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:
Apr. 24, 2012
Filed:
Jun. 23, 2009
Applicants:
Eli Arbel, Haifa, IL;
Cindy Eisner, Haifa, IL;
Oleg Rokhlenko, Haifa, IL;
Inventors:
Assignee:
International Business Machines Corporations, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01); G06F 9/455 (2006.01);
U.S. Cl.
CPC ...
Abstract
An initial clock gating function is introduced to an original circuit design. Using abstraction-refinement, the initial clock gating function is modified such that the gated circuit design is equivalent to the original circuit design. A model checker, such as a SAT solver, may be utilized to determine equivalency of two circuit designs. A counter-example may be determined by the model checker to negate equivalency. The counter-example may be utilized to modify the initial clock gating function to determine a modified gated circuit design that is equivalent to the original circuit design.