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:
Jul. 12, 2016
Filed:
Apr. 18, 2014
Qualcomm Incorporated, San Diego, CA (US);
Can Erkin Acar, San Diego, CA (US);
Erich James Plondke, Austin, TX (US);
Robert J. Turner, San Diego, CA (US);
Billy B. Brumley, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Techniques for protecting contents of a stack associated with a processor are provided. The techniques include a method including receiving a store instruction from a software program being executed by the processor, the store instruction including control information associated with a subroutine, altering the control information to generate secured control information responsive to receiving the store instruction from the software program, storing the secured control information on the stack, receiving a load instruction from the software program; and responsive to receiving the load instruction from the software program, loading the secured control information from the stack, altering the secured control information to recover the control information, and returning the control information to the software program.