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:
May. 26, 2020
Filed:
Oct. 30, 2017
Applicant:
Avery Design Systems, Inc., Tewksbury, MA (US);
Inventors:
Kai-Hui Chang, North Andover, MA (US);
Hong-zu Chou, Taipei, TW;
Assignee:
Avery Design Systems, Inc., Tewksbury, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01); H03K 19/003 (2006.01); H03K 19/173 (2006.01); G06F 30/33 (2020.01);
U.S. Cl.
CPC ...
H03K 19/003 (2013.01); H03K 19/1737 (2013.01); G06F 30/33 (2020.01);
Abstract
A computer executable tool analyzes Boolean logic in a gate-level netlist responsible for generating false Xs due to X-pessimism in logic simulation to produce a compact fix that corrects the X-pessimism problem. The fix restores logic simulation value from X to hardware-accurate non-X value and solves X-pessimism issues in logic simulation.