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. 02, 2014
Filed:
Jun. 04, 2012
Yael Ben-haim, Haifa, IL;
Alexander Ivrii, Haifa, IL;
Arie Matsliah, Haifa, IL;
Oded Margalit, Rama Gan, IL (US);
Yael Ben-Haim, Haifa, IL;
Alexander Ivrii, Haifa, IL;
Arie Matsliah, Haifa, IL;
Oded Margalit, Rama Gan, IL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus and product for encoding a cardinality constraint in Conjunctive Normal Form (CNF). The method comprising: having a Boolean formula comprising a cardinality constraint, wherein the cardinality constraint relating to a set of Boolean variables, the set of variables consisting of N variables, the cardinality constraint given in a non-Conjunctive Normal Form; and encoding the cardinality constraint in Conjunctive Normal Form based on a mapping by a Perfect Hash Family, whereby said memory is modified to retain the CNF encoded cardinality constraint.