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:
Oct. 02, 2012
Filed:
Jul. 27, 2010
Applicant:
Won Kyung Chung, Icheon-si, KR;
Inventor:
Won Kyung Chung, Icheon-si, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/16 (2006.01); H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data driving impedance auto-calibration circuit includes: a detection block configured to calibrate a characteristic voltage generated by detecting an operation characteristic variation of an element, according to a code signal, and generate a calibrated characteristic voltage; a comparison block configured to compare the calibrated characteristic voltage with a reference voltage and output a comparison result signal; and a code calibration block configured to calibrate the code signal according to the comparison result signal.