Patents by Inventor Simon Lowenfeld

Simon Lowenfeld has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5984504
    Abstract: A safety or protection system includes a plurality of divisions of first signals; a plurality of safety or protection subsystems each of which receives a corresponding one of the divisions of first signals and produces a corresponding plurality of second signals therefrom; and a reflective memory subsystem for communicating the second signals between the safety or protection subsystems.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: November 16, 1999
    Assignee: Westinghouse Electric Company LLC
    Inventors: James P. Doyle, Robert W. Thompson, Jr., Simon Lowenfeld, Jerzy Gutman
  • Patent number: 5412756
    Abstract: An artificial intelligence software shell for plant operation simulation includes a blackboard module including a database having objects representing plant elements and concepts. A rule-based knowledge source module and a case-based knowledge source module, in communication with the blackboard module, operate on specific predefined blackboard objects. A user interface module, in communication with the blackboard module, enables a user to view blackboard status information. A control module, in communication with the blackboard module and the knowledge source modules, receives input data and controls operation of the knowledge source modules in accordance with a predetermined knowledge source priority scheme.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: May 2, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Douglas A. Bauman, Simon Lowenfeld, Brian A. Schultz, Robert W. Thompson, Jr.
  • Patent number: 5402524
    Abstract: An artificial intelligence software shell for plant operation simulation includes a blackboard module including a database having objects representing plant elements and concepts. A rule-based knowledge source module and a case-based knowledge source module, in communication with the blackboard module, operate on specific predefined blackboard objects. The case-based knowledge source module includes cases having past data points on a time scale. Present data is compared with the past data in the cases both on a time scale and on a magnitude scale for determining levels of closeness in time and magnitude. An input data module, in communication with the blackboard module, enables a user to input data to the shell. A control module, in communication with the knowledge source modules and the input data module, receives all input data and controls operation of the knowledge source modules in accordance with a predetermined knowledge source priority scheme.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: March 28, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Douglas A. Bauman, Simon Lowenfeld, Brian A. Schultz, Robert W. Thompson, Jr., Nobuyoshi Wada
  • Patent number: 5402526
    Abstract: An artificial intelligence software shell for plant operation simulation includes a blackboard module including a database having objects representing plant elements and concepts. A rule-based knowledge source module and a case-based knowledge source module, in communication with the blackboard module, operate on specific predefined blackboard objects. An input data module, in communication with the blackboard module, enables a user to input data to the shell. A control module, in communication with the knowledge source modules and the input data module, receives all input data and controls operation of the knowledge source modules in accordance with a predetermined knowledge source interruptibility/priority scheme. The control module including an event detector module having a hash table defined by a chaining algorithm.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: March 28, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Douglas A. Bauman, Simon Lowenfeld, Brian A. Schultz, Robert W. Thompson, Jr., Hatsuhiko Naitoh
  • Patent number: 5398304
    Abstract: An artificial intelligence software shell for plant operation simulation includes a blackboard module including a database having objects representing plant elements and concepts. A rule-based knowledge source module or a case-based knowledge source module, in communication with the blackboard module, operate on specific predefined blackboard objects. An input data module, in communication with the blackboard module, enables a user to input data to the shell. A control module, in communication with the knowledge source modules and the input data module, receives all input data and controls operation of the knowledge source modules in accordance with a predetermined knowledge source priority scheme. The control module including an event detector module having a message evaluator that checks messages for syntax errors before searching a hash table structure in the event detector.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: March 14, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Douglas A. Bauman, Simon Lowenfeld, Brian A. Schultz, Robert W. Thompson, Jr.
  • Patent number: 4642782
    Abstract: Sensor based diagnostic apparatus for performing on-line realtime monitoring of an industrial or other operating system. The diagnostic apparatus has a rule network for propagation of belief leading to one or more possible malfunctions of equipment in the operating system. The propagation of belief is dynamically altered as a function of the operating conditions of the sensors themselves.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: February 10, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: Christian T. Kemper, Simon Lowenfeld, Mark S. Fox