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:
Nov. 23, 2010

Filed:

Aug. 18, 2004
Applicants:

Masaaki Tanizaki, Nishitokyo, JP;

Kishiko Maruyama, Kokubunji, JP;

Shigeru Shimada, Kodaira, JP;

Inventors:

Masaaki Tanizaki, Nishitokyo, JP;

Kishiko Maruyama, Kokubunji, JP;

Shigeru Shimada, Kodaira, JP;

Assignees:

Hitachi, Ltd., Tokyo, JP;

Xanavi Informatics Corporation, Kanagawa, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G 1/123 (2006.01); G01C 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A map display method whereby the contents of a road map displayed can be easily and clearly grasped regardless of the running conditions of a vehicle. In a summarized map displayed on a display screen, an area including a vehicle position, a destinationand a guide routebetween them is displayed in simplified fashion. At a position far from the destination, as shown in FIG.A, a summarized map of a wide area is displayed and objects including a roadand a facilityare limited to a greater degree. With the approach of the vehicle positionto the destination, as shown in FIG.B, the contraction scale is decreased and a summarized map of a middle area is displayed, while at the same time increasing the objects displayed. With a further approach of the vehicle positionto the destination, as shown in FIG.C, a narrower area is displayed in summarization, while at the same time displaying substantially all the objects, thereby making it possible to grasp the neighborhood of the destinationin detail.


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