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. 01, 2005
Filed:
May. 09, 2003
Paresh Nagda, Fremont, CA (US);
Wenbin LI, Newark, CA (US);
Julia Howlett, San Jose, CA (US);
Rodric C. Fan, Fremont, CA (US);
Xinnong Yang, Shanghai, CN;
James D. Fay, Palo Alto, CA (US);
Paresh Nagda, Fremont, CA (US);
Wenbin Li, Newark, CA (US);
Julia Howlett, San Jose, CA (US);
Rodric C. Fan, Fremont, CA (US);
Xinnong Yang, Shanghai, CN;
James D. Fay, Palo Alto, CA (US);
At Road, Inc., Fremont, CA (US);
Abstract
System and methods for determining and disseminating current traffic information and/or route information are presented. For example, in accordance with one embodiment of the present invention, traffic condition information is collected from mobile units that provide their location or position information. The traffic condition may be determined, for example, based on the difference between the velocity of each mobile unit and the speed limit corresponding to their location. Furthermore, the fastest routes between two locations may be determined and provided based on historical and/or current conditions and provided to a mobile unit. In accordance with another embodiment of the present invention, route information may be utilized to determine whether a mobile unit (e.g., associated with a vehicle) is allowed or prohibited from traveling along a certain route.