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:
Apr. 20, 2010

Filed:

Jul. 13, 2005
Applicants:

Takayuki Matsunaga, Chiyoda-ku, JP;

Hiroshi Tojo, Chiyoda-ku, JP;

Inventors:

Takayuki Matsunaga, Chiyoda-ku, JP;

Hiroshi Tojo, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

A pedestrian navigation system, an information delivery server, and a program for naturally guiding (such as speech-guiding) the user of a portable terminal at an intersection are disclosed. An information delivery server includes a map database containing data such as nodes including paths constituting intersections, links, and costs of the links, a path seeking section, an intersection path judging section for detecting a path passing through an intersection from guidance paths which the path seeking section has sought, a guidance point determining section which determines a guidance point for path guidance, a guidance data creating section which determines a guidance pattern of path guidance according to the guidance point, and a data delivering section for delivering map data, guidance path data, and guidance data to a portable terminal. The guidance point determining section selects a specific node out of all the nodes constituting intersections as a guidance point.


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