted through a packet switch
10/30/1991EP0453562A1 User interface for management
10/29/1991US5062106 ATM exchange system
10/29/1991US5062104 Digital service unit for connecting data processing equipment to a telephone system based computer network
10/28/1991CA2041309A1 Multipath transmission system
10/28/1991CA2041190A1 Method and circuit arrangement for reducing the loss of message packets that are transmitted via a packet switching equipment
10/28/1991CA2041176A1 Method and circuit arrangement for reducing the loss of message packets that are transmitted via a packet switching equipment
10/24/1991WO1991016679A1 Multichannel backplane bus system architecture
10/24/1991DE4012904A1 Adaptive routing and media access control for mobile communications - using decentralised control via information tables for all stations or those within relevant area
10/24/1991DE4012850A1 Digital transmission path quality parameter measurement - using measuring signal with sequence of test cells each containing binary test pattern
10/24/1991CA2079671A1 Multichannel backplane bus system architecture
10/23/1991EP0453355A2 Congestion avoidance in high-speed network carrying bursty traffic
10/23/1991EP0453335A1 Method and device for controlling the appliances of an integrated household network
10/23/1991EP0453273A2 Loop back method for loop type LAN transmission line
10/23/1991EP0453128A2 Multiple call control method in a multimedia conferencing system
10/23/1991EP0452658A1 Connection unit for domestic applications
10/23/1991EP0452487A1 Automatic fault recovery in a packet network.
10/23/1991EP0452479A1 Automatic fault recovery in a packet network.
10/22/1991US5060239 Transfer strobe time delay selector and method for performing same
10/22/1991US5060228 Bridge communication system
10/22/1991US5060226 Telecommunications network test system
10/17/1991WO1991015909A1 Call admission control method and arrangement in a packet communication system
10/17/1991WO1991015908A1 Ring communication system
10/16/1991EP0452223A2 Telecommunications network with plesiochronous transfer mode
10/16/1991EP0452124A2 Wireless information transmission system
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