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:
Jun. 18, 2013
Filed:
Dec. 09, 2009
Applicants:
Ruifeng Guo, Portland, OR (US);
Wu-tung Cheng, Lake Oswego, OR (US);
Kun-han Tsai, Lake Oswego, OR (US);
Inventors:
Ruifeng Guo, Portland, OR (US);
Wu-Tung Cheng, Lake Oswego, OR (US);
Kun-Han Tsai, Lake Oswego, OR (US);
Assignee:
Mentor Graphics Corporation, Wilsonville, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
Speed-path debug techniques based on at-speed scan test patterns. Potential speed paths are identified based upon detected at-speed scan pattern failures and unknown X-value simulation. When the number of identified speed paths is large, the suspect speed paths are ranked.