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. 25, 2010
Filed:
Sep. 05, 2006
Akio Sumizawa, Sagamihara, JP;
Yoshinori Endo, Mito, JP;
Shinichi Amaya, Higashiyamato, JP;
Taketo Tsuburaya, Sagamihara, JP;
Akio Sumizawa, Sagamihara, JP;
Yoshinori Endo, Mito, JP;
Shinichi Amaya, Higashiyamato, JP;
Taketo Tsuburaya, Sagamihara, JP;
Xanavi Informatics Corporation, Zama-shi, JP;
Abstract
Route search is performed considering the fact that traffic conditions differ according to lane even for the same road. A navigation device performs route search, using link costs (link travel times) classified by lane. For example, the navigation device searches for a route having the lowest total cost to the destination, using link data that determine cost for each lane of a component link of a road on a map. A cost of a lane on which a vehicle runs to move to a next link, being the cost of any lane of the link, is used as a cost of a link on a route.