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:
Oct. 22, 2013
Filed:
Oct. 07, 2010
Shinya Miyakawa, Tokyo, JP;
Shinya Miyakawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In an information management apparatus, a data receiving section receives position data periodically from a plurality of mobile terminals. A second extracting section generates a power set to at least one position data, and generates a node composed of identification data of a user and object data as elements. A processing section registers on a node, a movement data set having as an element, at least one of the position data showing a position before movement to a position shown by the object data and the position data showing a position after the movement from a position shown by the object data. An abstracting section abstracts the object data an abstraction scheme with a priority determined according to the number of times of abstraction. A testing section lists up other nodes, each of which is different from the node of the object data in identification data, and same as the node in the object data, and which has a movement data set, of which a product with the movement data set of the node is an empty set, and output the object data of the node as anonymity data when the number of other nodes is equal to or more than a predetermined threshold value.