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)
06/1991
06/19/1991EP0432678A1 High-speed synchronous transmission line access terminal
06/19/1991EP0432582A1 Differential bus with specified default value
06/19/1991EP0432428A2 Byte wide repeat filter
06/19/1991EP0432346A1 Data exchange apparatus
06/19/1991EP0432315A1 System and method for controlling the access rates of packet switching network stations
06/19/1991CN1012930B Method of and switch for switching information
06/18/1991US5025500 Apparatus for providing multiple controller interfaces to a standard digital modem and including integral conflict resolution
06/15/1991CA2025191A1 Method of providing effective priority access in a dual bus system
06/14/1991CA2032101A1 Synchronous to asynchronous converter
06/13/1991WO1991008633A1 Basic element for the connection network of a fast packet switching node
06/13/1991WO1991008629A1 Wireless in-building telecommunications system for voice and data communications
06/13/1991WO1991008628A1 Congestion management based on multiple framing strategy
06/13/1991WO1991008627A1 Packet filter for bridge between networks
06/12/1991EP0431751A1 Repeaters for secure local area networks
06/12/1991EP0431635A2 Ring type LAN having fault processing system
06/12/1991EP0431511A1 Local network for data transmission
06/12/1991EP0431438A1 Flow control procedure for a broadband integrated services digital telecommunication network, and network to realize the procedure
06/12/1991EP0431316A1 Arrangement for contention resolution in a telephone exchange of small or medium capacity
06/12/1991EP0431231A1 Generation monitor system for customizing a data communication network
06/12/1991EP0430955A1 Communication system.
06/12/1991EP0396589A4 Method and apparatus for automatic loading of a data set in a node of a communication network
06/11/1991US5023942 Fault tolerant data transmission network
06/11/1991US5023873 Method and apparatus for communication link management
06/11/1991US5023872 FDDI bit error rate tester
06/11/1991US5023871 Method of controlling the operation of stations in a ring network
06/11/1991US5023867 Protocol and apparatus for selectively scanning a plurality of lines connected to a communication device
06/11/1991US5023864 Crossover network utilizing two-dimensional arrays of nodes
06/11/1991US5023604 Communication system
06/08/1991WO1991009479A1 Communications system
06/08/1991CA2031708A1 Data communication local area network
06/08/1991CA2031420A1 Ring type lan having fault processing system
06/06/1991DE3939828A1 Data transmission with unauthorised access prevention - encoding all data after preamble and transmitting via bus system
06/05/1991EP0430571A2 Dynamic window sizing in a data network
06/05/1991EP0430570A2 Method and apparatus for congestion control in a data network
06/05/1991EP0430569A1 Fault tolerant interconnection networks
06/05/1991EP0430053A2 Ring latency timer
06/05/1991EP0430052A2 Code points for transferring data from a network transmission medium to a station on the network
06/05/1991EP0430051A2 Byte wide elasticity buffer
06/05/1991EP0430050A2 Asynchronous priority select logic
06/05/1991EP0429882A2 Low-end high-performance switch subsystem architecture
06/05/1991EP0429647A1 Data pick-up circuit for serial controller
06/05/1991EP0388436A4 Network and intelligent cell for providing sensing, bidirectional communications and control
06/04/1991US5022046 Narrowband/wideband packet data communication system
06/04/1991US5022025 Self-routing switch and its routing method
06/04/1991US5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
06/04/1991US5021949 Method and apparatus for linking an SNA host to a remote SNA host over a packet switched communications network
06/04/1991US5021777 Mode-selectable communications system
06/02/1991CA2029784A1 Byte wide elasticity buffer
05/1991
05/30/1991WO1991008632A1 Changing over method for doubled atm switch system
05/29/1991EP0429055A2 Data format for packets of information
05/29/1991EP0429054A2 Data representation and protocol
05/29/1991EP0428810A1 Method for identifying bus ticket-holders
05/29/1991EP0428535A1 Multilevel concurrent communications architecture for multiprocessor computer systems
05/28/1991US5020152 Fault tolerant-fiber optic coupler/repeater for use in high speed data transmission and the like
05/28/1991US5020058 Packet voice/data communication system having protocol independent repetitive packet suppression
05/28/1991US5020055 Multi-length packet format including fixed length information words
05/28/1991US5020054 Packet format including unique network identity
05/28/1991US5020052 Packet switching network
05/28/1991US5020020 Computer interconnect system with transmit-abort function
05/22/1991EP0428254A2 Circuitry for verifying communicants in a communication apparatus
05/22/1991EP0428089A2 Subscriber node of a digital data transmission system
05/22/1991EP0427921A2 Method and device for data transmission
05/22/1991EP0427760A1 Method and apparatus for accessing a facsimile store and forward network.
05/22/1991CN1051646A Method of cross-connecting stm-1-sigral in multichannel multiplying series
05/22/1991CN1051645A Asynchronous time division multiplex switching system
05/21/1991US5018171 Smoothing filter
05/21/1991US5018141 Circuit for separating voice, data and signaling information
05/21/1991US5018139 Communication network between user equipment
05/21/1991US5018137 Transparent load sharing for parallel networks
05/21/1991US5018136 Multiplexed digital packet telephone system
05/21/1991US5018133 Network system comprising a plurality of LANs using hierarchical routing
05/21/1991US5018130 High-speed optical packet switching system using optical buffer between incoming and outgoing channels
05/21/1991US5018059 Method and apparatus for telecommunications signal processing and switching
05/21/1991CA2029259A1 Data representation and protocol
05/16/1991WO1991007034A1 Serial signal transmission apparatus and method of controlling determination of polarity thereof
05/16/1991WO1991007031A1 Controller bus system for a programmable flexible digital signal multiplexer
05/16/1991WO1991007030A1 Distributed synchronization method for a wireless fast packet communication system
05/16/1991WO1991007028A1 System for transmitting data between several subscriber stations in a local communications net
05/16/1991WO1991006447A1 Multiplex circuit arrangement, in particular for controlling consumer stations in motor vehicles
05/15/1991EP0427638A1 Line interface for an information transmission network
05/15/1991EP0427250A2 Method and apparatus for exploiting communications bandwidth as for providing shared memory
05/15/1991EP0427066A2 Pattern injector
05/15/1991EP0426911A1 Routing management in computer networks
05/15/1991CN1051441A Real time process control using multiple communication networks
05/15/1991CA2029706A1 Data transmission method and arrangement
05/14/1991WO1991007719A2 User interface for management
05/14/1991US5016248 Buffer memory device for packet data and method of controlling the device
05/14/1991US5016245 Modular expandable digital single-stage switching network in ATM (Asynchronous Transfer Mode) technology for a fast packet-switched transmission of information
05/14/1991US5016243 Automatic fault recovery in a packet network
05/14/1991US5016159 Stellate store and broadcast network with collision avoidance
05/14/1991CA2050335A1 User interface for management
05/08/1991EP0426518A1 Method and circuit for the transmission of high speed data according to a quasi asynchronous mode
05/08/1991EP0426269A1 Mobile communications system
05/08/1991EP0425999A1 Transmitter and receiver circuit for local computer networks with collision detection
05/08/1991EP0425990A2 Cell exchanging apparatus
05/08/1991EP0425845A2 Method and apparatus for serial data flow control
05/08/1991EP0425777A2 Switch method and protocol for making dynamic connections
05/08/1991EP0425732A1 Passive optical telecommunicationsystem
05/08/1991EP0425731A1 Controller-bus system for a programmable, flexible digital signal multiplexer
05/08/1991EP0425655A1 Passive network monitor and corresponding method of monitoring.
1 ... 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 ... 4490