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:
Aug. 26, 2025
Filed:
Mar. 28, 2023
Nxp Usa, Inc., Austin, TX (US);
Iani Bogdan Almajan, Bragadiru, RO;
Julien Olivain, Grasse, FR;
Joseph Charles Circello, Phoenix, AZ (US);
NXP USA, Inc., Austin, TX (US);
Abstract
Self-checking central processing unit (CPU) systems and methods are provided, in which the self-checking CPU systems include a core monitor that performs checking functions to monitor and verify the executions of a primary CPU. The primary CPU has a primary processor pipeline, and the core monitor has a checker pipeline that is parallel to the primary processor pipeline. The core monitor performs checking functions during each stage of the primary processor pipeline, where the type of each checking function is based on a corresponding type of function being performed by the primary CPU. For example, the core monitor may perform parity checking for data transfers and logical operations performed by the primary CPU, and residue checking for arithmetic instruction execution logic performed by the primary CPU.