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:
Mar. 25, 2014
Filed:
Sep. 21, 2011
Applicants:
Joseph R. M. Zbiciak, Arlington, TX (US);
Amitabh Menon, Lewisville, TX (US);
Inventors:
Joseph R. M. Zbiciak, Arlington, TX (US);
Amitabh Menon, Lewisville, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A memory management and protection system that incorporates device security features that support a distributed, shared memory system. The concept of secure regions of memory and secure code execution is supported, and a mechanism is provided to extend a chain of trust from a known, fixed secure boot ROM to the actual secure code execution. Furthermore, the system keeps a secure address threshold that is only programmable by a secure supervisor, and will only allow secure access requests that are above this threshold.