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:
Dec. 01, 2020
Filed:
Nov. 15, 2019
Applicant:
Avery Design Systems, Inc., Tewksbury, MA (US);
Inventor:
Kai-Hui Chang, Andover, MA (US);
Assignee:
Avery Design Systems, Inc., Tewksbury, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 30/337 (2020.01); G01R 31/3183 (2006.01); G06F 30/3308 (2020.01); G06F 119/02 (2020.01);
U.S. Cl.
CPC ...
G01R 31/318357 (2013.01); G06F 30/337 (2020.01); G06F 30/3308 (2020.01); G06F 2119/02 (2020.01);
Abstract
A computer executable tool analyzes Boolean logic in a gate-level netlist with simulated values and efficiently determines whether a subset of the netlist produces real Xs or not. If whether the netlist produces real Xs or not cannot be quickly determined, further formal analysis needs to be performed, and this step can be time-consuming. By quickly determining whether real Xs are produced, the use of time-consuming formal methods can be reduced, thus reducing X-pessimism analysis time.