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:
May. 11, 2004
Filed:
Dec. 19, 2002
Applicant:
Inventors:
Tim Fiscus, South Burlington, VT (US);
Dave Chapman, Shelburne, VT (US);
Assignee:
Cypress Semiconductor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A method of performing memory operations of a memory device having precharge, read and write states is disclosed. The method includes refreshing the memory device provided a refresh timer expired and the memory device is in the precharge state. The method further includes entering the precharge state, refreshing the memory device and returning to the read state provided the memory device is in the read state for a predetermined period of time. The memory device is refreshed provided the memory device is transitioning from the read state to the write state and the refresh timer has expired.