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.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Jun. 13, 2003
Applicants:
Kiyoshi Kodani, Tottori, JP;
Susumu Iida, Tottori, JP;
Koji Sawada, Tottori, JP;
Inventors:
Assignees:
Sanyo Electric Co., Ltd., Osaka, JP;
Tottori Sanyo Electric Co., Ltd., Tottri, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A navigation apparatus acquires geographic information from a server apparatus. When the navigation apparatus does not store any geographic information that provides a continuous route from the starting point to a destination point, it transmits data of the starting point and destination point to the server apparatus to acquire therefrom geographic information that provides a continuous route from the starting point to the destination point. This efficient acquisition of geographic information realizes reduction of communication time and communication costs.