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:
Dec. 26, 2006
Filed:
May. 28, 2004
Guang Zeng, Selden, NY (US);
David P. Goren, Smithtown, NY (US);
Hoai Xuan VU, Westminster, CA (US);
Guang Zeng, Selden, NY (US);
David P. Goren, Smithtown, NY (US);
Hoai Xuan Vu, Westminster, CA (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
A method for estimating a location of a wireless device in a wireless local network is provided. The method includes forming a first set comprised of the signal strength received from access points that the wireless device received a signal from and an indicator of no signal strength measured for access points that the wireless device did not receive a signal from. Next, a scan subset can be formed comprised of access points in the first set that has associated signal strength. Next, a cluster comprised of the calibration points can be formed based on the scan subset. A distance between the first set and each of the calibration point in the cluster can be calculated. Then, the smallest distance can be selected as the location estimate.