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:
Jul. 29, 2014
Filed:
Oct. 05, 2011
Sang Hyun MO, Daejeon, KR;
Heyung Sub Lee, Daejeon, KR;
Jae Heum Lee, Daejeon, KR;
Seung-il Myong, Daejeon, KR;
Hoe-sung Yang, Daejeon, KR;
Kang Bok Lee, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Sang Hyun Mo, Daejeon, KR;
Heyung Sub Lee, Daejeon, KR;
Jae Heum Lee, Daejeon, KR;
Seung-Il Myong, Daejeon, KR;
Hoe-Sung Yang, Daejeon, KR;
Kang Bok Lee, Daejeon, KR;
Cheol Sig Pyo, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
To track the location of a terminal in an indoor space by using a pseudo GPS signal transmitter, a GPS signal sent from an artificial satellite is received, and a clock signal of the artificial satellite is extracted from the received GPS signal to perform synchronization with the artificial satellite. Once synchronization with the artificial satellite is performed, a pseudo GPS signal is generated, and the transmission time of the pseudo GPS signal is controlled. The GPS signal is sent to the terminal located in the indoor space by a plurality of transmitting antennas based on the controlled transmission time, thereby enabling the terminal located in the indoor space to track its location.