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. 18, 2009
Filed:
Dec. 20, 2007
Dong Suk Shin, Ichon, KR;
Hyun Woo Lee, Ichon, KR;
Won Joo Yun, Ichon, KR;
Hynix Semiconductor Inc., , KR;
Abstract
A circuit for correcting a duty cycle includes a duty ratio digital conversion block configured to output duty ratio information of an input clock signal as plural-bit digital signals, a duty ratio information analyzing block configured to analyze the duty ratio information of the input clock signal, generate edge control signals, and select any one of a plurality of delayed clock signals, and a duty ratio control block configured to control duty ratios of a selected delayed clock signal and the input clock signal in response to the edge control signals.
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