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:
Mar. 02, 2010
Filed:
Aug. 30, 2006
Chan-kyung Kim, Suwon, KR;
Chan-kyung Kim, Suwon, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A duty cycle correction circuit and a delay locked loop (DLL) including the duty cycle correction circuit, are capable of controlling their operation in order to correctly analyze the cause of generation of a duty cycle error when the duty cycle error is generated in the DLL. The duty cycle correction circuit selectively outputs to a DLL core duty cycle offset information for controlling a duty cycle of an internal clock signal synchronized to an external clock signal under the control of a switching control signal. The DLL corrects the duty cycle of a reference clock signal according to the duty cycle offset information, thereby outputting a reference clock signal having a 50% duty cycle.