Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 29 - Arrangements, apparatus, circuits or systems, not covered by a single one of groups
Patents for H04L 29 - Arrangements, apparatus, circuits or systems, not covered by a single one of groups (330,333)
12/1991
12/31/1991US5077732 LAN with dynamically selectable multiple operational capabilities
12/31/1991US5077730 Method of auditing primary and secondary node communication sessions
12/31/1991US5077729 Testing optical fiber links
12/31/1991US5077655 Communication control device in computer system
12/31/1991CA1293820C Input/output network for computer system
12/30/1991CA2045961A1 Abort processing in pipelined communication
12/30/1991CA2045933A1 Method and apparatus for decryption of an information packet having a format subject to modification
12/30/1991CA2044860A1 Cryptography processor and method with optional status endcoding
12/29/1991CA2044022A1 Common agent computer management system and method
12/27/1991EP0462725A2 Electronic mail handling in a mutli-user environment
12/27/1991CA2045340A1 Method and apparatus for transmission of local area network signals over unshielded twisted pairs
12/26/1991WO1991020035A1 Control and maintenance architecture for a highly parallel multiprocessor system
12/24/1991US5075850 Translation communication system
12/21/1991WO1991020160A1 Two party memory access arbitrator
12/21/1991CA2085891A1 Two party memory access arbitrator
12/18/1991EP0461859A2 Facsimile terminal equipment
12/18/1991EP0461816A2 Communication network node used for network interconnection
12/18/1991EP0461714A1 Method of controlling a self-test in a data processing system and data processing system suitable for this method
12/18/1991EP0461445A2 Method for transmitting at a high data rate over a plurality of lower speed channels
12/17/1991US5073852 Network protocol translator including method and apparatus for reducing interprocess communication and data exchange overhead
12/12/1991WO1991019404A1 Device with a plug-in circuit board for the control of data communication
12/10/1991US5072449 Packet framing using cyclic redundancy checking
12/10/1991US5072441 Packet switched information network with universal access to enhanced network services
12/10/1991US5072374 Method for communicating among a plurality of programmable logic controllers each having a dma controller
12/05/1991DE4017771A1 Data card data transmission control appts.
12/04/1991EP0459774A2 File access system in distributed data processing system
12/04/1991EP0459758A2 Network adapter having memories configured as logical FIFOs to transmit and receive packet data
12/04/1991EP0459752A2 Network adapter using buffers and multiple descriptor rings
12/04/1991EP0459325A1 Multidrop communication system
12/04/1991EP0458781A1 Process for monitoring a computer network.
12/03/1991US5070528 Generic encryption technique for communication networks
11/1991
11/27/1991EP0458648A2 Communication interface for serial transmission of variable length data tokens
11/27/1991EP0458120A2 Method and arrangement for searching for a resource across two architecturally dissimilar computing networks
11/26/1991CA1292575C Methods of retrieving records stored within a computer system
11/21/1991EP0457704A1 Method of preventing lockup of asynchronous modems
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
11/19/1991US5067104 Programmable protocol engine having context free and context dependent processes
11/16/1991WO1991018451A1 Dcd with reprogramming instructions contained in removable cartridge
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
11/13/1991EP0456249A2 System for integrating application programs in a heterogeneous network enviroment
11/12/1991US5065399 Telecommunication network trouble recovery system
11/12/1991CA1292078C Process traps in a distributed message-based operating system
11/06/1991EP0454851A1 Network control system
11/05/1991US5063523 Network management system with event rule handling
10/1991
10/31/1991WO1991016697A1 Link protocol for rs 232 communication
10/30/1991EP0454558A1 Multi-protocol convertor for connecting a number of asynchronous terminals to a telecommunications network
10/30/1991EP0454526A1 Symmetrical multiprocessor tightly coupled machine
10/30/1991EP0453863A2 Methods and apparatus for implementing a media access control/host system interface
10/29/1991CA1291576C Concurrent multi-protocol i/o controller
10/28/1991CA2040957A1 High linking level symmetrical multiprocessor machine
10/24/1991WO1991016679A1 Multichannel backplane bus system architecture
10/24/1991CA2079671A1 Multichannel backplane bus system architecture
10/23/1991EP0452487A1 Automatic fault recovery in a packet network.
10/22/1991US5060257 Videotex terminal for receiving telecopies
10/22/1991US5060150 Process creation and termination monitors for use in a distributed message-based operating system
10/22/1991CA1291270C Method and apparatus for specification of communication parameters
10/16/1991EP0451897A2 Apparatus and method for providing an adaptable interface between computers
10/16/1991EP0441798A4 Entity management system
10/15/1991US5058133 Method and apparatus for digital communication
10/15/1991US5058108 Local area network for digital data processing system
10/09/1991EP0450062A1 Data and voice transmission over a cellular telephone system
10/08/1991US5056113 Data communication system
10/08/1991US5056088 Apparatus and method for efficiently coupling digital signals to a communications medium in information packets
10/08/1991US5056084 System for transmitting hdlc frames on a pcm type link using a single hdlc circuit and a transposition buffer memory
10/08/1991US5056058 Communication protocol for predicting communication frame type in high-speed processing system
10/08/1991US5056003 Distributed data management mechanism
10/03/1991WO1991015066A1 Distributed protocol for improving the survivability of telecommunications trunk networks
10/02/1991EP0449458A1 Network-field interface for manufacturing systems
10/02/1991EP0449420A2 Integrated data link controller with autonomous logical elements
10/02/1991EP0449304A2 Multiplex transmission system for use in vehicles
10/02/1991DE4110372A1 Multiplexed communication system for vehicle - uses network nodes and gateways to allow common control and system monitoring
10/01/1991US5054020 Apparatus for high speed data communication with asynchronous/synchronous and synchronous/asynchronous data conversion
10/01/1991US5054019 Transfer direction turnaround in network data communications
09/1991
09/28/1991CA2034651A1 Distributed protocol for improving the survivability of telecommunications trunk networks
09/25/1991EP0448232A2 Burst time division multiplex interface for integrated data link controller
09/25/1991EP0447725A2 Updating link state information in networks
09/25/1991CN1054870A Synchronising communication with token and its expansion application
09/25/1991CA2038919A1 Network-field interface for manufacturing systems
09/24/1991US5052020 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
09/24/1991US5051892 Full duplex conversation between transaction programs
09/24/1991US5050984 Method for colorizing footage
09/23/1991WO1991014987A1 Apparatus for networking programmable logic controllers to host computers
09/22/1991CA2035231A1 Updating link state information networks
09/19/1991WO1991014230A1 Message communication processing system
09/18/1991EP0447054A2 Integrated data link controller with synchronous link interface and asynchronous host processor interface
09/18/1991EP0447053A2 Integrated data link control with dynamic hyperchannel mapping
09/18/1991EP0447038A2 A system for establishing a communication path in a closely coupled computer system
09/18/1991EP0446956A2 An ATM transmission system with a variable transmission rate
09/18/1991EP0446855A2 Multichannel communication processing system
09/18/1991EP0446827A1 Terminal installation for asynchronous network
09/17/1991US5050166 Transfer of messages in a multiplexed system
09/13/1991CA2038092A1 Terminal service facility for non-synchronous system
09/12/1991DE4007352A1 Local digital data transmission network - has address filter at participant unit accepting data or over-writing if address is wrong
09/11/1991EP0445532A1 ISDN multimedia communications system
09/11/1991EP0365649A4 Apparatus and method for mapping the connectivity of communications systems with multiple communications paths
09/11/1991EP0209527B1 Method of communications between register-modelled radio devices
09/11/1991EP0207948B1 Internally register-modelled, serially-bussed radio system
09/10/1991US5048085 Transaction system security method and apparatus
09/10/1991US5048078 System for communication over a telephone line between a facsimile apparatus and a computer
09/10/1991US5048062 Transmitting commands over a serial link
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