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. 09, 2013

Filed:

Jun. 29, 2010
Applicants:

Mariko Okude, Hitachi, JP;

Michihito Mizuno, Ebina, JP;

Hirofumi Komine, Yokosuka, JP;

Kenji Suzuki, Tokyo, JP;

Shinichi Amaya, Higashiyamato, JP;

Yuji Oohara, Saitama, JP;

Inventors:

Mariko Okude, Hitachi, JP;

Michihito Mizuno, Ebina, JP;

Hirofumi Komine, Yokosuka, JP;

Kenji Suzuki, Tokyo, JP;

Shinichi Amaya, Higashiyamato, JP;

Yuji Oohara, Saitama, JP;

Assignees:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;

Clarion Co., Ltd., Tokyo, JP;

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

A position coordinate based route transmitted from a server is reconstructed as a route of link numbers or node numbers in map data of navigation apparatus without error. A route guidance server searches a route from a start point to end point designated by a navigation apparatus; selects all or a part of nodes included in the searched route as route nodes; sets complementary points to the respective selected route nodes on the route and at a distance longer than a predetermined distance from the respective route nodes; and transmits information including coordinate information on the route nodes and complementary points as route information to the navigation apparatus. Then, based on the coordinate information on the route nodes and complementary points transmitted from the server, the navigation apparatus identifies the route nodes and road links connecting the route nodes by identification numbers in map data the navigation apparatus it self has.


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