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:
Aug. 12, 2008
Filed:
Dec. 28, 2004
Sungsoo Choi, Seongnam-si, KR;
Hui-myung OH, Seoul, KR;
Kwan-ho Kim, Seoul, KR;
Yoan Shin, Seoul, KR;
Won Cheol Lee, Seoul, KR;
Woon-yong Park, Seoul, KR;
Youngjin Park, Anyang, KR;
Sungsoo Choi, Seongnam-si, KR;
Hui-Myung Oh, Seoul, KR;
Kwan-Ho Kim, Seoul, KR;
Yoan Shin, Seoul, KR;
Won Cheol Lee, Seoul, KR;
Woon-Yong Park, Seoul, KR;
Youngjin Park, Anyang, KR;
Korea Electrotechnology Research Institute, Gyeongsangnam-Do, KR;
Abstract
Disclosed is a wireless positioning system and method that can perform a high-precision position tracking. The wireless positioning system includes a target device that is an object of wireless positioning, beacon devices and a processing unit. The beacon devices transmits wireless signals and sense reception time points of the wireless signals transmitted from the other beacon devices and the target device and received at time points after the transmission of the wireless signal. The target device receives the wireless signal transmitted from at least one of the beacon devices, and then transmits the wireless signal to the beacon devices. The processing unit obtains the position of the target device by calculating distances between the beacon devices and the target device using information about the reception time points of the wireless signals sensed by the respective beacon devices.