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:
Apr. 11, 1995
Filed:
Sep. 28, 1993
Applicant:
Inventor:
Izumi Hayashibara, Tokyo, JP;
Assignee:
Kawasaki Steel Corporation, Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365 49 ; 395 24 ;
Abstract
In a content addressable memory, a plurality of non-volatile memory cells each are provided in conjunction with the associated one of a plurality of match lines, thresholds of the plurality of non-volatile memory cells are selectively altered on the basis of a teacher-signal, and in read out of data, selected is a match line associated with a non-volatile memory cell having a maximum weight, if the match signal appears on a plurality of match lines, the thresholds of the non-volatile memory cells being treated as the weights, thereby reading out data which has been stored in the word memory involved in the maximum weight.