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:
Oct. 25, 1994
Filed:
Mar. 09, 1992
Francis Bredin, Maisons Alfort, FR;
Thierry Cantiant, Dammarie-Les-Lys, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A memory system with adaptable redundancy comprises address decoding means (200) for the selection of one of the rows R.sub.1 to R.sub.2 (n+1) in the memory array, according to the binary value of address A.sub.0, A.sub.1, . . . A.sub.nn incoming on bus 102. Block 200 comprises 2.sup.(n+1) blocks 201 being able to drive an activation signal on leads R.sub.1 to R.sub.2 (n+1), and having an output connected to a lead 206. Block 205 is able to drive an activation signal on lead RR according to signals present on leads 107 and 206, so as to select redundant row RR.sub.1 without the use of a redundant address decoder.