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:
Mar. 05, 2013

Filed:

Aug. 03, 2007
Applicants:

Hee-seob Ryu, Suwon-si, KR;

Jong-ho Lea, Seongnam-si, KR;

Yong-beom Lee, Seoul, KR;

Inventors:

Hee-seob Ryu, Suwon-si, KR;

Jong-ho Lea, Seongnam-si, KR;

Yong-beom Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01); G01C 21/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method, medium, and system providing an updating traveling route to a user. The navigation system includes a route selecting unit to select an optimal route for an item to traverse based on calculated performance indexes of a plurality of alternative routes for the traversal, a performance index calculating unit to recalculate the performance indexes of the alternative routes during a current traversal of the selected optimal route based on received external information regarding sections of available traversals after a predetermined point in each alternative route beyond a current point of the current traversal, and a route changing unit to selectively update the optimal route during the current traversal based on the recalculated performance indexes.


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