Patents by Inventor Thiru Gnanasabapathy

Thiru Gnanasabapathy 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).

  • System and method for code and data security in a semiconductor device
    Patent number: 7444476
    Abstract: A system and method for preventing unauthorized access to the software of a semiconductor device is provided. The semiconductor device of the present invention includes a memory buffer in the data path between the processor core of the device and the memory of the device. A password for providing full communication in the data path is stored in a defined location in the memory. Upon reading the memory location, the password is provided to a code security module. The password provided to the code security module is compared to a data string provided by the user. If the password and the data string match, the password data path is open for communication between the memory and the processor core. If the password and data string do not match, the password data path is closed to communication between the memory and the processor core.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: October 28, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Thiru Gnanasabapathy, David P. Foley
  • System and method for code and data security in a semiconductor device
    Publication number: 20030023871
    Abstract: A system and method for preventing unauthorized access to the software of a semiconductor device is provided. The semiconductor device of the present invention includes a memory buffer in the data path between the processor core of the device and the memory of the device. A password for providing full communication in the data path is stored in a defined location in the memory. Upon reading the memory location, the password is provided to a code security module. The password provided to the code security module is compared to a data string provided by the user. If the password and the data string match, the password data path is open for communication between the memory and the processor core. If the password and data string do not match, the password data path is closed to communication between the memory and the processor core.
    Type: Application
    Filed: May 29, 2002
    Publication date: January 30, 2003
    Inventors: Thiru Gnanasabapathy, David P. Foley