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:
Mar. 27, 1990
Filed:
Jan. 15, 1988
Applicant:
Inventors:
Takashi Shinoda, Hamura, JP;
Masamichi Ishihara, Hinode, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
36523001 ; 3652335 ; 365233 ;
Abstract
A microprocessor or the like supplies a plurality of address signals for memory access according to its own operation speed irrespective of the operation speed of a memory. A plurality of registers receives and stores the plurality of address signals which are inputted in an asynchronous state. The memory access is performed according to a sequence signals of the address signals stored in the plurality of registers.