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. 02, 1988
Filed:
Jul. 01, 1985
Applicant:
Inventor:
Muhammad I Khera, Glendale, AZ (US);
Assignee:
GTE Automatic Electric Incorporated, Phoenix, AZ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G11C / ;
U.S. Cl.
CPC ...
364200 ; 365222 ;
Abstract
A dynamic RAM refresh circuit provides the interface for timely refresh of up to 64K of RAM memory while simultaneously providing for minimal disruption of a CPU's access of that RAM memory. Circuitry is also provided to permit interlock control for timeshared access of the RAM memory on a shared basis with the refresh circuit.