US 12,265,169 B2
Method for access control using real-time positioning technology and the device using the same
Si Woong Yoon, Gwangju-si (KR); Tae Sung Lee, Gunpo-si (KR); Jae Hyeok Jeong, Gimpo-si (KR); and Tae Hoon Lee, Yongin-si (KR)
Assigned to SUPREMA INC., Seongnam-si (KR)
Filed by SUPREMA INC., Seongnam-si (KR)
Filed on Aug. 21, 2023, as Appl. No. 18/236,337.
Application 18/236,337 is a continuation of application No. 18/083,903, filed on Dec. 19, 2022, granted, now 11,754,664.
Claims priority of application No. 10-2022-0117349 (KR), filed on Sep. 16, 2022.
Prior Publication US 2024/0094326 A1, Mar. 21, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 5/02 (2010.01); G01S 5/04 (2006.01); H04W 64/00 (2009.01)
CPC G01S 5/0295 (2020.05) [G01S 5/02521 (2020.05); H04W 64/003 (2013.01); G01S 5/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A positioning method of a positioning module for measuring a location of at least one location-unrecognized device and a location of a terminal, wherein the at least one location-unrecognized device, the terminal and at least one location-recognized device is located in a certain zone, and wherein the positioning module has coordinate information of the at least one location-recognized device and the positioning module does not have coordinate information of the at least one location-unrecognized device, the positioning method comprising:
acquiring coordinate information of the terminal based on signals transmitted and received between the at least one location-recognized device and the terminal, wherein the coordinate information of the terminal includes at least one of coordinate information at a first location, coordinate information at a second location, and coordinate information at a third location;
acquiring distance information between the terminal at at least one location of the first location, the second location and the third location and the at least one location-unrecognized device and generating at least one virtual circle based on the distance information between the terminal at the at least one location and the at least one location-unrecognized device; and
estimating the coordinate information of the at least one location-unrecognized device based on the coordinate information of the terminal and the at least one virtual circle.