Patents
Patents for G06F 13 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units (158,002)
05/1983
05/31/1983CA1147421A1 Data-transfer controlling system
05/31/1983CA1147420A1 Intersystem cycle control logic
05/31/1983CA1147419A1 Logic system for selectively reconfiguring an intersystem communication link
05/31/1983CA1147418A1 Asynchronous multi-communication bus sequence
05/26/1983WO1983001851A1 Peripheral unit adapted to monitor input/output interface
05/26/1983WO1983001849A1 Memory mapping unit
05/26/1983WO1983001848A1 Memory security system
05/25/1983EP0079698A2 Data processing system with apparatus for controlling program interrupts
05/25/1983EP0079618A2 Method and arrangement for the controlled transmission of control signals to interfaces of digital systems
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
05/24/1983US4385350 Multiprocessor system having distributed priority resolution circuitry
05/24/1983US4385349 Central processor supervised controller system having a simulation of the controller in the central processor for test purposes
05/18/1983EP0079159A2 Asynchronous interface
05/18/1983EP0079140A1 Multiple computing systems and communication bus structure therefor
05/17/1983US4384327 Intersystem cycle control logic
05/17/1983US4384323 Store group bus allocation system
05/17/1983US4384322 Asynchronous multi-communication bus sequence
05/17/1983CA1146673A1 Data processing system
05/17/1983CA1146669A1 Simulator for bit and byte synchronized data network
05/11/1983EP0078389A1 Bus contention resolution in data processing apparatus having multiple independant users
05/11/1983EP0078296A1 Arrangement for distribution of send permission to terminals in a telecommunciation network.
05/10/1983US4383297 Data processing system including internal register addressing arrangements
05/04/1983EP0077864A1 Scanning device for communication lines comprising an address generator
05/04/1983EP0077863A1 Scanning device for communication lines, adapted for a communication controller
05/04/1983EP0077835A1 Data exchanging method and device
05/03/1983CA1145854A1 Apparatus for direct device-to-device data transfer
04/1983
04/28/1983WO1983001544A1 High speed data bus structure and system
04/27/1983EP0077657A2 Apparatus and methodology for configuration of an input/output digital circuit among different input/output protocols
04/27/1983EP0077619A1 Data-packet driven digital computer
04/27/1983EP0077328A1 Multi-master processor bus
04/26/1983US4381543 Controller port switch arrangement for sharing stored data among different systems
04/26/1983US4381542 System for interrupt arbitration
04/26/1983US4381456 Input interface unit for programmable logic controller
04/26/1983CA1145476A1 Diagnostic display terminal system
04/20/1983EP0077154A1 Digital data processor with high reliability and method
04/20/1983EP0077153A1 Digital data processor with fault-tolerant bus protocol
04/20/1983EP0077008A2 Interface apparatus in a data processing system
04/20/1983EP0077007A2 Secondary storage facility employing serial communications between drive and controller
04/20/1983EP0076903A2 Emulation of data processing display terminals of variable screen size on the display of a text processor
04/20/1983EP0076902A2 System for converting data processing information to text processing format and vice versa
04/20/1983EP0076901A2 Interactive display terminal with alternating data processing and text processing sessions with text processing status line operable during data processing session
04/20/1983EP0076846A1 Data processing system having error checking capability.
04/19/1983US4380798 Semaphore register including ownership bits
04/19/1983CA1145053A1 Distributed single board computer industrial control system
04/19/1983CA1145005A1 Data processing apparatus with parallel encoded priority
04/19/1983CA1145004A1 Data processing apparatus with serial and parallel priority
04/19/1983CA1145003A1 Computer channel access circuit for multiple input-output devices
04/19/1983CA1145002A1 System for the asynchronous transporting of data between active functional units
04/19/1983CA1145001A1 Data processing system having centralized bus priority resolution
04/14/1983WO1983001328A1 Method and means using digital data processing means for locating representations in a stored textual data base
04/14/1983WO1983001326A1 Interface mechanism between host processor and peripheral-controlling processor
04/14/1983WO1983001323A1 Cache memory using a lowest priority replacement circuit
04/14/1983WO1983001322A1 Peripheral-controller for i/o subsystem using slow devices
04/14/1983WO1983001321A1 Secondary storage facility employing serial communications between drive and controller
04/14/1983WO1983001315A1 Method and apparatus for establishing priority between processing units
04/14/1983WO1983001314A1 Conversation bus for a data processing system
04/13/1983EP0076655A1 Computer peripheral control apparatus
04/13/1983EP0076654A1 Digital logic for priority determination
04/13/1983EP0076494A2 Data transmission bus system for a plurality of processors
04/13/1983EP0076408A2 Functional addressing method for a multiplexed data bus
04/13/1983EP0076401A2 Self adjusting, distributed control, access method for a multiplexed single signal data bus
04/13/1983EP0010194B1 Maintenance interface device for a data processing installation with a central processing unit and with a service processor, and process for its operation
04/12/1983US4380067 Error control in a hierarchical system
04/12/1983US4380065 Communication multiplexer variable priority scheme
04/12/1983US4380052 Single transmission bus data network employing a daisy-chained bus data assignment control line which can bypass non-operating stations
04/12/1983CA1144654A1 Programmable controller with high density i/o interface
04/06/1983EP0076196A1 System to arbitrate access requests of several processors to common resources by means of a common bus
04/06/1983EP0076155A2 Memory system
04/06/1983EP0076097A2 S.T.O. stack control system
04/06/1983EP0075903A2 Method and means using digital data processing means for locating representations in a stored textual data base
04/06/1983EP0075729A2 Operating system in an integrated office for the communicative interaction of several office terminals with an electronic house-mail system
04/06/1983EP0075688A2 Data processing apparatus including a selectively resettable peripheral system
04/06/1983EP0075666A2 Control arrangement for magnetic bubble memories
04/06/1983EP0075625A1 Conversation bus for a data processing system
04/05/1983US4379340 Communications subsystem idle link state detector
04/05/1983US4379328 Linear sequencing microprocessor facilitating
04/05/1983US4379327 Universal interface circuit for synchronous and asynchronous buses
03/1983
03/31/1983WO1983001135A1 Multiprocessor computer system
03/31/1983WO1983001133A1 Microprocessor with memory having interleaved address inputs and interleaved instruction and data outputs
03/31/1983WO1983001132A1 Apparatus for routing data amoung low order units and a high order host computer system
03/30/1983EP0075480A2 Serial data communication system
03/29/1983US4378591 Memory management unit for developing multiple physical addresses in parallel for use in a cache memory
03/29/1983US4378589 Undirectional looped bus microcomputer architecture
03/29/1983US4378588 Buffer control for a data path system
03/29/1983CA1143858A2 Memory refresh for high speed compact digital computer system
03/29/1983CA1143856A1 Circular-queue structure
03/29/1983CA1143855A1 Shared storage for multiple processor systems
03/29/1983CA1143854A1 Apparatus for interconnecting the units of a data processing system
03/29/1983CA1143853A1 Busy indicating arrangement for bus in a data processing system
03/29/1983CA1143852A1 Multiprocessor mechanism for handling channel interrupts
03/29/1983CA1143850A1 Method and apparatus to execute data transfer between computing devices
03/29/1983CA1143849A1 Protection apparatus for multiple processor systems
03/23/1983EP0074865A2 Expandable and contractible local area network system
03/23/1983EP0074704A2 Subsystem controller
03/22/1983US4377852 Terminal emulator
03/22/1983US4377843 Data distribution interface
03/16/1983EP0074300A2 Memory control circuit for subsystem controller
03/15/1983US4376982 Protocol for inter-processor dialog over a communication network
03/15/1983US4376975 Arbitration controller providing for access of a common resource by a plurality of central processing units