Patents by Inventor Theodore Y. Tso

Theodore Y. Tso 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).

  • Providing a computing system with real-time capabilities
    Patent number: 8230446
    Abstract: A computing system is provided with real-time capabilities so that the system is capable of running applications such that one or more real-time criteria are satisfied. An interrupt architecture of the computing system is disabled. The interrupt architecture generates interrupts sent to a firmware of the computing system in response to events. A different architecture is substituted within the computing system for the interrupt architecture. The different architecture is responsive to the events without violating the real-time criteria. In response to the events occurring, the different architecture causes one or more corrective actions to be performed.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Paul E. McKenney, Claudia Salzberg, Rene Vandenbroeck, John K. Whetzel, Peter H. Reynolds, Albert A. Asselin, Keith Mannthey, Torez Smith, Jeffrey Franke, Theodore Y. Tso
  • Use of a UUID as a time epoch to determine if the system clock has been reset backwards in time
    Patent number: 7743271
    Abstract: A method, system and program are provided for determining if a system clock has been reset backwards in time by using a randomly generated set of bytes (such as a randomly generated or type 4 UUID) as a time epoch. By generating a time epoch at boot time and whenever the system clock is set back in time, an application can compare the time epoch value at an earlier point in its execution, with the current time epoch. If the time epoch values are different, the application will know that the system clock has been set back in time.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: June 22, 2010
    Assignee: International Business Machines Corporation
    Inventor: Theodore Y. Tso
  • Providing a computing system with real-time capabilities
    Publication number: 20090138896
    Abstract: A computing system is provided with real-time capabilities so that the system is capable of running applications such that one or more real-time criteria are satisfied. An interrupt architecture of the computing system is disabled. The interrupt architecture generates interrupts sent to a firmware of the computing system in response to events. A different architecture is substituted within the computing system for the interrupt architecture. The different architecture is responsive to the events without violating the real-time criteria. In response to the events occurring, the different architecture causes one or more corrective actions to be performed.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 28, 2009
    Inventors: Paul E. McKenney, Claudia Salzberg, Rene Vandenbroeck, John K. Whetzel, Peter H. Reynolds, Albert A. Asselin, Keith Mannthey, Torez Smith, Jeffrey Franke, Theodore Y. Tso
  • Use of a UUID as a Time Epoch to Determine if the System Clock Has Been Reset Backwards in Time
    Publication number: 20080209249
    Abstract: A method, system and program are provided for determining if a system clock has been reset backwards in time by using a randomly generated set of bytes (such as a randomly generated or type 4 UUID) as a time epoch. By generating a time epoch at boot time and whenever the system clock is set back in time, an application can compare the time epoch value at an earlier point in its execution, with the current time epoch. If the time epoch values are different, the application will know that the system clock has been set back in time.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 28, 2008
    Inventor: Theodore Y. Tso