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:
Sep. 13, 2005
Filed:
Nov. 18, 2002
David Stevenson Spain, Portola Valley, CA (US);
Robert Lewis Martin, Antioch, CA (US);
Luis Perez-breva, Barcelona, ES;
David Stevenson Spain, Portola Valley, CA (US);
Robert Lewis Martin, Antioch, CA (US);
Luis Perez-Breva, Barcelona, ES;
Polaris Wireless, Inc., Santa Clara, CA (US);
Abstract
A method for determining the location of a mobile unit (mobile unit) in a wireless communication system is disclosed. The illustrative embodiment provides a computationally-efficient technique for reducing the number of possible positions that have to be analyzed. In particular, the illustrative embodiment eliminates possible positions for the mobile unit from consideration by considering which signals the mobile unit can—and cannot—receive and the knowledge of where those signals can and cannot be received.