Multiple aspect operator interface for displaying fault diagnostics results in intelligent process control systems
Patent 5420977 Issued on May 30, 1995. Estimated Expiration Date: 
October 12, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 12, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for generating and displaying tree structures in a limited display area Technique for drawing directed graphs Critical path analyzer with path context window Patent #: 4970664 InventorsAssigneeApplicationNo. 135313 filed on 10/12/1993ExaminersPrimary: Zimmerman, MarkAttorney, Agent or FirmForeign Patent References
International ClassG06F 019/00AbstractIn a fault diagnostic system, an operator interface simultaneously displays an operations hierarchy and a components hierarchy in two separate windows. The display system is used with a model-based diagnostic system that monitors operational parameters of an industrial process. The diagnostic system identifies possible failure source components in the industrial process and the display system uses these diagnostics to display the most interesting portions of the operations hierarchy and the components hierarchy. The most interesting node, to be displayed with its subtree, is defined as the node at the lowest level of the hierarchy that is both a fault source and that has more children than than other fault sources at that level.Other References
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