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:
Jun. 16, 1992
Filed:
Jul. 17, 1991
Applicant:
Inventor:
Egbert Graeve, Los Altos, CA (US);
Assignee:
Schlumberger Tecnologies, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365219 ; 365221 ; 365222 ; 36523008 ;
Abstract
A data stream smoothing circuit wherein a FIFO memory receives data from the DRAM, and a memory status circuit provides a memory-full status signal when the FIFO memory contains a selected amount of data from the DRAM. A refresh timer generates a refresh request signal whenever DRAM refresh should be performed. When the refresh request signal is generated, a refresh control circuit refreshes a row of data in the DRAM upon occurrence of the next memory-full status signal.