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:
May. 21, 1991
Filed:
Jan. 16, 1990
Applicant:
Inventors:
Takashi Shinoda, Tokyo, JP;
Masamichi Ishihara, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G11C / ;
U.S. Cl.
CPC ...
36523008 ; 36518905 ; 365233 ;
Abstract
A microprocessor or the like supplies address signals for memory access according to its own operation speed irrespective of operation speed of a memory. A plurality of registers which take a plurality of address signals inputted in asynchronous state are installed in the memory. The memory access is performed according to sequence of the address signals taken in these plural registers.