Match Document Document Title
5548719 System and method for analyzing large logic trace array  
A system and method for analyzing large logic traces, with the system having an input for regular expressions, a generator for receiving the regular expressions and generating finite automata...
5533193 Method of saving machine fault information including transferring said information to another memory when an occurrence of predetermined events or faults of a reproduction machine is recognized  
A technique for saving data related to given machine events in a control that normally records machine events or faults in a first-in, first-out buffer of finite size called an occurrence log by...
5513321 Multiprocessor system discharging data in networking apparatus in response to off-line information from receiver-side processor  
A multiprocessor system containing a networking apparatus and a plurality of processors for transferring data through the networking apparatus from one to another of the plurality of processors....
5511163 Network adaptor connected to a computer for virus signature recognition in all files on a network  
A data processing system comprising a plurality of computers interconnected through a local network, preferably in the form of a ring. The network being connected to a network adapter which is...
5500944 Fault indication system in a centralized monitoring system  
The present invention relates to a fault indication system in a centralized monitoring system for monitoring multiple devices speedily identifies and indicates a fault which is occurring, to...
5497460 System and method for determining network connectivity  
A system (such as a multiprotocol LAN adapter) for use in a workstation or other processing machine automatically determines the type of network to which the workstation is connected and for...
5491792 Sequence of events system using a redundant analog I/O board system  
In a sequence-of-events system for a distributed process control system, unfiltered changes in process element status are initially stored at each remote site along with a time tag. Each remote...
5490249 Automated testing system  
A method and apparatus for testing software programs systematically explores valid call sequences using a collection of data with a software program comprising a collection of subroutine...
5473769 Method and apparatus for increasing the speed of the detecting of computer viruses  
A method and apparatus for increasing the speed at which a computer can scan files for computer viruses examines the initial state information of each file and stores this state information in a...
5467462 Event driven logic simulator for partial simulation  
Event driven logic simulator for partial simulation is provided. An event storage has an event attribute storage section for indicating whether an event is preset before the execution of...
5461628 Network system capable of network elements with decreasing load of a monitoring device  
A network system comprises a plurality of network elements connected to one another and a monitoring device for monitoring the network elements. Each of the network elements produces first through...
5450349 Computer system performance evaluation system and method  
A system for evaluating the performance of a computer system having a processor that passes through a plurality of processor states during operation and an associated system memory includes an...
5440688 Network management system employing a main processor and an auxiliary processor to receive alarm messages and transmit recovery commands  
In a network management system, a main processor is connected to nodes of a network to receive alarm messages therefrom and to transmit command messages thereto. Unique relationships between alarm...
5428766 Error detection scheme in a multiprocessor environment  
An error detection scheme to detect a variety of errors, including buffer accesses errors, buffer ownership transfer errors, and address recognition engine access errors, that may occur during the...
5347524 Protocol analyzer  
A protocol analyzer is provided for monitoring a selected communication connection being conducted in accordance with a predetermined protocol by the exchange of protocol data units between two...
5327550 Disabled memory sections for degraded operation of a vector supercomputer  
Maintenance modes of operation of a multiprocessing vector supercomputer system are disclosed. The modes allow diagnostics to run on a failed portion of the system while simultaneously allowing...
5299206 System and method for analyzing complex sequences in trace arrays using multiple finite automata  
A system and method for analyzing complex overlapping sequences of events in trace arrays, with the system having an input for receiving regular expressions that have been grouped in a...
5297274 Performance analysis of program in multithread OS by creating concurrently running thread generating breakpoint interrupts to active tracing monitor  
A method and apparatus for implementing a sampling performance analysis for a selected application within a multi-thread operating system having a high degree of isolation between applications...
5295187 Illegal copy prevention apparatus  
An illegal copy prevention apparatus including a plurality of illegal copy discriminators (e.g. instructions to set flags), an event generator (e.g. detections of "0" sec in real time)...
5287506 Token ring network protocol analyzer  
A method and apparatus for inserting a computer network protocol analyzer into a Token Ring network. Commercial integrated circuits are used to initiate a standard protocol test and...
5287363 System for locating and anticipating data storage media failures  
Method and apparatus for use in a computer having peripheral data storage, to monitor data transfers to detect defective or marginally defective storage areas. The method and apparatus are based...
5282213 Computer-based logic analyzer timing and analysis system  
A method and apparatus for performing signal interval timing analyses using a multi-channel logic analyzer and a host computer. Timing signal intervals to be measured are defined by an operator in...
5220662 Logic equation fault analyzer  
In order to provide the facility in an information processing system to analyze system faults which result in the setting of one or more flags, a logic equation fault analyzer utility program is...
5214784 Sequence of events detector for serial digital data which selectively outputs match signal in the series which defines detected sequence  
A sequence of events detector provides a way to continuously monitor serial digital data and precisely define the behavior that it must exhibit in order to qualify as the sequence of events that...
5142673 Bus monitor with dual port memory for storing selectable trigger patterns  
A monitor for selectively detecting and recording conditions at selected points within a system includes a trigger memory for storing patterns of trigger signals, wherein each pattern of trigger...
5067130 Method for acquiring data in a logic analyzer  
A logic analyzer stores the activity around the last in a series of triggering events while also storing the activity around several other triggering events immediately preceding the last trigger....
4792921 Network event identifiers  
Identifiers for events occurring at a network node are generated responsive to the time of the event, to a telephone number associated with the node, and to an event characteristic. In a network...
4764863 Hardware interpreter for finite state automata  
Apparatus and method for monitoring transactions on a high speed interface us and for selectively storing information about such transactions together with the time of such transaction and the...
4752928 Transaction analyzer  
A transaction analyzer, for use in conjunction with a data acquisition system having a probe for accessing binary data, i.e. address and control signals appearing at the terminals of an operating...
4748624 System for determining occurrence sequence of sampled data  
In a logic analyzer including first and second sampling channels operative with different clocks independently, a system for determining sequence in time in which the sampled data are generated in...
4672574 Data communication system with terminal for displaying the coded stream of data being transmitted  
A communication system is provided in which one data transmitting display terminal has the capability of transmitting a data stream in coded form to at least one data receiving terminal over a...
4636940 Logic analyzer using source program or other user defined symbols in the trace specification and the trace listing  
A logic state analyzer allows a user to include symbols defined in source program listings, as well as other specially defined symbols, in the trace specification. Such symbols represent unique...
4622652 Signal identification  
A device and process for identifying signals in microprocessors-based circuits includes a probe, a display a target interface and a control system based on a similar microprocessor. Sets of signal...
4611281 Apparatus for analyzing microprocessor operation  
The apparatus for analyzing the operation of a microprocessor provides a switch for instructing the commencement of a data search and a switch for specifying an internal register of the...
4550407 Method of analyzing broadcast data, a network analyzer implementing such a method, and receiver equipment using such an analyzer  
A teletext network analyzer includes a coupler for forwarding received data to a data processor. The coupler is programmable by the data processor to select data associated with one or more...
4483002 Digital device testing apparatus and method  
Testing apparatus monitors signals at selected test points in a tested device. An operator specifies sets of signals defining a display window during which all signals at the selected test points...
4455624 Logic state analyzer with format specification  
Ongoing succession of states occurring in a collection of digital signals is monitored by a logic state analyzer which stores either all such states or a selected subset thereof meeting certain...
4434488 Logic analyzer for a multiplexed digital bus  
A logic analyzer for measuring individually a plurality of logic signals transmitted via a multiplexed digital bus in a time-sharing manner is disclosed. First and second memory circuits store...
4348636 Integrated circuit tester  
An integrated circuit tester, comprising switching means for adjusting the logic state of the pins of a test socket to a logic state of "1" and "0" and following a debounced pulsating signal,...
4293925 Apparatus and method for indicating a minimum degree of activity of digital signals  
A general purpose logic state analyzer selectively stores, formats and displays a digital signal representing a sequence of data states input thereto and provides a graphical display of the stored...
4282584 Mini-programmable controller  
A small, low-cost programmable controller is programmed with both bit-oriented and word oriented program instructions that are stored in a main memory. A microprocessor couples each program...
4176402 Apparatus for simultaneously measuring a plurality of digital events employing a random number table  
Apparatus for measuring the rate of occurrence and duration of digital events through the technique of multiple sampling at times random to the occurrence of the digital events. The digital events...
3826908 DATA TELECOMMUNICATIONS ANALYZER  
A protocol analyzer for monitoring line control characters in a binary synchronous data telecommunications system comprising a control character trap means having a character decode means and...