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5978571 Method and apparatus for synchronous circuit simulation design by eliminating unneeded timing behaviors prior to simulation run-time  
A method for use in the design or implementation of a synchronous circuit having nodes interconnecting logic functions and in which the nodes assume logic values in successive clocked phases of a...
5978584 Debugging apparatus for debugging a program by changing hardware environments without changing program operation state  
A debugging apparatus is disclosed which verifies a program to be embedded into a target machine by running the program in an environment which is one or the target machine, an emulator, and a...
5974492 Method for input/output port replication using an interconnection bus  
A bus connects a first and second integrated circuit. The bus includes a frame sync line which indicates the beginning of a frame when asserted, each frame containing a predetermined number time...
5970237 Device to assist software emulation of hardware functions  
Apparatus and method of assisting software emulation of hardware functions in a processor. During a read cycle on an address bus, an address that is within a predetermined address range is stored...
5964893 Data processing system for performing a trace function and method therefor  
A data processor (3) executes a real time trace function which allows an external development system (7) to dynamically observe internal operations of data processor (3) without assuming a type or...
5960201 Numeric intensive development environment  
This invention describes a numeric intensive development environment for producing code for various fixed point DSP's and providing a debug capability that assists the user by displaying various...
5951704 Test system emulator  
An emulator software in a semiconductor test system for emulating hardware in the semiconductor test system as well as a semiconductor device to be tested without need to use an actual test system...
5949984 Emulator system  
An emulator system capable of solving a problem of a conventional emulator system in that it requires a gate array for executing a port function of a peripheral emulation chip because external...
5946471 Method and apparatus for emulating laboratory instruments at remote stations configured by a network controller  
An improved laboratory instrument emulation network system is provided having instrument emulation stations and an instrument emulation network controller in which the emulation network system...
5946472 Apparatus and method for performing behavioral modeling in hardware emulation and simulation environments  
In accordance with the present invention, a system for providing high-speed sequential modeling in a simulator or emulator environment is provided. The system includes a sequential control system...
5943490 Distributed logic analyzer for use in a hardware logic emulation system  
A hardware emulation system is disclosed which reduces hardware cost by time-multiplexing multiple design signals onto physical logic chip pins and printed circuit board. The reconfigurable logic...
5937179 Integrated circuit design system with shared hardware accelerator and processes of designing integrated circuits  
An interactive environment is provided for integrated circuit (IC) designers to do an emulation session on a hardware accelerator 111 and then move to simulator 131, and vice versa. An aspect of...
5933621 Method and Apparatus for terminal emulation in a semiconductor fabricating facility  
A method and apparatus for emulating a dedicated terminal in semiconductor fabricator having a back end that includes a source of semiconductor substrates, a transport mechanism for transporting...
5930496 Computer expansion slot and associated logic for automatically detecting compatibility with an expansion card  
An apparatus and method for determining the types of expansion cards connected to the expansion slot connectors of a computer system. Detect signals are provided to decode logic for determining...
5926832 Method and apparatus for aliasing memory data in an advanced microprocessor  
Apparatus and a method for storing data already stored at an often utilized memory address in registers local to a host processor and maintain the data in the registers and memory consistent so...
5926631 Network computer emulator systems, methods and computer program products for personal computers  
Network computer emulator systems, methods and computer program products for personal computers can provide many of the advantages of network computers to personal computers, without requiring the...
5923865 Emulation system having multiple emulated clock cycles per emulator clock cycle and improved signal routing  
A logic emulation system for emulating the operation of a circuit. A uniform routing architecture is provided where a first set of selectors (multiplexers) is coupled to a set of shift registers...
5920712 Emulation system having multiple emulator clock cycles per emulated clock cycle  
An emulator system allowing a single cycle in a system clock in a user circuit to be emulated in multiple cycles of the emulator system clock. The emulator system provides a unique architecture...
5915106 Method and system for operating a scanner which emulates a disk drive  
A scanner is provided with a disk drive emulator and is attached to a general purpose computer via a SCSI bus. The disk drive emulator provides signals such that the general purpose computer...
5913051 Method of simultaneous simulation of a complex system comprised of objects having structure state and parameter information  
Simulation of a complex system begins by generating a plurality of system objects (12) describing items within the system through structural information within the system object (12). Each system...
5911059 Method and apparatus for testing software  
A system for testing and analyzing electronic systems, including a target processor and simulated target circuitry, and an associated target program to be executed on the target microprocessor....
5911061 Program data creating method and apparatus for use with programmable devices in a logic emulation system  
A program data creating method and apparatus for use with programmable devices in a logic emulation system provides high-speed logic emulation of an LSI for logic and function verification. The...
5909568 Process and apparatus for transferring data between different file formats  
Disclosed is a process and apparatus for transferring data between an active file being used by an application and an external file that is stored on a storage medium. The active file will...
5905886 Emulator having single port memories for simultaneous recording and reading of measurement data  
An emulator controls two single port memories by switching to exclusively connect the single port memories to a target microcomputer and a control microcomputer.
5898861 Transparent keyboard hot plug  
A computer system that provides for transparent plugging and unplugging of a keyboard independent of system operation. A virtual keyboard device communicates with the system keyboard controller...
5898859 Address shadow feature and methods of using the same  
An address shadow feature and methods of using the same. A slave controller of the present invention includes an address register coupled to receive a device address from a secondary bus...
5896522 Selective emulation interpretation using transformed instructions  
A system and method for providing high speed emulation of a computer system by transforming selected target instructions and bypassing target instruction decoding for those target instructions...
5892961 Field programmable gate array having programming instructions in the configuration bitstream  
A programmable gate array (FPGA) comprises a CPU coupled to a configuration memory array. Bitstream data used for configuring the configuration memory array is encoded to combine programming...
5892939 Emulator for visual display object files and method of operation thereof  
A system for, and method of, emulating, on a non-native computer, a native environment for a visual display object file for a real time process control system and a real time process control...
5890014 System for transparently identifying and matching an input/output profile to optimal input/output device parameters  
A system and method is provided for optimizing the data transfer performance between a host computer and a peripheral data storage device adapted to transfer data in accordance with an internal...
5889954 Network manager providing advanced interconnection capability  
A network manager for configuring and controlling a simulated telecommunications network having a plurality of nodes which communicate in a plurality of communications protocols. The network...
5872954 Method of monitoring registers during emulation  
A method for reading various registers of a computer system without changing the emulator software. Address register 22, data memory I/O 30 and control register 26 surrounding D-MEM (data memory)...
5870589 Method for enhanced broadcast and unknown server operation  
Provided are a method and system for achieving enhanced performance in communications involving one or more emulated networks overlaid onto at least one base network, where the emulation is...
5867689 Method and apparatus for emulating a digital cross-connect switch network using a flexible topology to test MCS network management  
A method and apparatus for emulating a digital cross-connect switching (DXC) network fully tests a telecommunication network monitoring and control system (MCS). The communication and behavior of...
5862365 Configuration pin emulation circuit for a field programmable gate array  
An integrated circuit for providing a pin-for-pin replacement of a field programmable gate array (FPGA). The integrated circuit includes an emulation circuit for mimicking the programmable stage...
5848261 System and method for remote printer emulation in a network  
An interactive computer system having one or more user terminals connected to at least one host server via a network system and having a printer connected to one of the host servers includes a...
5841670 Emulation devices, systems and methods with distributed control of clock domains  
An emulation device (11) distributes common control information (8801) to each of a plurality of clock domains (1213, 1215, 1217) into which the emulation device is partitioned, and also provides...
5842003 Auxiliary message arbitrator for digital message transfer system in network of hardware modules  
A hardware message transfer control unit designated as the Auxiliary Message Arbitrator Unit (AMA) manages message transfers and transfer protocols in a network of sending and receiving digital...
5838908 Device for having processors each having interface for transferring delivery units specifying direction and distance and operable to emulate plurality of field programmable gate arrays  
A virtual field programmable gate array device (20) includes a plurality of processors (22), each containing a central processing unit (24), memory (34), and a network interface (26). Each...
5838952 Emulator apparatus to break running program when variable is read without being initialized  
An emulator apparatus includes an access information memory in which, when an emulation program makes a write access to a memory address of a microcomputer, and information showing the presence of...
5832251 Emulation device  
An emulation device comprising an evaluation microcomputer 100 incorporating a rewritable micro RAM 204, an emulation memory 103 substituting a memory means for a user's program, a supervisor CPU...
5822781 Sector-based storage device emulator having variable-sized sector  
A solid state memory disk that stores data on a sector basis is described. The solid state disk includes an array of FLASH memory devices, which store the sectors of data. Each block of memory...
5812818 Apparatus and method for translating facsimile text transmission  
A translating facsimile machine includes a facsimile input receiver which feeds a facsimile input signal representative of a source language text to an optical character recognizer. The optical...
5812819 Remote access apparatus and method which allow dynamic internet protocol (IP) address management  
A user at a remote computer is provided access to a computer network by a remote access device coupled to the network. The remote access device receives from the remote computer a username which...
5812825 Integrated console and console apparatus and method for use thereof  
An integrated console connected to a plurality of computer systems for sending a command entered from an input device to one of the computer systems which executes commands corresponding to the...
5809559 System and method utilizing a virtual addressing buffer circuit to emulate a device which is physically not present  
A method and apparatus using a virtual addressing buffer circuit afford address mapping and control flexibility to provide a unique opportunity for device emulation and software debugging. The...
5809286 Method and apparatus for emulating a dynamically configured digital cross-connect switch network  
A method and apparatus for emulating a digital cross-connect switching (DXC) network, such as a DXC 1/0 network, fully tests a telecommunication network monitoring and control system (MCS). The...
5808921 Interface emulation system and method for applications utilizing embedded processors  
A system for testing an embedded control processor for a spacecraft comprises an Emulated Spacecraft Control Processor (24) which contains the embedded processor (26), a simulation engine (12),...
5796623 Apparatus and method for performing computations with electrically reconfigurable logic devices  
A plurality of electronically reconfigurable gate array (ERCGA) logic chips are interconnected via a reconfigurable interconnect, and electronic representations of large digital networks are...
5794013 System and method for testing computer components in development environments  
A device emulator for use in testing pre-release program code emulates and replaces a first storage device such as a SCSI CD ROM drive containing the program code on CD ROM with a second storage...