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. 14, 2012
Filed:
Dec. 31, 2010
Applicant:
Geun IL Lee, Icheon-si, KR;
Inventor:
Geun Il Lee, Icheon-si, KR;
Assignee:
SK Hynix, Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
Abstract
An impedance control signal generation circuit includes an impedance control signal generation unit configured to generate an impedance control signal in response to a command, a storage unit configured to latch and output the impedance control signal in response to an update pulse signal, a control unit configured to determine whether the impedance control signal is within a predetermined range and generate an update enable signal according to a determination result, and a prohibition unit configured to control input of the update pulse signal to the storage unit in response to the update enable signal.