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. 23, 1995
Filed:
Feb. 14, 1994
Applicant:
Inventor:
Masami Taoda, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518905 ; 36518901 ; 365236 ; 395250 ;
Abstract
An external device for sending data can execute write access by the control of a buffer memory management unit and an access control unit only when an empty area is present in a buffer memory area of a memory designated by an area designating unit of the buffer memory management unit. Another external device for receiving data can execute read access by the control of the buffer memory management unit and an access control unit only when data is stored in the buffer memory area. The external devices with different processing speeds can transfer data asynchronously.