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)
09/1991
09/17/1991US5049876 Data communication system
09/17/1991US5049873 Communications network state and topology monitor
09/17/1991US5049871 Loop communication system
09/17/1991CA2038313A1 Integrated domestic network appliances control process and actuating device
09/15/1991WO1991014325A1 Multiple-path and self-routing switching network for switching asynchronous temporal multiplexing cells
09/15/1991CA2038053A1 Communication switching module
09/13/1991CA2038092A1 Terminal service facility for non-synchronous system
09/13/1991CA2037878A1 Method of and circuit arrangement for freeing communications resources, particularly for use by a switching element
09/12/1991DE4007352A1 Local digital data transmission network - has address filter at participant unit accepting data or over-writing if address is wrong
09/11/1991EP0445468A2 Data network message broadcast arrangement
09/11/1991EP0209527B1 Method of communications between register-modelled radio devices
09/11/1991CN1054400A Apparatus for transmitting signal in elevator
09/10/1991US5048081 Arrangement for routing packetized messages
09/10/1991US5048014 Dynamic network reconfiguration technique for directed-token expanded-address LAN
09/10/1991US5048011 Routing method for fast packet switching systems
09/10/1991US5048009 Broadcast station locator for a local area network
09/10/1991CA1288848C Hybrid time multiplex switching system
09/10/1991CA1288845C Distributed local-area network monitoring system
09/10/1991CA1288836C Contention control system
09/06/1991CA2037510A1 Communicating system
09/05/1991WO1991013505A1 Control unit for the central store of an atm node
09/05/1991WO1991013504A1 Network interconnection apparatus
09/05/1991WO1991013503A1 Guaranteed reliable broadcast network
09/04/1991EP0444779A1 Split level bus
09/04/1991EP0444656A2 Multiplex communication system
09/04/1991EP0444395A2 Method and apparatus for controlling call processing based upon load conditions
09/04/1991EP0444207A1 Multiple access system for a communication network
09/03/1991WO1991013407A1 Telecommunication interface apparatus and method
09/03/1991US5046185 Regenerative repeater
09/03/1991US5046182 Code points for transferring data from a network transmission medium to a station on the network
09/03/1991US5046072 Signal distribution system
09/03/1991US5046066 Wireless local area network
09/03/1991US5046065 Communication system, a station to be used in such a system, and a gate connecting element to be used in such a system, as well as a device comprising such a gate connecting element
09/03/1991US5046064 Packet switching system
09/03/1991US5046039 Buffer management system
09/03/1991US5046027 Apparatus and method for processing and displaying images in a digital procesor based system
09/03/1991US5045849 Access device for an ISDN connecting device of a public terminal
09/03/1991US5045848 Method of encoding market data and transmitting by radio to a plurality of receivers
09/03/1991CA1288516C Apparatus and method for communicating textual and image information between a host computer and a remote display terminal
08/1991
08/29/1991DE4005339A1 Digital information transmission system - uses monitor circuit to detect transmitter current and switch receiver
08/28/1991EP0443782A2 Apparatus and method for time multiplexing a resource among a plurality of entities
08/28/1991EP0443731A2 Collision filter comprising at least one notch filter
08/28/1991EP0443672A2 Asynchronous transfer mode system
08/28/1991EP0443103A2 Connection unit for domestic system
08/28/1991EP0442974A1 Digital image processing and display system
08/28/1991EP0442963A1 Lan with dynamically selectable multiple operational capabilities.
08/28/1991EP0442936A1 Distributed router of connectionless datagrams over connection oriented networks
08/28/1991EP0277202B1 Data processing network
08/28/1991CN1054158A Synchronous-asynchronous converter
08/27/1991US5043982 Multichannel multipoint network using time-division multiplexing incorporating a time offset for propagation delay
08/27/1991US5043981 Method of and system for transferring multiple priority queues into multiple logical FIFOs using a single physical FIFO
08/27/1991US5043980 Switching cell for packet switching network
08/27/1991US5043979 Time-division channel arrangement
08/27/1991US5043938 Node controller for a local area network
08/27/1991US5043722 Detector for colliding signals in asynchronous communication
08/22/1991WO1991012677A1 Multiple buffer time division multiplexing ring
08/22/1991DE4004956A1 Interface circuit for async. time division multiplex system - uses comparators in conjunction with multiplexes and buffers
08/22/1991DE4004889A1 Asynchronous time division multiplex transmission system - with storage of incoming cells during comparison of path information for selecting outgoing line
08/22/1991CA2075475A1 Multiple buffer time division multiplexing ring
08/21/1991EP0442839A2 Method for providing user access control within a distributed data processing system
08/21/1991EP0442809A2 Model-based reasoning system for network fault diagnosis
08/21/1991EP0442581A2 Asynchronous time division multiplex communication system
08/21/1991EP0441960A1 No-owner frame and multiple token removal for token ring networks.
08/21/1991EP0441851A1 Satellite radio receiver
08/21/1991EP0441843A1 Guaranteed reliable broadcast network
08/20/1991US5042083 Radio communication system having means for avoiding signal collision
08/20/1991US5042053 Zero-sync-time apparatus for encoding and decoding
08/20/1991US5042032 Packet route scheduling in a packet cross connect switch system for periodic and statistical packets
08/20/1991US5042031 Double loop communications control system
08/20/1991US5042030 Apparatus for rearranging signal channels of a multi-loop time-division multiplexed transmission system
08/20/1991US5042029 Congestion control method and apparatus for end-to-end packet communication
08/20/1991US5042027 Communication network system and method of controlling a communication network
08/20/1991US5041963 Local area network with an active star topology comprising ring controllers having ring monitor logic function
08/20/1991CA1287930C Method and apparatus for transmitting information via a bus system
08/20/1991CA1287911C Multichannel, multihop lightwave communication network
08/20/1991CA1287897C Multipoint data communication with a supervisory system for detecting a malfunctioning remote station
08/14/1991EP0441393A2 A signaling cell switching system
08/14/1991EP0441257A2 Packet switch
08/14/1991EP0440982A2 A data communication network with a synchronized slave station connection apparatus
08/14/1991DE4104601A1 Reception data processing circuit for local transmission network - has storage of data extracted from received data sequence in data store
08/14/1991DE4103888A1 Address filter for interface between communication networks - has clock sources responding to entry of extracted address information in table to control subsequent erasure
08/14/1991DE4004396A1 Coupling field for centrally-controlled communications exchange - has successive coupling field stages each using transporters with input and output channels
08/14/1991CN1013542B Controlled csma packet switching system
08/14/1991CN1013541B Hybrid time multiplex switching system with optimized buffer memory
08/13/1991US5040176 Intra-node pacing for high speed networks
08/13/1991US5040175 Wireless information transmission system
08/13/1991US5040171 Call restricting method in packet switching network and network controller having call restricting function
08/13/1991US5040141 Method for administrating reply mail in electronic mail system
08/13/1991US5040111 Personal computer based non-interactive monitoring of communication links
08/13/1991US5039980 Multi-nodal communication network with coordinated responsibility for global functions by the nodes
08/13/1991CA1287673C Communications systems
08/09/1991CA2035935A1 Signaling cell switching system
08/08/1991WO1991011874A1 Single number information exchange routing process
08/08/1991WO1991011794A1 Equipment for protecting data in a data-processing system
08/08/1991CA2035428A1 Packet switch
08/07/1991EP0440284A2 A system for the transmission of data packets
08/07/1991EP0440059A1 Byte transmission method making use of a synchronous frame for combining asynchronous cells and isochronous channels
08/07/1991EP0439986A1 Data communications equipment testing tool
08/07/1991EP0439646A1 Optical star network protocol and system with minimised delay between consecutive packets
08/07/1991CN1013467B Operating method of wideband/multislot switching apparatus
1 ... 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 ... 4490