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)
08/1984
08/02/1984WO1984003016A1 Synchronous communications multiplexer
08/01/1984EP0114485A2 Communications system and device therefor employing control line minimization
08/01/1984EP0114357A2 Controlling multiple distributed computations in a multi cpu environnment from a single port
07/1984
07/31/1984US4463417 Modular, processor-controlled document distribution terminal
07/31/1984US4463350 Communication system having designated transmission lines
07/31/1984CA1171931A1 Channel interface circuit
07/19/1984WO1984002816A1 Activation of a transmission link by code sending
07/19/1984WO1984002815A1 Activation in a digital subscriber connection
07/11/1984EP0113181A1 Digital random error generator arrangements
07/11/1984EP0113163A1 Deadlock detection and resolution scheme
07/10/1984CA1170739A1 Network access device
07/05/1984WO1984002629A1 Method and apparatus for bus contention resolution
07/05/1984WO1984002628A1 Method and apparatus for graceful preemption on a digital communications link
07/05/1984WO1984002522A1 Method for producing an aldehyde
07/04/1984EP0112429A1 System for the transmission of data by repetitive sequences
07/04/1984EP0112381A1 Geographically distributed multiprocessor time-shared communication processing system
06/1984
06/26/1984US4456970 In a network support processor
06/26/1984US4456957 Apparatus using a decision table for routing data among terminals and a host system
06/26/1984CA1169937A1 Process and apparatus for digital data communication using packet switching
06/19/1984US4455605 Method for establishing variable path group associations and affiliations between "non-static" MP systems and shared devices
06/19/1984CA1169574A1 Communication multiplexer having dual microprocessors
06/12/1984CA1169158A1 Communication multiplexer variable priority scheme
06/12/1984CA1169157A1 Communication multiplexer having an apparatus for establishing a single line priority
06/05/1984US4453074 Protection system for intelligent cards
05/1984
05/29/1984US4451898 Asynchronous interface message transmission using source and receive devices
05/29/1984US4451827 Local area communication network
05/24/1984WO1984002018A1 Block counter system to monitor data transfers
05/23/1984EP0109308A2 Block counter system to monitor data transfer
05/23/1984EP0108899A2 An electronic document distribution network with uniform data stream
05/22/1984CA1167986A1 Communication multiplexer sharing a free running timer among multiple communication lines
05/16/1984EP0108233A2 Electronic document distribution network with dynamic document interchange protocol generation
05/15/1984CA1167570A1 Intelligent interfacing apparatus for the automatic management of a switched or dedicated telecommunication line
05/15/1984CA1167543A1 Data set network diagnostic system
05/09/1984EP0108028A1 Synchronisation system of a digital packet multiplex
04/1984
04/24/1984US4445193 Bisynchronous host/terminal communication system with non-clock-generating modem & PLL generated clock signal
04/18/1984EP0105688A2 Line support processor for data transfer system
04/17/1984US4443884 Data line interface
04/17/1984US4443875 Apparatus and methods of call clearing in a packet switched data communications network
04/17/1984US4443863 Timer driven display updating
04/17/1984CA1165895A1 Serial channel control processor method
04/12/1984WO1984001450A1 Deadlock detection and resolution scheme
04/12/1984WO1984001447A1 Line support processor for data transfer system
04/03/1984US4441163 Data communication system
03/1984
03/27/1984US4439859 Method and system for retransmitting incorrectly received numbered frames in a data transmission system
03/14/1984EP0102434A1 Device to signal to the central control unit of a data processing equipment the errors occurring in the adapters
03/13/1984US4437168 Communication control unit
03/06/1984CA1163342A1 Communication subsystem with an automatic abort upon transmit underrun
03/01/1984WO1984000838A1 Fast response system for switched data networks
02/1984
02/28/1984US4434486 Self-switched data port in-band signaling protocol
02/28/1984US4434324 Reversal of connections of telegraphic line wires upon detection of unwanted polarity of the loop current
02/14/1984US4432057 Method for operating a computing apparatus
02/14/1984CA1162315A1 Message protocol module
02/08/1984EP0100092A2 Multiple communication interface between processor and digital transmission means
02/07/1984US4430651 Expandable and contractible local area network system
01/1984
01/19/1984WO1984000224A1 Geographically distributed multiprocessor time-shared communication processing system
01/17/1984US4426679 Communication multiplexer using a random access memory for storing an acknowledge response to an input/output command from a central processor
01/17/1984CA1160776A1 Apparatus for and method of collating partitioned time disordered synchronous data streams
01/17/1984CA1160771A1 Service integrated, digital transmission system
01/17/1984CA1160770A1 Service integrated digital transmission system operating in time multiplex
01/11/1984EP0097753A1 Tone receiver for a digital data transmission system
01/10/1984US4425625 Diagnostic display terminal system
01/03/1984CA1159962A1 Computer-communications concentrator for transmission and switching of packetized data
12/1983
12/28/1983EP0097028A2 Multiple-microcomputer communications system
12/27/1983US4423414 System and method for name-lookup in a local area network data communication system
12/20/1983US4422171 Method and system for data communication
12/13/1983CA1158740A1 Terminal providing communication system information output
12/06/1983US4419756 Voiceband data set
12/06/1983US4419751 Multiport modem and the use thereof in a method and a system for testing a multilevel communication network
12/06/1983US4419728 Channel interface circuit providing virtual channel number translation and direct memory access
11/1983
11/29/1983US4418384 Communication subsystem with an automatic abort transmission upon transmit underrun
11/29/1983CA1157952A1 Chip topography for integrated circuit communication controller
11/15/1983CA1157163A1 Communication control equipment
10/1983
10/25/1983US4412285 Multiprocessor intercommunication system and method
10/19/1983EP0091657A1 Data transmission apparatus between two asynchronously controlled data processing systems with a buffer memory
10/18/1983US4410889 System and method for synchronizing variable-length messages in a local area network data communication system
10/18/1983CA1155521A1 Method and system for retransmitting incorrectly received numbered frames in a data transmission system
10/05/1983EP0090293A2 Method and circuit arrangement for the transmission of information signals between exchanges of a first and second switching network utilizing different transmission procedures
10/05/1983EP0090016A1 Apparatus for routing data amoung low order units and a high order host computer system
09/1983
09/29/1983WO1983003316A1 Memory selection in a multiple line adapter organization
09/28/1983EP0089440A1 Method and device for the exchange of information between terminals and a central control unit
09/21/1983EP0089234A2 Memory selection in a multiple line adapter organization
09/20/1983US4405981 Communication multiplexer having an apparatus for establishing a single line priority
09/20/1983US4405979 Data processing system having apparatus in a communications subsystem for establishing byte synchronization
09/06/1983US4403111 Apparatus for interconnecting data communication equipment and data terminal equipment
08/1983
08/31/1983EP0087368A2 Interchangeable interface circuit structure
08/31/1983EP0087367A2 Interchangeable interface circuitry arrangements for use with a data processing system
08/09/1983US4398299 Data set network diagnostic system
08/09/1983US4398290 Process and apparatus for digital data communication using packet switching
08/02/1983US4396983 Distributed data processing system having several local system and communication modules for use in such data processing system
07/1983
07/27/1983EP0084389A2 Data transmission arrangement and communication network with preventive provision for error elimination
07/26/1983CA1150847A1 Broadband high level data link communication line adapter
07/12/1983US4393501 Line protocol for communication system
07/12/1983US4393464 Chip topography for integrated circuit communication controller
07/06/1983EP0083002A2 Interrupt system for peripheral controller
06/1983
06/23/1983WO1983002178A1 Interrupt system for peripheral controller
06/15/1983EP0081056A2 A data processing network having a distributed data file access control
06/14/1983US4388686 Communication system for distributed control arrangement
05/1983
05/31/1983CA1147421A1 Data-transfer controlling system
05/25/1983EP0079468A2 Direct memory access method for use with a multiplexed data bus
05/24/1983US4385382 Communication multiplexer having a variable priority scheme using a read only memory
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