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. 22, 2011
Filed:
Jan. 26, 2006
Kenichiro Yamane, Ibaraki, JP;
Yoshinori Endo, Ibaraki, JP;
Kimiyoshi Machii, Ibaraki, JP;
Junsuke Fujiwara, Ibaraki, JP;
Kenichiro Yamane, Ibaraki, JP;
Yoshinori Endo, Ibaraki, JP;
Kimiyoshi Machii, Ibaraki, JP;
Junsuke Fujiwara, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention aims to provide a technique that can download traffic information in a more efficient manner, in a navigation system including a traffic information distribution server and a terminal unit. The information distribution server narrows down possible traffic information to be used for processing at the terminal unit before downloading the information to the unit. For example, the traffic information distribution server may include a traffic information obtaining unit for obtaining traffic information pertaining to a link configuring a route or the periphery of the link (e.g., mesh area including the link), and to a predicted running duration of the link; and a sending unit for downloading the obtained traffic information to the terminal unit. The server or the terminal unit may narrow down the object for download.