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.

Date of Patent:
Jul. 18, 2006

Filed:

Sep. 10, 2002
Applicants:

Kazuhiro Sakata, Tokyo, JP;

Akihisa Kurashima, Tokyo, JP;

Inventors:

Kazuhiro Sakata, Tokyo, JP;

Akihisa Kurashima, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G01C 21/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A location information conversion device which can ensure privacy protection of a search object. Upon receiving a request with a designated accuracy from an input/output section, a location information generating section acquires location information from a location measurement section and supplies the location information to an accuracy adjustment section, together with the designated accuracy. The accuracy adjustment section converts the location information into location information of an accuracy equal to or lower than the designated accuracy and returns the resulting location information to the location information generating section. The location information generating section sends the location information whose accuracy has been converted to the requesting party via an input/output section. This ensures protection of privacy, since the location information about a search object is converted into location information of an accuracy equal to or lower than the designated accuracy.


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