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:
Nov. 12, 2013
Filed:
Mar. 11, 2010
Masahiro Sakai, Kamakura, JP;
Takeo Imai, Tokyo, JP;
Masahiro Sakai, Kamakura, JP;
Takeo Imai, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A device includes: a storage storing second logical expressions; an storage storing an essential condition which indicates a set of one or more second logical expressions selected such that a proposition is not satisfied that the post-condition is satisfied immediately after a program is executed when a logical product of other second logical expressions obtained by excluding the set indicated by the essential condition from the storage is satisfied; a generator generating a candidate condition represented by a logical product of one or more second logical expressions to include a common second logical expression with the set indicated by the essential condition; a judging unit judging whether satisfied is a proposition that the post-condition is satisfied immediately after the program is executed when the candidate condition is satisfied, and an output unit configured to output the candidate condition determined to satisfy the proposition as representing a pre-condition of the program.