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.

Date of Patent:
May. 02, 2023

Filed:

Oct. 15, 2021
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Sunanda Manjunath, Munich, DE;

Jens Rosenbusch, Munich, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/10 (2006.01); G06F 11/16 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1004 (2013.01); G06F 11/0772 (2013.01); G06F 11/1068 (2013.01); G06F 11/167 (2013.01);
Abstract

Systems, methods, and circuitries are provided for checking integrity of code received from an external memory. In one example, a system includes a non-volatile memory and a controller. The non-volatile memory includes a first partition configured to store first data corresponding to program code and a second partition configured to store second data corresponding to a copy of the first data. The controller that includes a processor and comparator circuitry. The comparator circuitry is configured to receive a portion of the first data and a corresponding portion of the second data, compare the portion of the first data to the portion of the second data, when the portion of the first data matches the portion of the second data, provide the portion of the first data to the processor, and when the portion of the first data does not match the portion of the second data, generate an alarm signal.


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