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. 08, 2020
Filed:
Jun. 05, 2015
Nec Corporation, Tokyo, JP;
Isamu Teranishi, Tokyo, JP;
NEC CORPORATION, Minato-ku, Tokyo, JP;
Abstract
Provided is a criteria generation device and the like that al low high-speed that achieves high-speed search even if a database contains unsearchable information. The criteria generation device reads, from a memory, target search criteria including first search criteria and second search criteria representing criteria for retrieving information from a database; calculates, regarding the read target search criteria, truth values indicating whether or not search criteria being a subset of the first search criteria are satisfied; sets the calculated truth values for the subset of the search criteria; and generates third search criteria depending on whether the second search criteria are true or false in accordance with whether or not the target search criteria for which the truth values are set are satisfied.