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)
07/1989
07/18/1989US4849703 Method and apparatus for generating a data sampling clock locked to a baud clock contained in a data signal
07/12/1989EP0323859A2 Data storage unit in article identification system
07/11/1989US4847877 Method and apparatus for detecting a predetermined bit pattern within a serial bit stream
07/11/1989US4847834 Local area network
07/11/1989US4847830 Method and apparatus for automatic loading of a data set in a node of a communication network
07/11/1989CA1257419A1 Network event identifiers
07/11/1989CA1257399A1 Local area network for digital data processing system
07/05/1989EP0323222A2 System for sending and receiving a HDLC data frame on a time-division multiplex transmission path
07/05/1989EP0323072A2 Data transmission with improved message format
07/04/1989US4845347 Transaction system
06/1989
06/29/1989DE3841386A1 Constant speed of travel control device
06/28/1989EP0321544A1 Intercomputer communication control apparatus and method.
06/27/1989US4843479 Data communication apparatus
06/27/1989CA1256614A1 Signal processor communication interface
06/21/1989EP0320876A2 Fault information collection processing system
06/20/1989US4841373 Facsimile transmission control method in which a frame of stored image data is transmitted when either a predetermined time has elapsed or a predetermined amount of image data has been stored
06/15/1989WO1989005551A1 Method and apparatus for automatic loading of a data set in a node of a communication network
06/13/1989US4839897 Fault detecting system for ADPCM codec
06/07/1989EP0319271A2 Multiplex transmission system
06/07/1989EP0318531A1 Packet switching
06/06/1989US4837805 Opening command transmission system and method capable of reducing overhead in an information processing unit
06/06/1989US4837739 Telemetry data processor
06/06/1989US4837677 Multiple port service expansion adapter for a communications controller
06/06/1989US4837487 System for coupling a visual sensor processor and a robot controller
06/01/1989WO1989005075A1 Fast packetized data delivery for digital networks
06/01/1989WO1989005073A1 Data link system
05/1989
05/30/1989US4835674 Computer network system for multiple processing elements
05/30/1989US4835673 Method and apparatus for sharing resources among multiple processing systems
05/30/1989US4835671 Communication control unit providing isolation of failure condition of electronic control unit
05/30/1989US4835346 Method and device for fast data transmission through a standard serial link
05/30/1989CA1255006A1 Data transmission system
05/24/1989EP0316773A2 Method for synchronizing a digital communication system
05/23/1989US4833696 System for controlling operation mode of modulator/demodulator
05/18/1989WO1989004571A1 Series controller
05/17/1989EP0316020A2 Block counter system to monitor data transfers
05/16/1989US4831620 Controller for controlling multiple LAN types
05/16/1989US4831518 Multiprocessor interrupt rerouting mechanism
05/16/1989US4831358 Communications system employing control line minimization
05/10/1989EP0315389A2 Data transmission system
05/10/1989EP0315158A2 Method and apparatus for controlling terminals on communication network
05/10/1989EP0314909A2 Single node image for a multiple processor network node
05/10/1989EP0072857B1 Data communication system
05/09/1989US4829462 Communication bit pattern detection circuit
05/09/1989CA1253972A1 Multicommunication protocol controller
05/03/1989DE3736081A1 Method and device for setting the addresses of subscribers connected to a bus
05/02/1989US4827411 Method of maintaining a topology database
04/1989
04/26/1989EP0312739A2 Apparatus and method for interconnecting an application of a transparent services access facility to a remote source
04/25/1989US4825204 Address setting and data transmission system
04/19/1989EP0311798A2 Data input/output circuit
04/19/1989EP0311665A1 Data communication network.
04/18/1989US4823389 Method and circuit apparatus for checking the authorization of access to a signal processing system
04/18/1989US4823375 Data communication apparatus cupable of disabling an output component when output of a type provided by that component is unnecessary
04/18/1989US4823345 Method and apparatus for communication network alert record identification
04/18/1989US4823344 Communication system
04/18/1989US4823343 Diagnostic system for remote computers
04/18/1989US4823193 Data communication apparatus
04/18/1989US4823124 Lan controller proprietary bus
04/18/1989US4823122 Local area network for digital data processing system
04/18/1989CA1252898A1 Universal protocol data receiver
04/18/1989CA1252870A1 Packet switch trunk circuit queueing arrangement
04/11/1989US4821267 Monitoring apparatus for monitoring the operating condition of transmission facilities of communications transmission technology
04/06/1989WO1989003144A1 Data link monitoring system
04/05/1989EP0310360A2 Data communication method and apparatus
04/05/1989EP0309627A1 Apparatus for connecting data processing equipment to a telephone network
03/1989
03/29/1989EP0308485A1 Terminal device session management protocol
03/29/1989EP0308449A1 Transfer of messages in a multiplexed system.
03/28/1989US4817089 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
03/28/1989US4816823 Application specific integrated circuit
03/23/1989WO1989002631A1 Naming service for networked digital data processing system
03/22/1989EP0308148A2 Apparatus for recording a digital signal
03/22/1989EP0307931A2 Interface module for connecting collision detection LAN user terminals to a switching network having a different access mode.
03/22/1989EP0307401A1 Method and apparatus for providing variable reliability in a telecommunication switching system.
03/21/1989US4814894 Image transmitting system having density selection
03/21/1989US4814590 Method and apparatus for transmitting data
03/21/1989CA1251582A1 Method and device for converting digital channel multiframes into packet multiframes
03/21/1989CA1251572A1 Multiple port service expansion adapter for a communications controller
03/21/1989CA1251517A1 Internally register-modelled, serially-bussed radio system
03/15/1989EP0306585A1 Data transmission system with a digital alarm facility
03/14/1989US4813037 Switching system
03/14/1989CA1251263A1 Synchronous/asynchronous modem
03/09/1989WO1989002141A1 Method and system for transmitting information and controlling components
03/09/1989WO1989002129A1 Session control in network for digital data processing system which supports multiple transfer protocols
03/07/1989US4811339 Non-coded information and companion data switching mechanism
03/07/1989US4811277 Communication interface
03/07/1989CA1250918A1 Serial link communications protocol
02/1989
02/28/1989US4809155 Very high speed line adapter for a communication controller
02/28/1989US4808937 Phase-locked loop for a modem
02/28/1989CA1250673A1 Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels
02/22/1989EP0304074A2 Communication control device and method in computer system
02/22/1989EP0303991A2 Method of packetizing data
02/21/1989US4807282 Programmable P/C compatible communications card
02/21/1989US4807276 Re-transmission method and apparatus in communication system using public communication lines
02/21/1989US4807258 Method for synchronizing a digital communication system
02/21/1989US4807226 Secondary station operable in a data communication network like a primary station upon occurrence of a fault
02/21/1989US4807118 Method for handling slot requests over a network
02/21/1989US4806906 Data terminal
02/14/1989US4805194 Serial data communication system
02/14/1989US4805168 Local area communication network
02/14/1989US4805134 Electronic system for accessing graphical and textual information
02/14/1989CA1250065A1 System for controlling network activation sequence
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