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:
Jul. 26, 1994
Filed:
Apr. 11, 1991
Applicant:
Inventor:
William J Podkowa, Plano, TX (US);
Assignee:
Dallas Semiconductor Corp., Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395425 ; 364D / ;
Abstract
Preferred embodiments have an external RAM controlled by logic on an internal RAM with overlapping address space. Read requests from addresses in the overlapping portion are directed to internal RAM only by controlling the output enable signal of external RAM; contrarily, writes to addresses in the overlapping portion proceed in both internal and external RAM simultaneously.