Patents for H04L 12 - Data switching networks (448,999)
11/1993
11/03/1993EP0567492A1 Method and device for monitoring computer manipulations.
11/03/1993CN1022659C Modular system for far-end "automatic" exchange
11/02/1993US5258979 ATM communication system with optimal traffic control by changing the allocated bandwidth
11/02/1993US5258977 Switching network for an asynchronous time-division multiplex transmission system
11/02/1993US5258752 Broad band digital exchange
11/02/1993CA1323918C Communication processor for a packet-switched network
10/1993
10/31/1993CA2095209A1 Optical system for connecting suscriber installations to a telecommunications network switching centre providing interactive and non-interactive services
10/31/1993CA2095177A1 Regenerative communication channel extender
10/28/1993WO1993021714A1 Method for transmission of digital information
10/28/1993WO1993021713A1 Data transmission system for vehicle
10/28/1993WO1993021706A1 Optical processing system
10/28/1993WO1993021704A1 Method and apparatus for configuring and maintaining token ring network
10/28/1993DE4213134A1 Network interface circuit with fast change from passive state - has difference amplifier with inputs from switches coupled to bus and to resistor network for determining input state
10/28/1993CA2138171A1 Method for transmission of digital information
10/27/1993EP0567294A2 Multi-system network addressing
10/27/1993EP0567217A2 System of extending network resources to remote networks
10/27/1993EP0566962A2 Method for monitoring virtual connections in digital telecom networks
10/27/1993EP0566961A2 Method and circuit to enforce the preassigned transmission rate in an ATM switching equipment
10/27/1993EP0566935A2 Interface module for connecting two bus segments
10/27/1993EP0566610A1 Method and apparatus for transparently bridging traffic across wide area networks.
10/27/1993CN1077832A A combined terminal adapter for smds and frame relay high speed data services
10/26/1993US5257384 Asynchronous protocol for computer system manager
10/26/1993US5257311 System for monitoring ATM cross-connecting apparatus by inside-apparatus monitoring cell
10/26/1993US5257290 Transmission line termination of guide-communications wire for guided vehicles
10/26/1993US5257266 Computer and communications systems employing universal direct spherics processing architectures
10/26/1993US5257264 Automatically deactivated no-owner frame removal mechanism for token ring networks
10/26/1993US5257259 Ring-type local area network
10/26/1993US5257258 "Least time to reach bound" service policy for buffer systems
10/26/1993US5257257 Method of controlling the operation of a packet switched CDMA communication network for controlling the operation of transmitters and receivers
10/26/1993US5257160 Serial signal transmission device and control method for determining polarity
10/26/1993US5256958 Concentrator-based growable packet switch
10/26/1993CA2003928C Access device for an isdn connecting device of a public terminal
10/26/1993CA1323704C Distributed load sharing
10/26/1993CA1323676C Receiver coupler for binary data communication systems
10/24/1993CA2094561A1 Method and circuit arrangement for checking the observance of prescribed transmission bit rates in an atm switching equipment
10/22/1993CA2094163A1 Multi-system network addressing
10/21/1993DE4212742A1 Error identification on data bus lines - has feedback lines from bus to microprocessor to compare voltage levels with reference values for fault identification
10/20/1993EP0566241A2 Errorless line protection switching in asynchronous transfer mode (ATM) communications systems
10/20/1993EP0566139A1 Communications system for communications between an electronic control apparatus and a test apparatus
10/20/1993EP0565850A1 Integrated messaging system
10/20/1993EP0565739A1 Procedure for the allocation of timeslots in a passive optical network
10/19/1993US5255268 Data distribution network with improved broadcast feature
10/19/1993US5255267 Apparatus for combining broadband and baseband signal transmissions
10/19/1993US5255266 ATM switching unit
10/19/1993US5255265 Controller for input-queued packet switch
10/19/1993CA2022797C Resequencing system for a switching node
10/19/1993CA2011174C Self-routing switching system having dual self-routing switch module network structure
10/19/1993CA2006102C Communication switching system
10/19/1993CA1323407C Optical signal recovery
10/19/1993CA1323405C Polling network communication system having transmission request registration means
10/18/1993CA2093859A1 Multiple access communications systems
10/14/1993WO1993020641A1 Improved data transmission public switched telephone network
10/14/1993WO1993020638A1 Data transmission device and method for random access network having advanced collision resolution
10/14/1993WO1993020637A1 Congestion control for cell networks
10/14/1993WO1993020636A1 Radio network type data transmission installation and method
10/14/1993WO1993020635A1 Network interfacing method and a network interface for a digital transmission network
10/14/1993WO1993020634A1 Method for atm switch core interface
10/14/1993CA2133431A1 Data transmission device and method for random access network having advanced collision resolution
10/13/1993EP0565305A1 Transmission of a clock signal over an asynchronous data channel
10/13/1993EP0564926A1 Cold cathode
10/13/1993EP0564627A1 Method for handling data transmission frames of variable length with a channel controller and for writing them to a cyclic buffer memory.
10/13/1993EP0564548A1 Apparatus and method for creation of a user definable video displayed document showing changes in real time data.
10/13/1993EP0564496A1 Process for transmitting information.
10/13/1993EP0494170B1 Switching node for a communications switching network
10/13/1993EP0323488B1 Device for potential-free transmission of digital signals in serial networks with bitwise arbitration
10/12/1993US5253252 Token device for distributed time scheduling in a data processing system
10/12/1993US5253251 Switching system with time-stamped packet distribution input stage and packet sequencing output stage
10/12/1993US5253250 Routing and switching of high-speed optical data with the header transmitted on a subcarrier frequency
10/12/1993US5253248 Congestion control for connectionless traffic in data networks via alternate routing
10/12/1993US5253247 Traffic control method and traffic control system for controlling cell traffic in an asynchronous transfer mode communication network
10/12/1993US5253161 Method for routing data in a near-optimal manner in a distributed data communications network
10/12/1993US5252979 Universal communication system
10/12/1993CA2015404C Packet cross connect switch system including improved throughput
10/12/1993CA2015403C Multiple queue bandwidth reservation packet system
10/12/1993CA1323081C Duplex system of transmission lines in a loop network
10/07/1993DE4315674A1 Energy supply system for subscriber connected to two=wire data line - combines supply voltage with transmitted digital data stream with temporary storage of operating voltage during level transitions
10/06/1993EP0564387A2 Method and apparatus for inputting electronic mail
10/06/1993EP0563572A2 Dynamic signal routing
10/06/1993EP0563492A2 Data distribution network with improved broadcast feature
10/06/1993EP0563415A1 Switching network for switching digital information
10/06/1993CN1077069A Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system
10/05/1993US5251319 Optical transmission apparatus for digital devices
10/05/1993US5251308 Shared memory multiprocessor with data hiding and post-store
10/05/1993US5251215 Modifying check codes in data packet transmission
10/05/1993US5251214 Method for transmitting data to a plurality of data stations
10/05/1993US5251213 Multiport source routing token ring bridge apparatus
10/05/1993US5251212 Bus transmission method and system
10/05/1993US5251211 Multiplex transmission system for automotive vehicles
10/05/1993US5251209 Prioritizing attributes in integrated services networks
10/05/1993US5251208 Digital signal processor synchronous network
10/05/1993US5251207 Combined terminal adapter for SMDS and frame relay high speed data services
10/05/1993US5251206 Hybrid switching system for a communication node
10/05/1993US5251205 Multiple protocol routing
10/05/1993US5251204 Transmission test system in a broadband ISDN
10/05/1993US5251203 Hub privacy filter for active star CSMA/CD network
10/05/1993US5251152 Storage and display of historical LAN traffic statistics
10/05/1993US5250943 GVT-NET--A Global Virtual Time Calculation Apparatus for Multi-Stage Networks
09/1993
09/30/1993WO1993019559A1 Atm radio network
09/30/1993WO1993019551A1 Methods and devices for prioritizing in handling buffers in packet networks
09/30/1993WO1993019550A1 A method of grouping links in a packet switch