Patents by Inventor Sreekala Anandavally

Sreekala Anandavally 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: 11501047
    Abstract: A non-limiting example of a computer-implemented method for error injection includes executing a pre-silicon operation on a simulated chip verifying that a plurality of latches from a timing simulation set error checkers when run against a manufacturing test suite in order to generate a cross-reference file containing latch entries in a table. It executes a first post-silicon operation on a hardware chip based on the simulated chip to determine empirically that timing latches from logic built-in self tests (“LBIST”) trigger the same error checkers set by the plurality of latches verified in the simulated chip. The method updates the cross-reference file based on the results of the determination. The method executes a second post-silicon operation on the hardware chip to improve chip frequency by working around functional checkers using the cross-reference file and updating the cross-reference file based on the results of the improving.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 15, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sean Michael Carey, Richard Frank Rizzolo, Bodo Hoppe, Divya Kumudprakash Joshi, Paul Jacob Logsdon, Sreekala Anandavally, William Rurik
  • Publication number: 20210157963
    Abstract: A non-limiting example of a computer-implemented method for error injection includes executing a pre-silicon operation on a simulated chip verifying that a plurality of latches from a timing simulation set error checkers when run against a manufacturing test suite in order to generate a cross-reference file containing latch entries in a table. It executes a first post-silicon operation on a hardware chip based on the simulated chip to determine empirically that timing latches from logic built-in self tests (“LBIST”) trigger the same error checkers set by the plurality of latches verified in the simulated chip. The method updates the cross-reference file based on the results of the determination. The method executes a second post-silicon operation on the hardware chip to improve chip frequency by working around functional checkers using the cross-reference file and updating the cross-reference file based on the results of the improving.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 27, 2021
    Inventors: Sean Michael Carey, Richard Frank Rizzolo, Bodo Hoppe, Divya Kumudprakash Joshi, Paul Jacob Logsdon, Sreekala Anandavally, WILLIAM RURIK
  • Patent number: 8984335
    Abstract: Embodiments of the disclosure are directed to an apparatus that comprises a first core susceptible to an error condition, and a second core configured to perform a diagnostic on the first core to identify a cause of the error condition and an action to remedy the error condition in order to recover the first core.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Sreekala Anandavally, Anand Haridass, Gerard M. Salem, Diyanesh B. C. Vidyapoornachary
  • Patent number: 8977895
    Abstract: Embodiments of the disclosure are directed to an apparatus that comprises a first core susceptible to an error condition, and a second core configured to perform a diagnostic on the first core to identify a cause of the error condition and an action to remedy the error condition in order to recover the first core.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: March 10, 2015
    Assignee: International Business Machines Corporation
    Inventors: Sreekala Anandavally, Anand Haridass, Gerard M. Salem, Diyanesh B. C. Vidyapoornachary
  • Publication number: 20140108859
    Abstract: Embodiments of the disclosure are directed to an apparatus that comprises a first core susceptible to an error condition, and a second core configured to perform a diagnostic on the first core to identify a cause of the error condition and an action to remedy the error condition in order to recover the first core.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 17, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sreekala Anandavally, Anand Haridass, Gerard M. Salem, Diyanesh B.C. Vidyapoornachary
  • Publication number: 20140025991
    Abstract: Embodiments of the disclosure are directed to an apparatus that comprises a first core susceptible to an error condition, and a second core configured to perform a diagnostic on the first core to identify a cause of the error condition and an action to remedy the error condition in order to recover the first core.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Applicant: International Business Machines Corporation
    Inventors: Sreekala Anandavally, Anand Haridass, Gerard M. Salem, Diyanesh B.C. Vidyapoornachary