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:
Jun. 12, 2018
Filed:
Aug. 10, 2011
Dong Kyue Kim, Seoul, KR;
Byong Deok Choi, Seoul, KR;
Dong Hyun Kim, Gyeonggi-do, KR;
Sang Seon Park, Gyeonggi-do, KR;
Kwang Hyun Jee, Gyeonggi-do, KR;
Dong Kyue Kim, Seoul, KR;
Byong Deok Choi, Seoul, KR;
Dong Hyun Kim, Gyeonggi-do, KR;
Sang Seon Park, Gyeonggi-do, KR;
Kwang Hyun Jee, Gyeonggi-do, KR;
ICTK CO., LTD., Gyeonggi-do, KR;
Abstract
Disclosed are an IC chip for preventing identification key leak and an authorization method thereof. An IC chip capable of performing a financial function includes: a PIN supply unit for supplying a PIN used for authorization when performing a financial function using the IC chip; and a blocking unit for physically blocking the gap between the PIN supply unit and an input-output interface when the PIN is supplied to the outside through the input-output interface at an initial access of the IC chip.