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:
Sep. 26, 2017
Filed:
Feb. 16, 2016
Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;
Tae Jin Lee, Suwon-si, KR;
Yun Min Kim, Suwon-si, KR;
Ji Hyoung Ahn, Uiwang-si, KR;
Se Houn Lee, Uiwang-si, KR;
Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;
Abstract
Provided is a method of preventing collision between a plurality of RFID tags by an RFID reader. An anti-collision method by a tag reader apparatus in an RFID system including a plurality of RFID tags, includes changing a length of a collision recovery slot in the collision recovery slot which successfully identifies a plurality of tags even though at least two tags simultaneously replied in one slot to cause collision so that data transmission of at least one identified tag is achieved.