Patents by Inventor Aleksandar Milenkovic

Aleksandar Milenkovic 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).

  • Systems and methods for improving radiation tolerance of memory
    Patent number: 11762563
    Abstract: A system for improving radiation tolerance of memory senses an amount of radiation exposure and, based on the sensed amount of radiation exposure, determines whether to perform one or more techniques for mitigating the effects of the radiation exposure. As an example, the system may perform a data refresh operation by re-writing data that has been corrupted by radiation, or the system may adjust the reference voltage used to read memory cells. In another example, the system may perform a fault repair operation by re-programming cells that have erroneously transitioned from a program state to an erase state. The system may selectively perform different radiation-mitigation techniques in a tiered approach based on the sensed amount of radiation in order to limit the adverse effects of the more invasive techniques.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: September 19, 2023
    Assignee: Board of Trustees of the University of Alabama, for and on behalf of the University of Alabama in Huntsville
    Inventors: Biswajit Ray, Aleksandar Milenkovic
  • Systems and methods for improving radiation tolerance of three-dimensional flash memory
    Patent number: 11728004
    Abstract: A system for improving radiation tolerance of memory senses an amount of radiation exposure and, based on the sensed amount of radiation exposure, determines whether to perform one or more techniques for mitigating the effects of the radiation exposure. As an example, the system may perform a data refresh operation by re-writing data that has been corrupted by radiation, or the system may adjust the reference voltage used to read memory cells. In another example, the system may perform a fault repair operation by re-programming cells that have erroneously transitioned from a program state to an erase state. The system may selectively perform different radiation-mitigation techniques in a tiered approach based on the sensed amount of radiation in order to limit the adverse effects of the more invasive techniques.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: August 15, 2023
    Assignee: Board of Trustees of the University of Alabama
    Inventors: Biswajit Ray, Aleksandar Milenkovic
  • Data and instruction address compression
    Patent number: 7496902
    Abstract: An improved method, apparatus, and computer instructions for compressing trace data. An instruction stream is identified, and in response to identifying the instruction stream, the instruction addresses in the instruction stream are replaced with a stream identifier to form compressed trace data. Data addresses may be related to instructions in the instruction stream to generate a data trace component in the compressed trace data.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: February 24, 2009
    Assignee: International Business Machines Corporation
    Inventors: Frank Eliot Levine, Aleksandar Milenkovic, Milena Milenkovic
  • Data and instruction address compression
    Publication number: 20060212761
    Abstract: An improved method, apparatus, and computer instructions for compressing trace data. An instruction stream is identified, and in response to identifying the instruction stream, the instruction addresses in the instruction stream are replaced with a stream identifier to form compressed trace data. Data addresses may be related to instructions in the instruction stream to generate a data trace component in the compressed trace data.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 21, 2006
    Inventors: Frank Levine, Aleksandar Milenkovic, Milena Milenkovic