Patents by Inventor Juri V. Jatskevich

Juri V. Jatskevich 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).

  • Publication number: 20100017179
    Abstract: A method and apparatus are presented to facilitate simulation of complex systems on multiple computing devices. Model authors can specify state-related information to be exported for viewing or access by other applications and models. Subsystem models may be written to enable connection with other subsystem models via controlled interfaces, such as by defining state-related information for export and providing for a particular use of data imported from other models to which a subsystem model is connected. In some embodiments, a consistent distributed simulation API enables cross-platform, multi-device simulation of complex systems, wherein the proprietor of each subsystem simulation can keep its implementation secret but accessible to others.
    Type: Application
    Filed: December 10, 2008
    Publication date: January 21, 2010
    Inventors: Oleg Wasynczuk, Charles E. Lucas, Juri V. Jatskevich
  • Publication number: 20090164200
    Abstract: A method and apparatus are presented to facilitate simulation of complex systems on multiple computing devices. Model authors can specify state-related information to be exported for viewing or access by other applications and models. Subsystem models may be written to enable connection with other subsystem models via controlled interfaces, such as by defining state-related information for export and providing for a particular use of data imported from other models to which a subsystem model is connected. In some embodiments, a consistent distributed simulation API enables cross-platform, multi-device simulation of complex systems, wherein the proprietor of each subsystem simulation can keep its implementation secret but accessible to others.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 25, 2009
    Inventors: Oleg Wasynczuk, Charles E. Lucas, Eric A. Walters, Juri V. Jatskevich
  • Patent number: 7490029
    Abstract: A method and apparatus are presented to facilitate simulation of complex systems on multiple computing devices. Model authors can specify state-related information to be exported for viewing or access by other applications and models. Subsystem models may be written to enable connection with other subsystem models via controlled interfaces, such as by defining state-related information for export and providing for a particular use of data imported from other models to which a subsystem model is connected. In some embodiments, a consistent distributed simulation API enables cross-platform, multi-device simulation of complex systems, wherein the proprietor of each subsystem simulation can keep its implementation secret but accessible to others.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: February 10, 2009
    Assignee: P.C. Krause & Associates, Inc.
    Inventors: Oleg Wasynczuk, Charles E. Lucas, Eric A. Walters, Juri V. Jatskevich
  • Publication number: 20090012770
    Abstract: A system, method, and apparatus select state variables for, build state equations of, and simulate time-domain operation of an electronic circuit. The circuit is modeled with three branch types (inductor, resistor, voltage source in series; capacitor, resistor, current source in parallel; and switch), including four pre-defined switch types (unidirectional unlatched, bidirectional unlatched, unidirectional latched, and bidirectional latched). Automated analyses determine efficient state variables based on the currently active circuit topology, and state equations are built and applied. Switching logic determines when switch states change, and state equations for the new topology are either drawn from a cache (if the topology has already been processed) or derived anew. The switch control signals may be combined into a single switching variable, defined as a function of the state output.
    Type: Application
    Filed: April 1, 2008
    Publication date: January 8, 2009
    Inventors: Oleg Wasynczuk, Juri V. Jatskevich
  • Patent number: 7353157
    Abstract: A system, method, and apparatus select state variables for, build state equations of, and simulate time-domain operation of an electronic circuit. The circuit is modeled with three branch types (inductor, resistor, voltage source in series; capacitor, resistor, current source in parallel; and switch), including four pre-defined switch types (unidirectional unlatched, bidirectional unlatched, unidirectional latched, and bidirectional latched). Automated analyses determine efficient state variables based on the currently active circuit topology, and state equations are built and applied. Switching logic determines when switch states change, and state equations for the new topology are either drawn from a cache (if the topology has already been processed) or derived anew. The switch control signals may be combined into a single switching variable, defined as a function of the state output.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: April 1, 2008
    Assignee: P. C. Krause & Associates, Inc.
    Inventors: Oleg Wasynczuk, Juri V. Jatskevich
  • Publication number: 20020183990
    Abstract: A system, method, and apparatus select state variables for, build state equations of, and simulate time-domain operation of an electronic circuit. The circuit is modeled with three branch types (inductor, resistor, voltage source in series; capacitor, resistor, current source in parallel; and switch), including four pre-defined switch types (unidirectional unlatched, bidirectional unlatched, unidirectional latched, and bidirectional latched). Automated analyses determine efficient state variables based on the currently active circuit topology, and state equations are built and applied. Switching logic determines when switch states change, and state equations for the new topology are either drawn from a cache (if the topology has already been processed) or derived anew. The switch control signals may be combined into a single switching variable, defined as a function of the state output.
    Type: Application
    Filed: January 11, 2002
    Publication date: December 5, 2002
    Inventors: Oleg Wasynczuk, Juri V. Jatskevich
  • Publication number: 20020052725
    Abstract: A method and apparatus are presented to facilitate simulation of complex systems on multiple computing devices. Model authors can specify state-related information to be exported for viewing or access by other applications and models. Subsystem models may be written to enable connection with other subsystem models via controlled interfaces, such as by defining state-related information for export and providing for a particular use of data imported from other models to which a subsystem model is connected. In some embodiments, a consistent distributed simulation API enables cross-platform, multi-device simulation of complex systems, wherein the proprietor of each subsystem simulation can keep its implementation secret but accessible to others.
    Type: Application
    Filed: June 19, 2001
    Publication date: May 2, 2002
    Inventors: Oleg Wasynczuk, Charles E. Lucas, Eric A. Walters, Juri V. Jatskevich, Steven F. Glover