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. 21, 2016
Filed:
Oct. 25, 2011
Ziyad Hanna, Haifa, IL;
Craig Franklin Deaton, Rowlett, TX (US);
Kathryn Drews Kranen, Menlo Park, CA (US);
Björn Håkan Hjort, Göteborg, SE;
Lars Lundgren, Göteborg, SE;
Ziyad Hanna, Haifa, IL;
Craig Franklin Deaton, Rowlett, TX (US);
Kathryn Drews Kranen, Menlo Park, CA (US);
Björn Håkan Hjort, Göteborg, SE;
Lars Lundgren, Göteborg, SE;
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
A model checking tool, which is used to test a circuit design, attempts to reach a target state from an initial state in the state-space of the circuit design using one or more intermediate states. Through an iterative process, the tool identifies intermediate states in the state-space of the circuit design that are used to generate starting states for subsequent iterations of the process. The intermediate states help to restrict the scope of the state-space search to reduce the time and memory requirements needed to reach the target state. The model checking tool also explores the state-space in parallel from a subset of computed restart states, which reduces the possibility of bypassing any essential intermediate or target states.