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:
Sep. 03, 2002
Filed:
Feb. 07, 2001
Applicant:
Inventor:
Wataru Sakamoto, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
Sense amplifier circuits are arranged on either side of each column of a memory block through a bit line isolation circuit. A sensing operation is performed with a bit line pair and the sense amplifier circuit being isolated. The bit line pair is isolated from the sense amplifier circuit during the sensing operation, so that another word line can be set in the selectable state. Another row can be driven into the selected state when data access with respect to the sense amplifier circuit is performed. Thus, an overhead in page switching in a memory system is reduced and a bus utilization efficiency is improved.