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:
May. 03, 2005
Filed:
Aug. 30, 2002
Yuusuke Nakane, Tokyo-to, JP;
Atsuhiko Fukushima, Kawagoe, JP;
Toyohiro Takenaka, Kawagoe, JP;
Takashi Takenaga, Tokyo-to, JP;
Yuji Koga, Kawagoe, JP;
Yuusuke Nakane, Tokyo-to, JP;
Atsuhiko Fukushima, Kawagoe, JP;
Toyohiro Takenaka, Kawagoe, JP;
Takashi Takenaga, Tokyo-to, JP;
Yuji Koga, Kawagoe, JP;
Pioneer Corporation, Tokyo-to, JP;
Increment P Corporation, Tokyo-to, JP;
Abstract
A communication type navigation apparatus can communicate with a server device via a communication path. The navigation apparatus requests route search, and the server device executes route search to produce route information of a searched route. Then, the meshes necessary to travel along the searched route are determined, and the navigation apparatus obtains necessary mesh data from the server device. The navigation apparatus may request newer mesh data to the server device based on the updating information of the mesh data. By appropriately determining the mesh data to be and not to be downloaded from the server device, the communication cost necessary for obtaining the mesh data can be saved.