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:
Mar. 25, 1997

Filed:

Nov. 09, 1994
Applicant:
Inventors:

Masahiro Ohomori, Saitama, JP;

Masayuki Arai, Saitama, JP;

Takeshi Imai, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08G / ;
U.S. Cl.
CPC ...
340995 ; 340988 ; 340990 ; 3644492 ; 395135 ;
Abstract

A map information regenerating device usable in a vehicle travel guiding apparatus, which device is capable of freely revising a road map, i.e., adding, changing and deleting a road on the road map without changing data stored in a basic map-information storage but correlating change data with existing roads to assure the possibility of performing map-data processing such as course searching according to the revised map data. The device is so constructed that the map information may be read-out from a map information storage and stored in a buffer memory wherein the data is revised in a specified procedure according to the map change data read-out from an additionally used storage medium or/and obtained by using transmitting/receiving means.


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