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:
Apr. 25, 2006
Filed:
Feb. 27, 2004
Gi Hong Kim, Suwon-si, KR;
Sun Hyoung Lee, Seoul, KR;
Gi Hong Kim, Suwon-si, KR;
Sun Hyoung Lee, Seoul, KR;
Silicon7 Inc., , KR;
Abstract
An SRAM-compatible memory device performs a refresh operation with separate fetching and rewriting operation periods.The SRAM-conpatible memory device can be activated by a method of driving the SRAM-compatible memory device. During a first refresh period, the SRAM-compatible memory device performs an operation of fetching data from a DRAM cell to be refreshed. During a second refresh period, the SRAM-compatible memory device performs an operation of rewriting the data fetched during the first refresh period in the refreshed DRAM cell. Accordingly, the length of an assigned refresh period is reduced, and the length of an entire external access period is also reduced.