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.

Date of Patent:
Jun. 23, 2015

Filed:

Nov. 05, 2010
Applicants:

Kyojun Ku, Yongin-si, KR;

Sunghak Song, Seongnam-si, KR;

Taeho Kim, Yongin-si, KR;

Kyung Eun Woo, Yongin-si, KR;

Inventors:

Kyojun Ku, Yongin-si, KR;

Sunghak Song, Seongnam-si, KR;

Taeho Kim, Yongin-si, KR;

Kyung Eun Woo, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); G01S 5/02 (2010.01);
U.S. Cl.
CPC ...
G01S 5/021 (2013.01); G01S 5/0252 (2013.01);
Abstract

Provided are real time location tracking system and method of a wireless device using a wireless LAN AP, the system and method include measuring intensities of APs that are currently detected by the wireless device of which location is to be estimated, collecting ADD, constructing RDLE including locations, a list of APs corresponding to the locations, signal intensities of the APs, and reliabilities of the APs, storing the RDLE, comparing the RDLE with the ADD, and estimating the location of the wireless device, which realizes seamless location tracking technology indoors and outdoors, thereby providing a variety of location tracking services.


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