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:
Nov. 12, 2013
Filed:
Aug. 01, 2012
Ki Han Kim, Icheon-si, KR;
Ja Beom Koo, Icheon-si, KR;
Ki Han Kim, Icheon-si, KR;
Ja Beom Koo, Icheon-si, KR;
SK Hynix Inc., Hyeonggi-do, KR;
Abstract
A duty cycle correction circuit includes: a duty cycle correction unit configured to correct a duty cycle of an input clock signal according to a duty cycle correction code and generate an output clock signal; a duty cycle detection section configured to detect a duty cycle of the output clock signal and generate an up-down signal; a noise detection signal generation section configured to detect a variation of the up-down signal and generate the noise detection signal; and a duty cycle correction control unit configured to generate the duty cycle correction code in response to the noise detection signal and the up-down signal.