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:
Dec. 04, 2007

Filed:

Apr. 17, 2002
Applicant:

Kazuhiro Sakata, Tokyo, JP;

Inventor:

Kazuhiro Sakata, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A retrieval system includes a retrieval server for providing retrieval service and a retrieval device accessible through a transmission medium by the retrieval server. The retrieval device is configured to modify a first retrieval condition with a first retrieving extent into a second retrieval condition with a second retrieving extent which includes the first retrieving extent and which is greater than the first retrieving extent. The server retrieves first retrieved information under a second retrieval condition. The retrieval device retrieves second retrieved information from the first retrieved information under a first retrieval condition designated by a user. The first retrieval condition includes a first factor in connection with the user's privacy-related information. The first retrieval condition includes a second factor corresponding to the first factor. The second factor has a greater retrieving extent than the first factor for protection of the user's privacy-related information.


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