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. 04, 1994
Filed:
Jan. 10, 1991
Applicant:
Inventors:
Hiroaki Fukumaru, Hitachi, JP;
Siochi Takaya, Hitachi, JP;
Yoshihiro Miyazaki, Hitachi, JP;
Daniel M McCarthy, Phoenix, AZ (US);
Assignees:
Hitachi, Ltd., Tokyo, JP;
Arix Computer, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
395425 ; 364D / ; 36424341 ; 36424343 ; 3642281 ;
Abstract
A data processing device which includes a common memory connecting mechanism which is located between a memory bus to which copyback cache is connected, and a common memory. The common memory connecting mechanism includes a slave type transfer mechanism which directly assesses the common memory bypassing the cache and processes thereof, and a data mover which transfers data between the common memory and main memory.