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| Number | Title | Issue Date |
| 5506955 | System and method for monitoring and optimizing performance in a data processing system Optimizing of performance data in a data processing system is provided by the use of data filters and alarms. Statistics to be monitored are a conglomeration of both system statistics and statistics made available by application programs, both on local an... | 04/09/1996 |
| 5491791 | System and method for remote workstation monitoring within a distributed computing environment An automated system and method for remote workstation inventorying and monitoring within a distributed computing environment are presented. The computing environment includes a plurality of workstations interconnected by a network. Each workstation has ba... | 02/13/1996 |
| 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 components. Instead of writing unit tests, the subject invention pro... | 02/06/1996 |
| 5483637 | Expert based system and method for managing error events in a local area network An expert based system for managing error events in a local area network (LAN) includes an inference engine and a knowledge base storing data defining a plurality of causal relationships. Each of the causal relationships associates an error message with a... | 01/09/1996 |
| 5469463 | Expert system for identifying likely failure points in a digital data processing system An expert system for determining the likelihood of failure of a unit in a computer system. The operating system of the computer system maintains a log of the errors occurring for each unit in the computer system. If a predetermine number of errors have be... | 11/21/1995 |
| 5412802 | Reasoning method and fault diagnosis method and system implementing the same A reasoning method capable of easily describing a model of diagnosis, a diagnosis method based on the reasoning method and a fault diagnosis system for performing efficiently faulty component diagnosis. Basic knowledge of a domain for which a knowledge ba... | 05/02/1995 |
| 5404503 | Hierarchical distributed knowledge based machine inititated maintenance system The hierarchical distributed knowledge based system functions in a machine initiated maintenance environment to provide efficient and timely maintenance of customer equipment. The hierarchical, distributed knowledge based system provides the failure evalu... | 04/04/1995 |
| 5394543 | Knowledge based machine initiated maintenance system The knowledge based system functions in a machine initiated maintenance environment to provide efficient and timely maintenance of customer equipment. The knowledge based system provides the failure evaluation function through the use of an expert or know... | 02/28/1995 |
| 5369756 | Fault tree displaying method and process diagnosis support system In a system which performs an inference based on fault tree knowledge, a guidance and a formula of definition can be displayed in a window on a CRT display screen by selecting the individual items from a fault tree on the display screen by using, for exam... | 11/29/1994 |
| 5351247 | Adaptive fault identification system An adaptive fault identification system identifies repeat faults by capturing data representative of a fault. The captured data is subjected to a search tool and compared to data that is known to represent faults, and if possible, the unknown fault is ide... | 09/27/1994 |
| 5349674 | Automated enrollment of a computer system into a service network of computer systems A service network has several computer systems connected together. A computer system can either be a "Service Requestor" (SR), a "Service Provider" (SP), or a hybrid of the two, a "Service Provider/Requestor" (SP/R). The service network is built by an enr... | 09/20/1994 |
| 5337320 | Semi-automatic mode of network design An Expert System 10 for providing diagnostics to a data communications network 5. Alarms from a Network Manager 24 are received and queued by an Event Manager 117 and then filtered by an Alarm Filter 118 to remove redundant alarms. Alarms which are ready ... | 08/09/1994 |
| 5297150 | Rule-based method for testing of programming segments A method for determining a set of f low paths in a code listing that are most likely to fail comprises the steps of: converting the code listing to a directed acyclic graph representation, the representation including nodes and directed edges, each node r... | 03/22/1994 |
| 5293556 | Knowledge based field replaceable unit management This failure management system architecture guides, detects, validates and logs field replaceable unit (FRU) changes. This system includes a guided capability by which service personnel use the guided process to select candidates for FRU swaps or FRU repl... | 03/08/1994 |
| 5287505 | On-line problem management of remote data processing systems, using local problem determination procedures and a centralized database Automated problem analysis and resolution of a customer data-processing system uses a central service data-processor system communicating with the customer system and having a data base for converting machine, software, and symptom data into instructions,... | 02/15/1994 |
| 5282212 | Algorithm for identifying highly suspect components in fault isolation The present invention, in one embodiment, is a method for identifying highly suspect components in fault isolation. The method for identifying highly suspect components of a system wherein faulty operation has been indicated, respective components of the ... | 01/25/1994 |
| 5280515 | Fault processing system for processing faults of producing points A fault processing system processes a fault which is generated in one or a plurality of producing points which design and produce products according to orders received from customers. The fault processing system includes a first producing point which is u... | 01/18/1994 |
| 5272704 | Method and apparatus for generation of multi-branched diagnostic trees A method and apparatus for automated generation of multi-branched diagnostic trees is described. The present invention generally is practiced on model-based diagnostic systems and utilizes a candidate generator, constraint propagator and best measurement ... | 12/21/1993 |
| 5261086 | Performance analyzing and diagnosing system for computer systems A performance analyzing and diagnosing system enables a user with little knowledge or experience to evaluate the performance of a computer system. An external memory stores know-how rules and declaratively represented rules needed to solve a performance p... | 11/09/1993 |
| 5253184 | Failure and performance tracking system The occurrence of a failure within the customer system is identified using these rules, hypotheses, collected real time data as well as historical performance and diagnostic data to isolate the source of the error in the customer system and, whenever poss... | 10/12/1993 |
| 5239547 | Self-diagnosis and self-repair system for image forming apparatus The system of the present invention has a plurality of sensors 1a, 1b and 1c and a system control circuit which includes a case memory portion and a work script memory portion. In response to application of state data from the sensors 1a, 1b and 1c, the s... | 08/24/1993 |
| 5214653 | Fault finder expert system A device for finding faults in a target system that has a plurality of "LRUs", which are the lowest replaceable units in the target system. The fault finding device receives input data relating to a state of the target system, stores a probability of fail... | 05/25/1993 |
| 5195095 | Algorithm for identifying tests to perform for fault isolation The present invention, in one embodiment, is a method for identifying a test to perform for fault isolation. The method comprises the steps of identifying a loop/string of components having at least one component therein which is suspected of faulty opera... | 03/16/1993 |
| 5166934 | Self-diagnois and repair system for image forming apparatus A system according to the invention has a plurality of sensors, a system control circuit and a plurality of actuators. State data, supplied from the sensors, is compared with characteristic data in the system control circuit. From this comparison, it is j... | 11/24/1992 |
| 5161158 | Failure analysis system A failure analysis system for simulating the effect of a subsystem failure in an electronic system. The failure analysis system includes a knowledge base, a user interface, and a failure analysis component. The knowledge base simulates the electronic syst... | 11/03/1992 |
| 5159685 | Expert system for communications network An Expert System 10 for providing diagnostics to a data communications network 5. Alarms from a Network Manager 24 are received and queued by an Event Manager 117 and then filtered by an Alarm Filter 118 to remove redundant alarms. Alarms which are ready ... | 10/27/1992 |
| 5157668 | Method and apparatus for locating faults in electronic units An artificial intelligence based method and apparatus for locating faults in electronic units includes a technique for modelling electronic units in terms of behavioral constraints. Behavioral constraints model circuit components in terms of changes in ou... | 10/20/1992 |
| 5150367 | Composite range constraint propagation control A method and apparatus for constraint propagation control including determining whether more than one range is to be propagated through a selected component, propagating the one range if only one range is to be propagated, and propagated a composite range... | 09/22/1992 |
| 5127005 | Fault diagnosis expert system A fault diagnosis expert system for locating and eliminating sources of a machine trouble. The system comprises a storage part for storing an expert knowledge constructed in a hierarchical search tree structure in which cause-to-effect links connecting hi... | 06/30/1992 |
| 5123017 | Remote maintenance monitoring system A remote maintenance monitoring system retrofits to a given hardware device with a sensor implant which gathers and captures failure data from the hardware device, without interfering with its operation. Failure data is continuously obtained from predeter... | 06/16/1992 |
| 5111384 | System for performing dump analysis A system for automating the dump analysis process includes a remotely located host computer system which, in response to requests from a local expert computer system, retrieves only relevant values from one or more physical memory dumps. The expert system... | 05/05/1992 |
| 5109380 | Testing apparatus A test apparatus for data processing and/or editing test data obtained from an object unit to be tested includes, in combination, an organization trade-off element; a failure mode and effect analysis list preparation element, a design review element consi... | 04/28/1992 |
| 5107497 | Technique for producing an expert system for system fault diagnosis The present invention relates to a technique for operation on a computer for developing the knowledge base for ultimately providing very fast and cost-efficient fault diagnosis systems. The present technique uses an effective hierarchy of rules where at a... | 04/21/1992 |
| 5107500 | Diagnostic expert system A diagnostic expert system is set up with a first diagnostic subsystem based on a maintenance technician's knowledge and a second diagnostic subsystem based on a design engineer's knowledge. If a fault cannot be located under the first diagnostic subsyste... | 04/21/1992 |
| 5107499 | Arrangement for automated troubleshooting using selective advice and a learning knowledge base Troubleshooting expert systems are generally embodied in software for the purpose of solving difficult problems in some narrow domain of expertise. The prior art describes certain mechanics for developing or generating rules. That process is commonly know... | 04/21/1992 |
| 5090014 | Identifying likely failure points in a digital data processing system An expert system for determining the likelihood of failure of a unit in a computer system. The operating system of the computer system maintains a log of the errors occurring for each unit in the computer system. If a predetermined number of errors have b... | 02/18/1992 |
| 5084876 | Method and apparatus for testing digital circuits Means are provided which aid in generating programs for testing digital modules. Formal hierarchical descriptions (e.g. in Prolog) of the module without and with a defined fault are stored in a storage device comprising two stores backed up by a submodule... | 01/28/1992 |
| 4985857 | Method and apparatus for diagnosing machines A general purpose expert system architecture for diagnosing faults in any one of a plurality of machines includes a machine information database containing information on characteristics of various components of the machines to be diagnosed and a sensory ... | 01/15/1991 |
| 4972453 | Autonomous expert system for directly maintaining remote telephone switching systems An autonomous expert system for directly maintaining remote computer systems by directly accessing the remote computer systems, diagnosing, and clearing fault conditions on those computer systems. The expert system performs those functions by first access... | 11/20/1990 |
| 4967337 | Automated diagnostic system Artificial intelligence diagnostic expert system software is used to interrogate and monitor etcher machine state by directly accessing vital hardware/process sensors. Sensor values and `recipe` variables are analyzed to determine cause of failures and re... | 10/30/1990 |
