Patents
Patents for H04L 29 - Arrangements, apparatus, circuits or systems, not covered by a single one of groups (330,333)
06/1993
06/08/1993US5218187 Hand-held data capture system with interchangeable modules
06/03/1993WO1993011620A1 Method for recovering failured transmission line
06/03/1993CA2101520A1 Transmission line fault control method
06/02/1993EP0544608A1 Method and system for the efficient distribution of messages utilizing a data processing system
06/02/1993EP0544436A1 Identification of the transmission characteristics of a communication path
06/01/1993US5216713 Method and apparatus for preventing extraneous detection of signal information
05/1993
05/28/1993CA2073560A1 Multi-media serial line switching adapter for parallel networks and heterogenous and homologous computer systems
05/26/1993EP0543644A2 Command authentication process between a master and a slave station encrypted messages
05/26/1993EP0543126A1 Communication control apparatus
05/26/1993CN1072549A Carrier modulated narrow pulse signal processor
05/25/1993US5214779 Variable construct representation embedded in data stream which references definition for dynamically generating data used in processing the data stream
05/25/1993US5214705 Circuit and method for communicating digital audio information
05/22/1993CA2077834A1 Command authentication process
05/19/1993EP0542705A2 An arrangement for interface adaptation to a digital telecommunications network
05/19/1993EP0542657A1 Universal communications interface adaptable for a plurality of interface standards
05/19/1993EP0542087A2 Method and apparatus for efficient serialized transmission of handshake signal on a digital bus
05/19/1993EP0506717A4 Integrated data communication system
05/19/1993CN1020810C Dual microprocessor control system
05/18/1993US5212774 Two processor communications system with processor controlled modem
05/18/1993US5212475 Method for generating an alarm inhibit signal
05/13/1993WO1993009627A1 Cryptographic apparatus and method for a data communication network
05/13/1993WO1993009623A1 Method for handling data transmission frames of variable length with a channel controller and for writing them to a cyclic buffer memory
05/13/1993CA2123199A1 Cryptographic apparatus and method for a data communication network
05/12/1993EP0541362A1 Facsimile apparatus
05/12/1993EP0541118A1 Controller for data transfer between a digital telephone network and a processor controlled terminal
05/12/1993EP0509068A4 Dynamic association of rf radio data communication system in a pre-existing computer controlled network
05/12/1993CN2133098Y Data carrier transmitter
05/11/1993US5210827 Nest level judging device for judging the starting and the end addresses
05/11/1993US5210826 Data communication apparatus having bandwidth selection capabilities
05/11/1993US5210749 Configuration of srams as logical fifos for transmit and receive of packet data
05/11/1993US5210747 Communications controller for use with a computer and a plurality of isdn terminals
05/11/1993US5210535 O S I data communication for dealing with abstract syntaxes which are and are not preliminarily negotiated
05/05/1993EP0540234A2 Monitoring of charges debited to an account having an assigned limit
05/05/1993EP0540188A1 Spectrally efficient broadband transmission system
05/05/1993EP0539964A2 Modem device
05/05/1993EP0539840A2 Method and circuit for the transmission of data blocks on a bus system
05/05/1993EP0465532A4 High speed data packet switching circuit and method
05/05/1993CN1020530C Communication system
05/04/1993US5208858 Method for allocating useful data to a specific originator
05/04/1993US5208806 Isdn terminal equipment operating with circuit switching mode and packet switching mode
04/1993
04/30/1993CA2080882A1 Method and circuit arrangement for transmitting data blocks through a bus system
04/29/1993WO1993008660A1 Communication system link re-establishment protocol
04/29/1993WO1993008522A1 Computer-based drawing apparatus
04/29/1993CA2120621A1 Communication system link re-establishment protocol
04/28/1993EP0539130A2 Communication within a data processing system
04/28/1993EP0538456A1 Receiver with signal classifier
04/28/1993EP0387247B1 Fast packetized data delivery for digital networks
04/28/1993CN1071542A Method and apparatus of interconnecting computer network
04/27/1993US5206933 Data link controller with channels selectively allocatable to hyper channels and hyper channel data funneled through reference logical channels
04/27/1993US5206888 Start-stop synchronous communication speed detecting apparatus
04/27/1993US5206859 Isdn multimedia communications system
04/27/1993CA1317015C Network transit prevention
04/21/1993EP0537903A2 Distributed control system
04/21/1993EP0537894A2 An apparatus and method for a federated naming system which can resolve a composite name composed of names from any number of disparate naming systems
04/21/1993EP0537814A1 Multi-station bus system having means for polling and updating of globally relevant information, in particular a station address, and station for use in such system
04/21/1993EP0537704A2 Multiplex transmission system
04/21/1993EP0537481A2 Network selection of broadcast messages based on a content code
04/21/1993EP0537401A1 Method for exchanging messages between a shared memory and communication adapters using an efficient logical protocol
04/20/1993US5204961 Computer network operating with multilevel hierarchical security with selectable common trust realms and corresponding security protocols
04/20/1993US5204955 Network management method and system
04/20/1993US5204949 Multi-channel/multi-circuit communication controller
04/20/1993US5204858 Address setting and filtering system for terminal accommodating circuits in a packet switching system
04/18/1993CA2079502A1 Spectrally efficient broadband transmission system
04/15/1993WO1993007708A1 System for information transmission and reception via a data transmission network using a microcomputer
04/15/1993WO1993007692A1 Packet processing method and apparatus
04/15/1993WO1993007691A1 A radio frequency local area network
04/15/1993WO1993007569A1 Method and apparatus for concurrent packet bus
04/15/1993WO1993007566A1 Temporary message routing and destination selection
04/15/1993DE4224072A1 Data communication processor for hierarchical system - has single chip data processor with on chip memory and interfaces coupled to second and third level protocol ROM modules
04/15/1993CA2120520A1 A radio frequency local area network
04/14/1993EP0536348A1 Security device for ring network.
04/14/1993CN2130015Y Multifunction error code measurer
04/13/1993US5202977 Edi translation system using plurality of communication processes and de-enveloping procedure corresponding to transmitted communication process
04/13/1993US5202884 Multiplexing scheme for modem control signals
04/13/1993CA1316276C Multiplex transmission system
04/07/1993EP0535890A2 Multimedia communication apparatus
04/07/1993EP0535434A2 A circuit and method for communicating digital audio information
04/07/1993EP0535396A1 Method for the reduction of bit errors in a digital communication system
04/06/1993US5200953 Method for programming a content addressable memory (CAM)
04/06/1993US5200949 Link changeover control system for local area network of broadcasting arrangement
04/06/1993US5200742 Electronic device with exclusive control type communication function and its communication system
04/01/1993WO1993002514A3 Apparatus for high speed data transfer
04/01/1993DE4131909A1 Protocol converter with freely settable parameters for coupling computers etc. with serial interfaces to Ether net (RTM) - contains protocol conversion devices and receives physical and protocol parameter settings over the LAN.
04/01/1993DE4131133A1 Exchanging data in processing system, esp. for process control - transferring messages in communications with header fields contg. message identifiers.
03/1993
03/31/1993EP0534886A2 Network redirection for the enhancement of server capacities
03/31/1993EP0534882A2 Multi-channel communications system
03/31/1993EP0534529A1 Apparatus and method for burst data transfer
03/31/1993EP0534030A1 A frame transfer device for a fixed format frame transmission network
03/31/1993CN1070498A Network selection of broadcase messages based on content code
03/31/1993CN1020229C Optical fibre link circuit testing network
03/30/1993US5199107 Controller for effecting a serial data communication and system including the same
03/30/1993US5199072 Method and apparatus for restricting access within a wireless local area network
03/30/1993US5199051 Data length detection device for detecting length of frame data defined by flags
03/24/1993EP0533583A1 Method for designing protocol controller integrated circuits and system for carrying out this method
03/24/1993EP0533407A2 Heterogeneous transaction coordination
03/24/1993EP0533229A2 Method of identifying a signal path and signal processing apparatus
03/24/1993EP0533091A2 Parallel transmission method
03/23/1993US5197128 Modular interface
03/23/1993US5197083 Multimedia protocol interface for 64 kbit/s data flow
03/23/1993US5197067 Packet communication system using a telephone switching network and a data flow control method