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. 12, 2013
Filed:
Dec. 15, 2009
Toby S. Tennent, Chicago, IL (US);
Michael L. Aper, Chicago, IL (US);
Matthew G. Lindsay, San Jose, CA (US);
Gary R. Rockwood, West Chicago, IL (US);
Toby S. Tennent, Chicago, IL (US);
Michael L. Aper, Chicago, IL (US);
Matthew G. Lindsay, San Jose, CA (US);
Gary R. Rockwood, West Chicago, IL (US);
Navteq B.V., Veldhoven, NL;
Abstract
A speed profile dictionary and associated lookup tables are disclosed. A set of distinct speed profiles is defined using a statistical analysis routine. Preferably, the statistical analysis routine uses clustering. The speed profiles are then matched to location codes identifying physical locations on a road network and days of the week. Applications using historic traffic data may use the speed profile dictionary and one or more lookup tables instead of a complete historic traffic database, thereby reducing the amount of memory needed to store historic traffic data.