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:
Apr. 24, 2001
Filed:
Dec. 03, 1998
Applicant:
Inventor:
Mitsunori Kori, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/314 ; G06F 1/320 ; G06F 1/340 ;
U.S. Cl.
CPC ...
G06F 1/314 ; G06F 1/320 ; G06F 1/340 ;
Abstract
A data processing apparatus with a hierarchical bus for realizing appropriate data transfer speed and data processing speed, even if more I/O devices are connected to the data processing apparatus. Processors are provided in a part or all of the layers in the hierarchical bus. The processors perform selection, projection, and accumulation of data transmitted from I/O devices to a main memory. Accordingly, the quantity of data transmitted to a system bus at an upper layer can be reduced, and the quantity of data processed by the central processing unit can be reduced.