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:
Jan. 20, 2004

Filed:

Jan. 14, 2002
Applicant:
Inventors:

Koichi Inoue, Tokyo, JP;

Masatsugu Norimoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F 1/562 ;
U.S. Cl.
CPC ...
G06F / ; G06F 1/562 ;
Abstract

When map data necessary for route guiding is pre-read from a map recording medium , and accumulated in a data buffer, the quantity or the ratio of the pre-read data with respect to data required for the entire distance is notified by an image or a voice to a user. Thus, the user can know a progress in the pre-reading operation of the map data.


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