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:
Feb. 15, 2011
Filed:
Dec. 24, 2004
Applicants:
Yoshinori Endo, Kanagawa, JP;
Shinichi Amaya, Kanagawa, JP;
Inventors:
Yoshinori Endo, Kanagawa, JP;
Shinichi Amaya, Kanagawa, JP;
Assignee:
Xanavi Informatics Corporation, Kanagawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/30 (2006.01); G01C 21/32 (2006.01); G01C 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A navigation device that calculates an expected travel time or an expected arrival time for each retrieved route, using link costs predetermined for calculation of expected travel times regardless of search conditions. As the link costs for the calculation of expected travel times, are used link travel times obtained by statistically processing traffic information collected in the past, for example.