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:
Nov. 07, 1989
Filed:
Jun. 08, 1987
Applicant:
Inventors:
Tadashi Okamoto, Hirakata, JP;
Hiroshi Kadota, Toyonaka, JP;
Jiro Miyake, Moriguchi, JP;
Ichiro Okabayashi, Hirakata, JP;
Yoshinori Maeda, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
365200 ; 36523003 ; 365218 ; 36518901 ; 365 49 ;
Abstract
A memory device includes plural word data storing rows. Each word data storing row is composed of a plurality of data bit cells for storing the word data, and a valid bit cell for indicating the validity of data. The valid bit cell has a reset circuit composed of FETs, and the reset circuits are connected to one reset line. By applying a reset signal to one reset line, plural valid bit cells are reset as a batch.