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. 25, 2012
Filed:
Jan. 12, 2010
Byung Doo Kim, Daejeon, KR;
Youngsu Cho, Seoul, KR;
Sung JO Yun, Daejeon, KR;
Myung IN Ji, Daejeon, KR;
Byung Doo Kim, Daejeon, KR;
Youngsu Cho, Seoul, KR;
Sung Jo Yun, Daejeon, KR;
Myung In Ji, Daejeon, KR;
Electronics & Telecommunications Research Institute, Daejeon, KR;
Abstract
A terminal location measuring device includes a database for storing registration information of a plurality of access points (AP's) forming a first infrastructure system for wireless LAN-based indoor location determination. The terminal location measuring device sets a search range of a database by using location information of the terminal acquired through a second infrastructure system that is different from the first infrastructure system, an identifier of at least one of a plurality of AP's, and a signal measurement value. The terminal location measuring device extracts registration information of an AP having the same identifier as at least one AP within the search range of the database, and measures a location of the terminal by using registration information of the AP.