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:
Jul. 07, 2015
Filed:
Nov. 15, 2011
Yuki Toyoda, Tokyo, JP;
Naoko Ito, Tokyo, JP;
Yuki Toyoda, Tokyo, JP;
Naoko Ito, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
The present invention enables comparison of the number of data items between groups. The anonymization device according to the present invention refers to a user information storage unit storing data items including user information, detects a singularity group that does not satisfy a predetermined anonymity metrics when the data items corresponding to a plurality of users are grouped based on the user information, selects an acquired data item from each group based on a predetermined rule corresponding to the anonymity metrics, such that all groups satisfy the anonymity metrics when a data item is acquired from each of the groups other than the singularity group and the user information is generalized into the same value together with a data item of the singularity group, generates an anonymized data item by generalizing the user information of the data item of the singularity group and the acquired data items into the same value, and stores the generated anonymized data items in an anonymized user information storage unit, together with a data item of each group other than the singularity group, with this data item being other than the acquired data items.