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Patent # Description
US-5,574,901 Method and apparatus for object traversing suitable for structured memory formed by linked objects
An object traversing scheme in which the traverse procedure and the traverse rights can be specified flexibly. In this scheme, the object is stored with an...
US-5,574,900 System and method for optimizing parallel processing of database queries
The present invention provides a system and method for retrieving data from a computerized database system. Prior to execution of a query statement, the system...
US-5,574,899 Generation number managing apparatus for adjusting generation numbers among processors or program files
A generation number managing apparatus for adjusting generation numbers among processors or program files in a multiprocessor system, includes: a generation...
US-5,574,898 Dynamic software version auditor which monitors a process to provide a list of objects that are accessed
A data processing system and method features an object selector including an auditor for recording, as an audit record, which versions of objects are accessed by...
US-5,574,897 System managed logging of objects to speed recovery processing
System control over the logging of objects in order to meet the user specified recovery requirements. Under the fixed recovery time environment, the user chooses...
US-5,574,896 Framing circuit that increases the pulse width of the byte clock signal after the byte clock signal is reset
A framing circuit, which frames bytes of data received from a serial data bit stream, prevents a short byte clock pulse from being formed when the byte clock...
US-5,574,895 Multi-memory function programmable counter and timer
A multi-memory function programmable counter or multi-memory function programmable timer capable of selectively assuming a plurality of counter or timer...
US-5,574,894 Integrated circuit data processor which provides external sensibility of internal signals during reset
An integrated circuit terminal of a data processing system (10) is used to communicate multiplexed signals with an external device. During a reset operation in...
US-5,574,893 Computer logic simulation with dynamic modeling
A method for improving the performance of a computer logic simulator in a computer system in which the operation of a logic design is simulated by converting a...
US-5,574,892 Use of between-instruction breaks to implement complex in-circuit emulation features
A processor uses between-instruction in-circuit emulation breaks to implement complex in-circuit emulation features. The processor uses a bit in hardware that...
US-5,574,891 Method for managing the input codes from keyboard and pointing device
A method for managing the input codes from the keyboard and the point device and an apparatus thereof are provided. When the computer system is not coupled to a...
US-5,574,890 Computer design tool for rotary slitting of metal and a method of use thereof
A computer design tool for determining a predictive indication of slit width variation to adjust an arbor setup in rotary slitting of metal in accordance with...
US-5,574,889 Apparatus for selecting and evaluating design based on stored information
The invention is a design evaluation apparatus for evaluating a design composed of a plurality of design elements. The apparatus has a database stored therein....
US-5,574,888 A method and apparatus for establishing compatibility between communication applications producing at commands...
An interface for enabling data communication software applications previously sold in the commercial marketplace to utilize a Telephony Application Programming...
US-5,574,887 Apparatus and method for emulation routine pointer prefetch
An apparatus and method for emulation routine pointer prefetch are disclosed. The apparatus includes an emulated program counter (EPC), a prefetch state machine,...
US-5,574,886 Data processing system for encoding and compressing a pattern data and for decoding the encoded and compressed...
An information processing apparatus includes a change point detection unit for obtaining dot change point positions and the number of change points in units of...
US-5,574,885 Modular buffer memory with separately controllable logical output queues for use in packet switched networks
A modular system for a buffer memory used for storing output queues (80a-k) of a packet switch is described. A series of memories (90) are each connected to both...
US-5,574,884 DRAM control circuit
A DRAM control circuit according to the present invention, comprising a DRAM, a DRAM controller adapted for receiving an address, write data, and a data rewrite...
US-5,574,883 Single chip processing unit providing immediate availability of frequently used microcode instruction words
A multi-cache memory system resides on-chip with a system interface to external memory. A general cache memory holds frequently used data and OPCODES for...
US-5,574,882 System and method for identifying inconsistent parity in an array of storage
A system and method are provided that is used by software implemented Redundancy Array of Inexpensive Disk (RAID) arrays to achieve adequate performance and...
US-5,574,881 High capacity data storage method and system using independently controlled heads and circuitry for monitoring...
A fast access high capacity data storage system and method are disclosed, the data storage system including a disk-based storage system employing a plurality of...
US-5,574,880 Mechanism for performing wrap-around reads during split-wordline reads
A memory with at least two banks, each bank capable of storing N=2.sup.n unique lines of data, each lines of data addressable by an n-bit code corresponding to...
US-5,574,879 Addressing modes for a dynamic single bit per cell to multiple bit per cell memory
A memory system contains memory cells for storing multiple threshold levels to represent storage of "n" bits of data. The memory system includes an address...
US-5,574,878 Method of parallel purging of translation lookaside buffer in a multilevel virtual machine system
A method fr purging a translation lookaside buffer purges only those entries required to be purged in order to eliminate overhead incurring degradation in the...
US-5,574,877 TLB with two physical pages per virtual tag
A TLB which has at least two page frame numbers (PFN) associated with each tag (Virtual Page Number) is provided. Thus, a match will produce two possible...
US-5,574,876 Processor system using synchronous dynamic memory
A main storage apparatus is a synchronous dynamic memory having a plurality of memory banks and a node register for determining an operation mode, a main storage...
US-5,574,875 Cache memory system including a RAM for storing data and CAM cell arrays for storing virtual and physical addresses
A fully associative cache memory for virtual addressing comprises a data RAM (50), a first CAM cell array (51) for holding virtual page addresses which each...
US-5,574,874 Method for implementing a checkpoint between pairs of memory locations using two indicators to indicate the...
A method for memory checkpointing which does not involve copying of data and that is virtually instantaneous involves designating the active location at a...
US-5,574,873 Decoding guest instruction to directly access emulation routines that emulate the guest instructions
A system for decoding guest instructions includes an emulation routine store in host processor addressable memory having a set of emulation programs beginning at...
US-5,574,872 Method and apparatus for controlling the saving of pipelines in pipelined processors during trap handling
A processor and method implemented in a processor, having a pipeline and trap generation capabilities, for indicating a pipelined instruction and for generating...
US-5,574,871 Method and apparatus for implementing a set-associative branch target buffer
A Branch Target Buffer Circuit in a computer processor that predicts branch instructions with a stream of computer instructions is disclosed. The Branch Target...
US-5,574,870 Method for the commissioning of an interface to be allocated to different transmission paths in a...
ISDN basic interface S.sub.o of an ISDN communication system that can be connected to an S.sub.o interface of an ISDN communication terminal equipment or of an...
US-5,574,869 Bus bridge circuit having configuration space enable register for controlling transition between various modes...
A configuration space enable/disable mechanism for transferring configuration data to and from peripheral components coupled to one or more peripheral component...
US-5,574,868 Bus grant prediction technique for a split transaction bus in a multiprocessor computer system
A early bus grant prediction technique combines the operating advantages of both a split transaction bus and a simple shared bus. When a read request is...
US-5,574,867 Fast first-come first served arbitration method
A first-come-first-serve ("FCFS") scheduler that routes requests from two or more clients to a single resource. The FCFS scheduler contains a time stamp...
US-5,574,866 Method and apparatus for providing a data write signal with a programmable duration
A control circuit which allows computer systems to modify signal timing relationships in the hardware via programmable ports in the system, thereby allowing...
US-5,574,865 System for data transfer protection during module connection/disconnection onto live bus
A plurality of digital modules on a Futurebus Plus common system bus means in a network are connected by the Futurebus Plus system bus for transfer of data...
US-5,574,864 Method of implementing EISA bus devices on a host bus by disabling bridge circuitry between host and EISA buses
In a computer system with a host bus and an EISA bus, devices typically implemented on an EISA bus are instead implemented on a host bus. These devices are still...
US-5,574,863 System for using mirrored memory as a robust communication path between dual disk storage controllers
In a disk storage system having dual controllers and mirrored memory therebetween, the mirrored memory is used to establish a robust communication path between...
US-5,574,862 Multiprocessing system with distributed input/output management
A multiprocessing system uses remote file managers associated with each remote processor to prepare data for storage in a disk storage array. The data are then...
US-5,574,861 Dynamic allocation of B-channels in ISDN
An implementation of an ISDN router enables computers interconnected to each other and to the ISDN to share resources by issuing operating system commands. One...
US-5,574,860 Method of neighbor discovery over a multiaccess nonbroadcast medium
A technique for generating, distributing and maintaining a list of operational nodes in a network using a nonbroadcast communication medium, wherein the nodes...
US-5,574,859 Method and apparatus for using a software configurable connector to connect a palmtop computer having a custom...
A portable information storage and transfer device for use with IC memory card-based portable computers performs many data transfer operations. The floppy disk...
US-5,574,858 Method and apparatus for, upon receipt of data from a mouse, requiring the remainder of data needed to...
A method of operating a computer which has a CPU, an input/output coprocessor, and an attached pointing device, the input/output coprocessor receiving data in...
US-5,574,857 Error detection circuit for power up initialization of a memory array
A circuit for testing the accuracy with which data is written from a first memory cell to a second memory cell including a shift register including master and...
US-5,574,856 Fault indication in a storage device array
Method and apparatus are disclosed for providing an indication relating to certain faults that can occur during data storing operations in an array storage...
US-5,574,855 Method and apparatus for testing raid systems
An error injection test scripting system that permits a test engineer to select from a series of commands those that will induce a desired test scenario. These...
US-5,574,854 Method and system for simulating the execution of a computer program
A simulation system to simulate the execution of a computer program. The computer program is developed for invoking operating system functions of a first...
US-5,574,853 Testing integrated circuit designs on a computer simulation using modified serialized scan patterns
A method to test an integrated circuit design on a computer simulation loads a desired simulation test vector in parallel into a scan chain (30). The simulation...
US-5,574,852 Integrated microcontroller having a cup-only mode of operation which directly outputs internal timing...
For use by an emulation circuit, a non-special-custom microcontroller multiplexes a port among user data and program store addresses. It has a multistate machine...
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