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.

Date of Patent:
Jul. 03, 2007

Filed:

Jul. 19, 2006
Applicants:

Shinya Fujioka, Kawasaki, JP;

Kotoku Sato, Kawasaki, JP;

Inventors:

Shinya Fujioka, Kawasaki, JP;

Kotoku Sato, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A command register holding a decoded result of information relating to an access request supplied from an outside and an address register are provided, and decode of the information relating to an access request from the outside in a processing circuit, namely, a chip control circuit and an address decoder, and an operation corresponding to the external access request in a memory cell array by an access control circuit are made executable independently in parallel, whereby access requests from the outside can be inputted in multiple, and a pipelined operation can be realized for decode and an operation corresponding to the external access request in the memory cell array, thus making it possible to speed up the access operation to a semiconductor memory device without causing any problem.


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