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:
Nov. 03, 2009
Filed:
Dec. 28, 2007
Kyung-hoon Kim, Kyoungki-do, KR;
Jun-woo Lee, Kyoungki-do, KR;
Dae-kun Yoon, Kyoungki-do, KR;
Taek-sang Song, Kyoungki-do, KR;
Kyung-Hoon Kim, Kyoungki-do, KR;
Jun-Woo Lee, Kyoungki-do, KR;
Dae-Kun Yoon, Kyoungki-do, KR;
Taek-Sang Song, Kyoungki-do, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
Semiconductor memory device with duty correction circuit includes a clock edge detector configured to generate first and second detection pulses in response to a transition timing of a common clock signal in an initial measurement operation; a duty detector configured to compare the first and second detection pulses to output comparison result signals; and a code counter configured to control the duty detector based on the comparison signals outputted from the duty detector in the initial measurement operation.