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:
Jan. 12, 2010
Filed:
Sep. 06, 2007
Chung-wah Norris Ip, Fremont, CA (US);
Lawrence Loh, Milpitas, CA (US);
Vigyan Singhal, Fremont, CA (US);
Howard Wong-toi, Albany, CA (US);
Chung-Wah Norris Ip, Fremont, CA (US);
Lawrence Loh, Milpitas, CA (US);
Vigyan Singhal, Fremont, CA (US);
Howard Wong-Toi, Albany, CA (US);
Jasper Design Automation, Inc., Mountain View, CA (US);
Abstract
A counter abstraction tool generates an abstraction model for one or more counters in a circuit design for use with a formal verification system. The tool detects the presence of a counter in a circuit design, identifies one or more special values for the counter, and creates an abstraction for the counter. The tool can automatically perform the abstraction, guide a user in configuring the appropriate abstraction for the counter, or perform a combination of automatic and manual abstraction. The tool may further accommodate related counters.