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. 12, 2011
Filed:
Mar. 23, 2007
Applicants:
Garry R. Elder, Rockwall, TX (US);
Ramanujam Thodur, Bangalore, IN;
Inventors:
Garry R. Elder, Rockwall, TX (US);
Ramanujam Thodur, Bangalore, IN;
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Apparatus and method to scramble data prior to placing it on a bus or in memory uses embedded hardware keys for encryption/decryption. The hardware keys may be used in addition to software encryption. Different hardware keys may be used to process most significant bits and least significant bits of a data word. Different hardware keys may be used to process messages from/to different channels. The hardware key may be comprise a series of fixed logic cells.