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. 18, 2008
Filed:
Jul. 29, 2004
Chanakya Damarla, Pittsburgh, PA (US);
James Ivers, Pittsburgh, PA (US);
Mark Pollard, Hudson, MA (US);
Andrew J. Kompanek, Pittsburgh, PA (US);
Brian H. Trammell, Pittsburgh, PA (US);
Chanakya Damarla, Pittsburgh, PA (US);
James Ivers, Pittsburgh, PA (US);
Mark Pollard, Hudson, MA (US);
Andrew J. Kompanek, Pittsburgh, PA (US);
Brian H. Trammell, Pittsburgh, PA (US);
Pango Networks, Inc., Framingham, MA (US);
Abstract
The invention provides a novel method for preparing a wireless environment for location determination of a wireless mobile unit, and for location determination of a wireless mobile unit. In preparing the physical environment, the invention utilizes novel techniques, including novel techniques to place transmitters, the removal of outlying data in the creation of reference RF fingerprints, and algorithms to obtain accurate reference RF fingerprints. In determining the location of a wireless mobile unit, the invention utilizes novel techniques, including novel techniques to select transmitters, the removal of outlying data in the creation of reference RF fingerprints, and algorithms to obtain accurate reference RF fingerprints.