专利检索 ap:("RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY") AND inv:"Welsey Prince Vanaraj" 第 1 页

1.

发明授权
NFC QR code label for preventing forgery and falsification and method for producing NFC QR code label 有权

公开(公告)号：US11475265B2

公开(公告)日：2022-10-18

申请号：US17416471

申请日：2018-12-19

申请人： RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

发明人： Gyou Jin Cho , Jun Feng Sun , Hye Jin Park , Kiran Shrestha , Gyan Rajkoirala , You Shin Kim , Pravesh Yadav , Sajjan Parajuli , Welsey Prince Vanaraj , Amol Marotrao Kale , Jinhwa Park , Sunggeun Lee

IPC分类号： G06K19/07 , B42D25/378 , G02F1/167 , G06K19/06 , G06K19/077

摘要： An NFC QR code label according to the present invention comprises: a rectenna for receiving a radio frequency signal from a terminal device and converting the signal into DC power; a ring oscillator activated by receiving the DC power supplied from the rectenna, and producing an oscillation signal having a predetermined frequency; and a light-emitting QR code flickering in response to the oscillation signal. The light-emitting QR code includes a QR code pattern formed by means of gravure printing using a nonconductor ink.