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. 23, 2009
Filed:
Jan. 24, 2001
Thomas J. Walczak, Woodstock, IL (US);
William P. Alberth, Jr., Crystal Lake, IL (US);
Thomas J. Walczak, Woodstock, IL (US);
William P. Alberth, Jr., Crystal Lake, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and system for evaluating the validity of location fixes of a mobile station by comparison of a location fix for which a validity determination is desired with one or more prior reference location fixes. In one embodiment, a satellite positioning system based location fix of a satellite positioning system enabled cellular mobile station in a cellular communications network is validated by comparison of the satellite positioning system based location fix to one or more of a plurality of network based location fixes, or to an estimated future location fix of the mobile station.