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:
Sep. 17, 2013
Filed:
Dec. 13, 2010
Malay K. Ganai, Plainsboro, NJ (US);
Sicun Gao, Pittsburg, PA (US);
Franjo Ivancic, Princeton, NJ (US);
Aarti Gupta, Princeton, NJ (US);
Malay K. Ganai, Plainsboro, NJ (US);
Sicun Gao, Pittsburg, PA (US);
Franjo Ivancic, Princeton, NJ (US);
Aarti Gupta, Princeton, NJ (US);
NEC Laboratories America, Inc., Princeton, NJ (US);
Abstract
A system and method for deciding the satisfiability of a non-linear real decision problem is disclosed. Linear and non-linear constraints associated with the problem are separated. The feasibility of the linear constraints is determined using a linear solver. The feasibility of the non-linear constraints is determined using a non-linear solver which employs interval constraint propagation. The interval solutions obtained from the non-linear solver are validated using the linear solver. If the solutions cannot be validated, linear constraints are learned to refine a search space associated with the problem. The learned constraints and the non-linear constraints are iteratively solved using the non-linear solver until either a feasible solution is obtained or no solution is possible.