Patents by Inventor David Varn

David Varn 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).

  • Apparatus and method for a programmable security processor
    Publication number: 20060206726
    Abstract: A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.
    Type: Application
    Filed: May 16, 2006
    Publication date: September 14, 2006
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Stephen Wasson, David Varn, John Ralston
  • Apparatus and method for a programmable security processor
    Publication number: 20060206727
    Abstract: A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.
    Type: Application
    Filed: May 16, 2006
    Publication date: September 14, 2006
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Stephen Wasson, David Varn, John Ralston