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:
Jul. 28, 1992
Filed:
Jan. 10, 1991
Applicant:
Inventor:
Takatoshi Ishii, Tokyo, JP;
Assignee:
ASCII Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G06F / ;
U.S. Cl.
CPC ...
36518908 ; 36518905 ; 3652385 ; 365 63 ; 395164 ; 395425 ; 340799 ; 340803 ;
Abstract
A memory system is provided with two data buffers, respectively, in the row and column directions of a memory array. The system is capable of operating either one of the two data buffers as input/output buffers in accordance with reading or writing operations on the contents of the memory array. Outputs from the memory array are inverted to form an inverted array. All bits along respective columns of the array are ANDed together to obtain an ANDed bit value for each column of the inverted array.