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:
Jan. 07, 1997
Filed:
Jul. 26, 1994
Applicant:
Inventors:
Koichi Kimura, Yokohama, JP;
Toshihiko Ogura, Ebina, JP;
Hiroaki Aotsu, Yokohama, JP;
Mitsuru Ikegami, Kanagawa-ken, JP;
Tadashi Kuwabara, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395481 ; 36518905 ; 36518904 ; 365239 ; 364D / ; 345113 ;
Abstract
A memory circuit including memory elements on which the data read, write, and store operations can be arbitrarily performed, the memory elements having a dyadic/arithmetic operation function. utilizing presetting in a read/modify/write mode to be executed during a memory cycle and in an interval in which data from the memory elements and data from external devices exist, an operation is executed between the external data and the data in the memory elements and the operation result is stored during a write cycle, thereby achieving a higher-speed operation.