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, 2005
Filed:
Oct. 09, 2001
Joseph P. Kennedy, Jr., Great Falls, VA (US);
Joseph P. Kennedy, Jr., Great Falls, VA (US);
Grayson Wireless, Reston, VA (US);
Abstract
A system and method for geolocating a mobile unit from a single base station is described. Communication signals and pilot signal information from a mobile unit are received at a base station with randomly-located antennas. Certain parameters of the signals are detected and a set of real-time, but ambiguous, location measurements is determined. The real-time measurements are compared to reference measurements previously stored in a database, indexed by range and bearing from the base station, to find the best match and thereby the geolocation of the mobile unit. A time history of the mobile unit's position is stored and compared with static information from maps and other geomorphological data to further refine the geolocation of the mobile unit.