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. 04, 2012
Filed:
Apr. 20, 2011
Applicants:
Hyun-su Choi, Suwon-si, KR;
Nak-woo Sung, Yongin-si, KR;
Inventors:
Hyun-Su Choi, Suwon-si, KR;
Nak-Woo Sung, Yongin-si, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A security circuit includes an electrical fuse read only memory (ROM) including a plurality of electrical fuse units. The electrical fuse units are arranged to correspond to bit values of an initial security key before the electrical fuse ROM is programmed.