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. 29, 2006
Filed:
Jun. 25, 2004
Applicant:
Jong-tae Kwak, Ichon-shi, KR;
Inventor:
Jong-Tae Kwak, Ichon-shi, KR;
Assignee:
Hynix Semiconductor Inc., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for detecting locking information of a DLL clock in a semiconductor memory device includes a delayed locked loop for generating a first comparison signal and a first delay end signal; a phase state storing block for receiving the first comparison signal and the first delay end signal to thereby generate a locking selection signal; and a locking information detector for generating a locking state signal presenting the locking information in response to the first comparison signal, the first delay end signal and the locking selection signal.