Patents by Inventor Daniel Cory Rohrer

Daniel Cory Rohrer 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: 7474312
    Abstract: In one embodiment of the present invention, a GPU contains an authentication module at the front end, and a memory security engine and graphic memory interface at the backend. In one embodiment of the present invention, the memory security engine provides a privilege table. The programmable privilege table maps memory address ranges, and user IDs to privileges for accessing the memory address ranges. In one embodiment of the present invention, the memory security engine receives a memory access command along with an associated authenticated user ID. In one embodiment of the present invention, the memory security engine checks the authenticated user ID and address range against the privilege table. In one embodiment of the present invention, if the table indicates that the user has authorization for the particular read or write transaction to the graphic memory, the instruction is executed by the graphic memory interface.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: January 6, 2009
    Assignee: Nvidia Corporation
    Inventors: Daniel Cory Rohrer, Paolo Enrique Sabella