Patents by Inventor Christopher K. Wojahn

Christopher K. Wojahn 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).

  • Processing device with self-scrubbing logic
    Patent number: 9792184
    Abstract: An apparatus includes a processing unit including a configuration memory and self-scrubber logic coupled to read the configuration memory to detect compromised data stored in the configuration memory. The apparatus also includes a watchdog unit external to the processing unit and coupled to the self-scrubber logic to detect a failure in the self-scrubber logic. The watchdog unit is coupled to the processing unit to selectively reset the processing unit in response to detecting the failure in the self-scrubber logic. The apparatus also includes an external memory external to the processing unit and coupled to send configuration data to the configuration memory in response to a data feed signal outputted by the self-scrubber logic.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: October 17, 2017
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Christopher K. Wojahn
  • PROCESSING DEVICE WITH SELF-SCRUBBING LOGIC
    Publication number: 20160188402
    Abstract: An apparatus includes a processing unit including a configuration memory and self-scrubber logic coupled to read the configuration memory to detect compromised data stored in the configuration memory. The apparatus also includes a watchdog unit external to the processing unit and coupled to the self-scrubber logic to detect a failure in the self-scrubber logic. The watchdog unit is coupled to the processing unit to selectively reset the processing unit in response to detecting the failure in the self-scrubber logic. The apparatus also includes an external memory external to the processing unit and coupled to send configuration data to the configuration memory in response to a data feed signal outputted by the self-scrubber logic.
    Type: Application
    Filed: January 18, 2016
    Publication date: June 30, 2016
    Inventor: Christopher K. Wojahn
  • Processing device with self-scrubbing logic
    Patent number: 9274895
    Abstract: An apparatus includes a processing unit including a configuration memory and self-scrubber logic coupled to read the configuration memory to detect compromised data stored in the configuration memory. The apparatus also includes a watchdog unit external to the processing unit and coupled to the self-scrubber logic to detect a failure in the self-scrubber logic. The watchdog unit is coupled to the processing unit to selectively reset the processing unit in response to detecting the failure in the self-scrubber logic. The apparatus also includes an external memory external to the processing unit and coupled to send configuration data to the configuration memory in response to a data feed signal outputted by the self-scrubber logic.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: March 1, 2016
    Assignee: Sandia Corporation
    Inventor: Christopher K. Wojahn