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. 31, 2009
Filed:
Jun. 29, 2007
Applicant:
Bo-yeun Kim, Kyoungki-do, KR;
Inventor:
Bo-Yeun Kim, Kyoungki-do, KR;
Assignee:
Hynix Semiconductor Inc., Kyoungki-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01); G11C 7/00 (2006.01); G11C 8/00 (2006.01); G11C 8/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes a clock period detector, a column address enable signal generator, and a multiplexing circuit. The clock period detector detects a period of an external clock in response to a pulse width information signal having a pulse width corresponding to that of the external clock. The column address enable signal generator generates a column address enable signal activated in response to a column access signal. The multiplexing circuit multiplexes points of time of inactivation of the column access signal in response to the detected signal outputted from the clock period detector.