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. 04, 2020
Filed:
Feb. 01, 2019
Doosan Heavy Industries & Construction Co., Ltd., Changwon-si, Gyeongsangnam-do, KR;
Seong Yeol Yang, Yongin-si, KR;
Young Hoon Seo, Suwon-si, KR;
Seung Take Oh, Daejeon, KR;
Seock Moon Yoon, Daejeon, KR;
Doosan Heavy Industries Construction Co., Ltd, Gyeongsangnam-do, KR;
Abstract
A device and method determine a location of a terminal by selecting one of a GPS signal and a beacon signal when a terminal moves indoors and outdoors. The device includes a measurement unit for measuring a signal strength of a GPS signal and a signal strength of a beacon signal, respectively; a selection unit for comparing the measured signal strengths and selecting one signal of the GPS signal and the beacon signal based on the comparison; and a determination unit for determining the location of the terminal using the selected signal. The selection unit compares the measured signal strengths based on at least one of a received signal strength indicator (RSSI) and a signal-to-noise ratio (SNR) to select a signal having a comparatively stronger strength, and selects a signal whose strength is increasing when the measured signal strengths are substantially equal to each other.