Patents by Inventor Rohith Prasad Challa

Rohith Prasad Challa 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: 11861050
    Abstract: The present disclosure presents various systems and methods for implementing a physical unclonable function device. One such method comprises providing an integrated circuit having a plurality of set/reset flip flop logic circuits, wherein each of the set/reset flip flop logic circuits enters a metastable state for a particular input sequence. The method includes varying circuit parameters for each of the plurality of set/reset flip flop logic circuits to account for manufacturing variations in the set/reset flip flop logic circuits and enable generating a stable but random output in response to the particular input sequence. Thus, by applying the particular input sequence to the integrated circuit, a unique identifier for the integrated circuit can be derived from an output response of the plurality of set/reset flip flop logic circuits.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: January 2, 2024
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Srinivas Katkoori, Rohith Prasad Challa, Sheikh Ariful Islam
  • Publication number: 20230125166
    Abstract: The present disclosure presents various systems and methods for implementing a physical unclonable function device. One such method comprises providing an integrated circuit having a plurality of set/reset flip flop logic circuits, wherein each of the set/reset flip flop logic circuits enters a metastable state for a particular input sequence. The method includes varying circuit parameters for each of the plurality of set/reset flip flop logic circuits to account for manufacturing variations in the set/reset flip flop logic circuits and enable generating a stable but random output in response to the particular input sequence. Thus, by applying the particular input sequence to the integrated circuit, a unique identifier for the integrated circuit can be derived from an output response of the plurality of set/reset flip flop logic circuits.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Inventors: Srinivas KATKOORI, Rohith Prasad CHALLA, Sheikh Ariful ISLAM
  • Patent number: 11537755
    Abstract: The present disclosure presents various systems and methods for implementing a physical unclonable function device. One such method comprises providing an integrated circuit having a plurality of set/reset flip flop logic circuits, wherein each of the set/reset flip flop logic circuits enters a metastable state for a particular input sequence. The method includes varying circuit parameters for each of the plurality of set/reset flip flop logic circuits to account for manufacturing variations in the set/reset flip flop logic circuits and enable generating a stable but random output in response to the particular input sequence. Thus, by applying the particular input sequence to the integrated circuit, a unique identifier for the integrated circuit can be derived from an output response of the plurality of set/reset flip flop logic circuits.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: December 27, 2022
    Assignee: University of South Florida
    Inventors: Srinivas Katkoori, Rohith Prasad Challa, Sheikh Ariful Islam