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:
Sep. 11, 2018
Filed:
Aug. 15, 2013
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventor:
Seiji Sawada, Tokyo, JP;
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/62 (2013.01); G06F 3/06 (2006.01); G06F 12/14 (2006.01); G11C 16/04 (2006.01); G06F 21/85 (2013.01); G11C 16/06 (2006.01);
U.S. Cl.
CPC ...
G06F 21/6218 (2013.01); G06F 3/0623 (2013.01); G06F 3/0638 (2013.01); G06F 3/0683 (2013.01); G06F 12/1408 (2013.01); G06F 21/85 (2013.01); G11C 16/0475 (2013.01); G11C 16/06 (2013.01);
Abstract
A scramble unit subjects data to be written into twin cells in a first storage unit to scramble processing with the use of scramble data. A write unit writes write data subjected to the scramble processing into the twin cells in the first storage unit. A write unit writes scramble data into a memory cell in a second storage unit. A descramble unit subjects the data read from the first storage unit to descramble processing with the use of scramble data read from the second storage unit.