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. 22, 2005
Filed:
Aug. 11, 2003
Applicants:
Sang-hoon Hong, Ichon-shi, KR;
Se-jun Kim, Ichon-shi, KR;
Jeong-hoon Kook, Ichon-shi, KR;
Inventors:
Assignee:
Hynix Semiconductor Inc., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K003/017 ;
U.S. Cl.
CPC ...
Abstract
A duty cycle correction (DCC) circuit including first and second clock dividers for dividing ordinary and sub-input clocks. Optional first and second variable delay devices delay the divided clocks. First and second mixers mix an optionally delayed ordinary divided clock and sub-ordinary divided clock, or an ordinary divided clock and an optionally delayed sub-ordinary divided clock. A logic combination device is included to produce a clock at the same frequency as the ordinary and sub-input clocks, with a corrected duty cycle.