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:
Jun. 26, 2012
Filed:
Dec. 23, 2009
Steven L. Petersen, Los Gatos, CA (US);
Kenneth Jennings, Raleigh, NC (US);
Sean T. Purdy, Durham, NC (US);
Steven L. Petersen, Los Gatos, CA (US);
Kenneth Jennings, Raleigh, NC (US);
Sean T. Purdy, Durham, NC (US);
Waldeck Technology, LLC, Wilmington, DE (US);
Abstract
A system and method for tracking crowds of users are provided. In one embodiment, a central system, which includes one or more servers, operates to obtain current locations for users of mobile devices. Based on the current locations of the users, the central system forms crowds of users. As a result of movement of the users and corresponding location updates, the crowds move and change over time. In order to track at least some of the crowds, crowd snapshots for those crowds are created over time and stored. The crowd snapshots preferably maintain anonymity of the users in the crowd at the time the crowd snapshots are created. Thereafter, the crowd snapshots may be used to generate crowd tracking data for select crowds.