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:
Mar. 03, 2026
Filed:
Jul. 19, 2023
Skaichips Co., Ltd., Suwon-si, KR;
Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;
Kang Yoon Lee, Seoul, KR;
Dong Gyun Kim, Suwonsi, KR;
Ju Won Oh, Suwon-si, KR;
Jong Wan Jo, Suwon-si, KR;
SKAIChips Co., Ltd., Suwon-si, KR;
Research & Business Foundation SUNGKYUNKWAN UNIVERSITY, Suwon-si, KR;
Abstract
An indoor wireless positioning method includes receiving initial received signal strength indicator (RSSI) information from a reception unit; searching for a fingerprint matching measured initial RSSI information in a fingerprint database; determining a first location corresponding to the retrieved fingerprint to be an initial location of the reception unit; receiving additional RSSI information from the reception unit; extracting features of variability between the additional RSSI information and the initial RSSI information; searching for variability fingerprints matching the initial location and extracted RSSI variability features in a variability fingerprint database; and updating a second location to a current location of the reception unit when the second location corresponding to the retrieved variability fingerprint is different from the initial location, wherein the second location is a location in a candidate area within a preset distance range centered on the first location.