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. 24, 2010
Filed:
Jul. 29, 2008
Nak-kyu Park, Ichon, KR;
Nak-Kyu Park, Ichon, KR;
Hynix Semiconductor Inc., , KR;
Abstract
An apparatus for calibrating on-die termination for a semiconductor integrated circuit includes a comparing unit that compares a code conversion voltage, which is obtained by converting an internal code into an analog voltage, with a reference voltage, and outputs a comparison result signal, a code control unit that compares a current comparison result signal and a previous comparison result signal, among comparison result signals obtained by sequential comparison operations by the comparing unit, to determine whether or not the levels thereof are the same, and outputs an external code update signal according to the comparison result, and a counter that increases or decreases the internal code according to the comparison result signal and outputs the internal code as an external code according to the external code update signal.