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. 11, 2003
Filed:
Dec. 27, 2001
In Chul Jung, Seoul, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
A data output circuit and accompanying method for use in a semiconductor memory is disclosed for converting parallel data into serial data and, in particular, for converting the parallel data used in a Double Data Rate Synchronous DRAM (DDR) into serial data. The data output circuit and accompanying method intermediately store a falling data synchronized with a rising edge of one clock for a predetermined time period up to a next rising edge. Final data is merged in response to the stored falling data, thereby preventing failure between the data and ensuring a wide frequency range. Accordingly, the data output circuit and the method may be applied to all kinds of DDR products to prevent data failures therein.