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. 15, 2020
Filed:
Dec. 18, 2018
Mentor Graphics Corporation, Wilsonville, OR (US);
Sanjay Pillay, Austin, TX (US);
Arun Kumar Gogineni, Cedar Park, TX (US);
Srikanth Rengarajan, Austin, TX (US);
Mentor Graphics Corporation, Wilsonville, OR (US);
Abstract
A computing system implementing a functional safety validation tool to simulate a circuit design having a digital portion and an analog portion, and inject a fault into the digital portion of a simulated circuit design, which propagates towards alarm logic configured to detect the injected fault. When the injected fault propagates to a boundary between the digital portion and the analog portion, the functional safety validation tool can perform a parallel simulation of the analog portion, which propagates the injected fault from the boundary through the analog portion to an output. The functional safety validation tool can determine whether the analog portion of the circuit design suppresses the injected fault based on a value at the output. The functional safety validation tool can generate a fault coverage presentation identifying a diagnostic coverage of the alarm logic based on whether the injected fault was suppressed.