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:
Jun. 09, 1987
Filed:
Dec. 19, 1984
Applicant:
Inventor:
Masaaki Yoshida, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 38 ; 371 49 ; 371 13 ;
Abstract
An improved error-correction type semiconductor memory device operates at high speed. The memory is provided with a pair of row address buffers which can operate independently, and when error correcting operation is performed for the data related to the address contents of one of the buffers, the access operation of the data cell array is conducted by the other of the buffers, thereby enabling the memory device to simultaneously carry out parts of the operation of successive read-out operations.