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.

Date of Patent:
Jan. 14, 2014

Filed:

Nov. 23, 2009
Applicants:

Sangwoo Rhie, Seoul, KR;

Sangmok Sohn, Gyeonggi-do, KR;

Soonjae Jeong, Gyeonggi-do, KR;

Jaesic Jeon, Seoul, KR;

Youngshin Yoon, Seoul, KR;

Youngil Kim, Gyeonggi-do, KR;

Sunshin an, Seoul, KR;

Sungjun Kim, Seoul, KR;

Youngmin Ji, Seoul, KR;

Joosik Lee, Seoul, KR;

Inventors:

Sangwoo Rhie, Seoul, KR;

Sangmok Sohn, Gyeonggi-do, KR;

Soonjae Jeong, Gyeonggi-do, KR;

Jaesic Jeon, Seoul, KR;

Youngshin Yoon, Seoul, KR;

Youngil Kim, Gyeonggi-do, KR;

Sunshin An, Seoul, KR;

Sungjun Kim, Seoul, KR;

Youngmin Ji, Seoul, KR;

Joosik Lee, Seoul, KR;

Assignees:

SK Telecom Co., Ltd., Jung-gu, Seoul, KR;

SK Planet Co., Ltd., Jung-gu, Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a method for measuring a location of a radio frequency identification (RFID) reader by using beacons, and an RFID system for measuring a location of a moving RFID reader in an RFID system comprising: a plurality of beacon devices for emitting beacons; an RFID tag for transmitting pre-stored information by using radio frequency identification; and an RFID reader for calculating a current location using a plurality of at least three beacons wherein the RFID reader receives the plurality of beacons from the plurality of beacon devices while moving, and receiving the information from the RFID tag by using the radio frequency identification. According to the present invention, it is possible to increase the accuracy of the location measurement of a moving RFID reader in an RFID system because the location of the RFID reader is measured in consideration of propagation environments.


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