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:
Feb. 27, 2007
Filed:
Jul. 14, 2003
Applicants:
Geun-hee Cho, Kyungki-do, KR;
Kyu-hyoun Kim, Kyungki-do, KR;
Inventors:
Geun-Hee Cho, Kyungki-do, KR;
Kyu-Hyoun Kim, Kyungki-do, KR;
Assignee:
Samsung Elctronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/24 (2006.01); H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A delay locked loop (DLL) circuit having a duty cycle corrector (DCC) that has a broad range of duty cycle correction, consumes only a small amount of power, has few restrictions on operating frequency, and improves the characteristics of a memory device is described. The delay locked loop circuit includes an additional loop for duty cycle correction as well as loops for controlling a rising edge and a falling edge of output signals. Thus, the delay locked loop circuit can internally correct the duty cycle without the use of a phase blender.