LABEL FOR PRODUCT AUTHENTICATION, METHOD FOR GENERATING AUTHENTICATION CODE OF LABEL, METHOD AND SYSTEM FOR AUTHENTICATING LABEL, PORTABLE TERMINAL FOR AUTHENTICATING LABEL, AND COMPUTER-READABLE RECORDING MEDIUM FOR AUTHENTICATING LABEL

Title:

Document Type and Number:

WIPO Patent Application WO/2013/168962

Kind Code:

A1

Abstract:

The present invention relates to a security technology for preventing copying of an article. More particularly, the present invention relates to a label for product authentication and to a method and an apparatus for authenticating the label. The label for product authentication according to the present invention comprises: a carrier layer made of a transparent or semi-transparent material; and a plurality of first reflection particles and second reflection particles disposed at random in the carrier layer. Furthermore, the method for generating an authentication code of a label according to the present invention comprises a step of comparing the difference in brightness between the corresponding grid coordinates of two different images which have been normalized, giving, if the brightness difference falls within a predetermined value range, the code value that classifies the grid coordinate as a complete reflection particle to the relevant grid coordinate, and giving, if the brightness difference is larger than the predetermined value, the code value that classifies the grid coordinate as a deflected reflection particle to the relevant grid coordinate. Furthermore, the label authentication system according to the present invention comprises a label registration device for generating a registration authentication code, a label reader for generating a test authentication code, and a label authentication server. Furthermore, the portable wireless terminal according to the present invention comprises a control unit, a display unit, a camera, a wireless communication module, and a memory device for storing a label authentication application program to be executed in the control unit.

Inventors:

CHO HAN YONG (KR)
CHUN JAE WOOK (KR)
KANG MYUNG HO (KR)

Application Number:

PCT/KR2013/003953

Publication Date:

November 14, 2013

Filing Date:

May 07, 2013

Export Citation:

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Assignee:

CHO HAN YONG (KR)
CHUN JAE WOOK (KR)
KANG MYUNG HO (KR)

International Classes:

G06K9/74; G06K9/00

Domestic Patent References:

WO1998045826A1

1998-10-15

Foreign References:

US20030014647A1	2003-01-16
KR101113035B1	2012-02-27
US20070170257A1	2007-07-26
GB2304077A	1997-03-12
GB2304077A	1997-03-12
GB2324065A	1998-10-14
US20070170257A1	2007-07-26

Other References: