The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2018
Filed:
Jan. 25, 2016
Raytheon Company, Waltham, MA (US);
Matthew C. Areno, Round Rock, TX (US);
John Hoffman, Fairview, TX (US);
William T. Jennings, Plano, TX (US);
Raytheon Company, Waltham, MA (US);
Abstract
This disclosure provides for implementing a firmware security interface within a field-programmable gate array (FPGA) for communicating between secure and non-secure environments executable within the FPGA. A security monitor is implemented within the programmable logic of the FPGA as a soft core processor and the firmware security interface modifies one or more functions of the security monitor. The modifications to the security monitor include establishing a timer 'heartbeat' within the FPGA to ensure that the FPGA invokes a secure environment and raising an alarm should the FPGA fail to invoke such environment.