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:
Jan. 11, 1994
Filed:
Mar. 07, 1991
Applicant:
Inventor:
Hidenori Nomura, Kasugai, JP;
Assignees:
Fujitsu Limited, Kawasaki, JP;
Fujitsu VLSI Limited, Kasugai, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518901 ; 36518908 ; 36518911 ; 307475 ;
Abstract
In a semiconductor memory device wherein a difference in potential of two data buses is increased during a write mode and is reduced during a read mode, a write/restoring circuit is provided for carrying out a write operation which increases the difference in potential between the data buses and a restoring operation which reduces the increased difference in potential of the data buses to carry out a read operation after the write operation in accordance with a common write control signal using common output transistors.