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:
May. 30, 2006

Filed:

Mar. 04, 2002
Applicants:

Kiyoshi Kodani, Tottori, JP;

Hiroshi Tanaka, Tottori, JP;

Takashi Sugai, Tottori, JP;

Isao Umezawa, Tottori, JP;

Hidenori Kadono, Tottori, JP;

Yuichi Abe, Tottori, JP;

Kazuhiro Nakashima, Tottori, JP;

Shinji Takuno, Tottori, JP;

Tsutomu Taguchi, Tottori, JP;

Inventors:

Kiyoshi Kodani, Tottori, JP;

Hiroshi Tanaka, Tottori, JP;

Takashi Sugai, Tottori, JP;

Isao Umezawa, Tottori, JP;

Hidenori Kadono, Tottori, JP;

Yuichi Abe, Tottori, JP;

Kazuhiro Nakashima, Tottori, JP;

Shinji Takuno, Tottori, JP;

Tsutomu Taguchi, Tottori, JP;

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

A navigator receives, through communication with a server, only such map information or locality information as is considered to be necessary, and stores it by overriding with it already used map information and locality information. Thus, the navigator, despite having a small storage capacity, is free from interruption of display. Receiving minimum needed information helps save the communication charge.


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