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. 04, 1997
Filed:
Oct. 29, 1993
Applicant:
Inventors:
Shigeki Masumura, Kodaira, JP;
Hideo Nakamura, Tokyo, JP;
Kouki Noguchi, Kokubunji, JP;
Shumpei Kawasaki, Kodaira, JP;
Kaoru Fukada, Koganei, JP;
Yasushi Akao, Kokubunji, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi ULSI Engineering Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395306 ; 395287 ;
Abstract
In a microcomputer system, an access operation is executed in a pipeline mode via buses to which bus masters are connected, and a control of the pipeline execution is performed by a bus controller. Furthermore, an access for delaying this pipeline operation is carried out by low-level of hierarchical buses connected by a buffer and a low-level bus controller.