Patents by Inventor Naoko Pia Sanda

Naoko Pia Sanda 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: 8296739
    Abstract: Techniques are provided for determining consequences of an injected fault on a system running a given application program or operating system, in order to measure the software impact of a hardware soft error on the application program/operating system. The application program software is emulated instruction-by-instruction, where source operands are randomly modified before an instruction is executed, and destination operands are randomly modified after an instruction is executed, in order to mimic hardware soft errors. In addition, a program counter is randomly modified after execution of a branch instruction. The resulting consequences of such modifications are monitored such that a fault of an instruction being executed is modeled in order to determine a soft error rate (SER) for a software application program or operating system.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: October 23, 2012
    Assignee: International Business Machines Corporation
    Inventors: Ronald Nick Kalla, Jeffrey William Kellington, Naoko Pia Sanda, Todd Alan Venton
  • Patent number: 8073668
    Abstract: A test system tests a full system integrated circuit (IC) model that includes a device under test (DUT) IC model and a support IC model. A test manager information handling system (IHS) maps the full system IC model on a hardware accelerator simulator via an interface bus. The hardware accelerator simulator thus emulates the full system IC model. Of all possible fault injection points in the model, the test manager IHS selects a subset of those injection points for fault injection via a statistical sampling method in one embodiment. In response to commands from the test manager IHS, the simulator serially injects faults into the selected fault injection points. The test manager IHS stores results for respective fault injections at the selected injection points. If a machine checkstop or silent data corruption error occurs as a result of an injected fault, the DUT IC model may return to a stored checkpoint and resume operation from the stored checkpoint.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: December 6, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jeffrey William Kellington, Prabhakar Nandavar Kudva, Naoko Pia Sanda, John Andrew Schumann
  • Publication number: 20090249301
    Abstract: Techniques are provided for determining consequences of an injected fault on a system running a given application program or operating system, in order to measure the software impact of a hardware soft error on the application program/operating system. The application program software is emulated instruction-by-instruction, where source operands are randomly modified before an instruction is executed, and destination operands are randomly modified after an instruction is executed, in order to mimic hardware soft errors. In addition, a program counter is randomly modified after execution of a branch instruction. The resulting consequences of such modifications are monitored such that a fault of an instruction being executed is modeled in order to determine a soft error rate (SER) for a software application program or operating system.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ronald Nick Kalla, Jeffrey William Kellington, Naoko Pia Sanda, Todd Alan Venton
  • Publication number: 20090193296
    Abstract: A test system tests a full system integrated circuit (IC) model that includes a device under test (DUT) IC model and a support IC model. A test manager information handling system (IHS) maps the full system IC model on a hardware accelerator simulator via an interface bus. The hardware accelerator simulator thus emulates the full system IC model. Of all possible fault injection points in the model, the test manager IHS selects a subset of those injection points for fault injection via a statistical sampling method in one embodiment. In response to commands from the test manager IHS, the simulator serially injects faults into the selected fault injection points. The test manager IHS stores results for respective fault injections at the selected injection points. If a machine checkstop or silent data corruption error occurs as a result of an injected fault, the DUT IC model may return to a stored checkpoint and resume operation from the stored checkpoint.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 30, 2009
    Applicant: IBM Corporation
    Inventors: Jeffrey William Kellington, Prabhakar Nandavar Kudva, Naoko Pia Sanda, John Andrew Schumann
  • Patent number: 7084660
    Abstract: A method and system are provided for accelerated detection of soft error rates (SER) in integrated circuits (IC's) due to transient particle emission. An integrated circuit is packaged for accelerated transient particle emission by doping the underfill thereof with a transient-particle-emitting material having a predetermined emission rate. The emission rate is substantially constant over a predetermined period of time for testing. Accelerated transient-particle-emission testing is performed on the integrated circuit. Single-event upsets due to soft errors are detected, and a quantitative measurement of SER is determined.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: August 1, 2006
    Assignee: International Business Machines Corporation
    Inventors: Jerry D. Ackaret, Richard B. Bhend, David F. Heidel, Naoko Pia Sanda, Scott B. Swaney, Jane Jones, legal representative, Theodore H. Zabel, deceased
  • Patent number: 6943578
    Abstract: A method, system and apparatus are provided for operating a Picosecond Imaging Circuit Analysis (PICA)/high current source system include applying pulses from a high current pulse source to a Device Under Test (DUT). A photosensor detects photon emissions from the DUT. Signals from the photosensor are used to map photon emissions from the DUT. Data processing means relate the photon emissions to specific features of the DUT.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 13, 2005
    Assignee: International Business Machines Corporation
    Inventors: Naoko Pia Sanda, Steven H. Voldman, Alan J. Weger