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:
Dec. 02, 1986
Filed:
Jun. 07, 1984
Applicant:
Inventor:
Kenji Yashiro, Tokyo, JP;
Assignee:
Pioneer Electronic Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365230 ; 365189 ;
Abstract
A memory system including a circuit for switching control of a read-only memory and a random-access memory to allocate addresses thereto. The addresses are switched between the read-only memory and the random-access memory by selecting a mode in which the read-only memory is operated when reading therefrom and the random-access memory is operated when writing thereinto, and a mode in which the random-access memory is operated when reading therefrom and writing thereinto.