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:
Aug. 11, 2015
Filed:
Mar. 30, 2012
Applicants:
Tae Wook Kim, Seoul, KR;
Dong Kyue Kim, Seoul, KR;
Byong Deok Choi, Seoul, KR;
Inventors:
Assignee:
ICTK CO., LTD, Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
H01H 85/02 (2006.01); H03K 19/177 (2006.01); G09C 1/00 (2006.01); H04L 9/08 (2006.01); G06F 7/58 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H01H 85/0241 (2013.01); G06F 7/588 (2013.01); G09C 1/00 (2013.01); H03K 19/17768 (2013.01); H04L 9/0866 (2013.01); H04L 9/3278 (2013.01);
Abstract
Provided is an apparatus for generating a digital value that may generate a random digital value, and guarantee time invariance of the generated digital value. The apparatus may include a digital value generator to generate a random digital value using semiconductor process variation, and a digital value freezing unit that may be connected to the digital value generator and fixed to one of a first state and a second state based on the generated digital value, to freeze the digital value.