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. 19, 1999

Filed:

Sep. 06, 1996
Applicant:
Inventors:

Ikuo Saga, Aichi, JP;

Shigeki Nakane, Aichi, JP;

Masako Ohta, Tokyo, JP;

Kazuhiro Yokouchi, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
701211 ; 701208 ; 701117 ; 340990 ; 340995 ;
Abstract

A navigation device comprises a traffic information receiving means (103) for receiving traffic information, and a display form controlling unit (107) for displaying a traffic-jam indicating line along a road in a traffic jam on a road map displayed on a display device (106), and for changing display forms, such as the colors or widths, of either roads or traffic-jam indicating lines on the road map on-screen when the display form controlling unit determines from the traffic information received that a number of links each of which are respectively connecting two nodes such as intersections and includes a congested road section is equal to or more than a predetermined number or when the scale of the road map displayed on the display device is smaller than a predetermined scale.


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