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)
01/1992
01/07/1992US5079696 Apparatus for read handshake in high-speed asynchronous bus interface
01/07/1992US5079692 Controller which allows direct access by processor to peripheral units
01/07/1992CA1294057C Arbitration technique for a split transaction bus in a multiprocessor computer system
01/03/1992CA2045087A1 Shared arbitration apparatus suitable for deaf node
01/02/1992EP0463943A2 Fast arbiter having easy scaling for large numbers of requesters, large numbers of resource types with multiple instances of each type, and selectable queuing disciplines
01/02/1992EP0463775A2 Multiple speed expansion card
01/02/1992EP0463764A2 Common agent computer management system and method
01/02/1992EP0463721A2 Digital signal processing device
01/02/1992EP0463352A2 Microprocessor for use in in-circuit emulator having function of discriminating users space and in-circuit emulator space
01/02/1992EP0463316A1 Self-adjusting impedance matching driver
01/02/1992EP0463296A2 An in-memory preprocessor for a scalable compound instruction set machine processor
01/02/1992EP0463251A1 Software installation
01/02/1992EP0463172A1 Object oriented distributed processing system
01/02/1992DE4020809A1 Signal exchange procedure via serial bus - selectively transmitting byte or bit oriented data telegrams from central exchange
12/1991
12/31/1991US5077733 Priority apparatus having programmable node dwell time
12/31/1991US5077730 Method of auditing primary and secondary node communication sessions
12/31/1991US5077684 System for accurately informing each of adapters of its packaged location
12/31/1991US5077664 Direct memory access controller
12/31/1991US5077662 Microprocessor control system having expanded interrupt capabilities
12/31/1991US5077656 CPU channel to control unit extender
12/31/1991US5077655 Communication control device in computer system
12/31/1991CA1293820C Input/output network for computer system
12/30/1991CA2042711A1 High speed bus system
12/29/1991CA2044022A1 Common agent computer management system and method
12/27/1991EP0462725A2 Electronic mail handling in a mutli-user environment
12/27/1991EP0462691A2 Data processing apparatus having a user inquiry facility
12/27/1991EP0462622A2 Microprocessor capable of ensuring flexible recovery time for I/O device
12/26/1991WO1991020044A1 Communication exchange system for a multiprocessor system
12/26/1991WO1991020042A1 Fast interrupt mechanism for a multiprocessor system
12/26/1991WO1991020041A1 Multiple request toggling priority arbitration system
12/26/1991WO1991020040A1 Remote terminal interface as for a unixtm operating system computer
12/23/1991CA2045328A1 Fast arbiter having easy scaling for large numbers of requesters, large numbers of resource types with multiple instances of each type, and selectable queuing disciplines
12/21/1991WO1991020160A1 Two party memory access arbitrator
12/21/1991CA2085891A1 Two party memory access arbitrator
12/18/1991EP0462014A2 Method of controlling a duplex data storage system and data processing system using the same
12/18/1991EP0461971A1 Electronic connection device
12/18/1991EP0461219A1 Serial interrupt in microcomputers.
12/17/1991US5073969 Microprocessor bus interface unit which changes scheduled data transfer indications upon sensing change in enable signals before receiving ready signal
12/17/1991US5073871 Main storage access priority control system that checks bus conflict condition and logical storage busy condition at different clock cycles
12/17/1991US5073730 Current transient reduction for vlsi chips
12/17/1991CA1293339C Electronic data display device
12/17/1991CA1293328C Remote services console for digital data processing system
12/15/1991WO1991020024A1 Generating communication arrangements for massively parallel processing systems
12/15/1991CA2083255A1 Generating communication arrangements for massively parallel processing systems
12/12/1991WO1991019404A1 Device with a plug-in circuit board for the control of data communication
12/12/1991WO1991019275A1 Character output control method and apparatus for terminal
12/12/1991WO1991019246A1 Unix peripheral device interface
12/11/1991EP0461058A2 Method for managing the distribution of documents in a data processing system
12/11/1991EP0460853A2 Memory system
12/10/1991US5072420 FIFO control architecture and method for buffer memory access arbitration
12/10/1991US5072374 Method for communicating among a plurality of programmable logic controllers each having a dma controller
12/10/1991US5072370 System and method for monitoring electronic data processing equipment
12/10/1991US5072369 Interface between buses attached with cached modules providing address space mapped cache coherent memory access with SNOOP hit memory updates
12/10/1991US5072366 Data crossbar switch
12/10/1991US5072365 Direct memory access controller using prioritized interrupts for varying bus mastership
12/10/1991US5072363 Multimode resource arbiter providing round robin arbitration or a modified priority arbitration
12/10/1991CA1293063C Binary tree multiprocessor
12/05/1991DE4017771A1 Data card data transmission control appts.
12/04/1991EP0459877A1 Computer system arrangement for data transfer in burst mode
12/04/1991EP0459752A2 Network adapter using buffers and multiple descriptor rings
12/04/1991EP0459714A2 Interrupt processing allocation in a multiprocessor system
12/04/1991EP0459345A1 Management method of a database network
12/04/1991EP0459247A2 Event driven scanning of data input equipment using multi-input wake-up techniques
12/04/1991EP0459134A2 Dynamic load balancer for shared data base transaction processing
12/04/1991EP0458798A1 Current control circuit.
12/04/1991CN2090078U Indicating apparatus with multiple indication cards
12/04/1991CN1056760A Arrangements for handling data of use cpu
12/03/1991US5070477 Port adapter system including a controller for switching channels upon encountering a wait period of data transfer
12/03/1991US5070473 Microprocessor
12/03/1991US5070449 Bus interface controller for computer graphics
12/03/1991US5070443 Apparatus for write handshake in high-speed asynchronous bus interface
11/1991
11/28/1991WO1991018346A1 Device for transmitting a synchronous data
11/28/1991WO1991018342A1 Programmable signal processor architecture
11/27/1991EP0458756A1 Data transfer in DMA mode during a wake up phase of a microprocessor in a wait for interrupt condition for reducing power consumption
11/27/1991EP0458693A2 Document data input system for a scanner
11/27/1991EP0458648A2 Communication interface for serial transmission of variable length data tokens
11/27/1991EP0458625A1 Data transfer controlling device
11/27/1991EP0458554A2 Method and apparatus for formatting data on DASD arrays
11/27/1991EP0458516A2 Memory access bus arrangement
11/27/1991EP0458304A1 Direct memory access transfer controller
11/27/1991EP0458120A2 Method and arrangement for searching for a resource across two architecturally dissimilar computing networks
11/27/1991CN2089643U Data exchange storage
11/26/1991US5068848 Multi-access device
11/26/1991US5068820 Data transfer system having transfer discrimination circuit
11/26/1991US5068785 Bus control for small computer system interface with transfer indication preceding final word transfer and buffer empty indication preceding receipt acknowledgement
11/26/1991US5068781 Method and apparatus for managing multiple lock indicators in a multiprocessor computer system
11/26/1991CA1292556C User terminal for videotex
11/22/1991WO1991018344A1 Queue-based inter-process communications system for digital data processing system
11/22/1991CA2062968A1 Queue-based inter-process communications system for digital data processing system
11/21/1991EP0457608A2 Apparatus for selecting a clock signal of a circuit controlled by a single chip microcomputer
11/21/1991EP0457437A2 Data processing system having plural adapters connecting plural peripheral devices
11/21/1991EP0457112A2 Asynchronous resynchronization of a commit procedure
11/21/1991EP0457109A2 Coordinated handling of error codes and information describing errors in a commit procedure
11/21/1991EP0456946A1 Method and apparatus for recognition of a framing pattern distributed in a serial bit stream
11/21/1991EP0456920A2 Remote authentication and authorisation in a distributed data processing system
11/21/1991EP0456690A1 Read/write head buffer.
11/21/1991EP0321493A4 A content-addressable memory system
11/21/1991DE4015457A1 Fernmess- und stellsystem Telemetry and ordering system
11/20/1991CN1014841B Virtual input/output commands
11/19/1991US5067154 Terminal management method and apparatus