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. 13, 1982
Filed:
Jul. 05, 1979
Applicant:
Inventors:
Alan B Davison, San Diego, CA (US);
Wayne J Lewis, Escondido, CA (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G06F / ;
U.S. Cl.
CPC ...
364900 ; 365230 ;
Abstract
A memory system having a word-addressable memory and bit changing circuitry for changing or updating individual bits within the data words stored in the memory. The memory includes a primary memory and a copy memory. The copy memory stores duplicates of the data words stored in the primary memory. The bit changing circuitry receives a word having a bit to be changed from the copy memory and returns the word, including the changed bit, to both the primary memory and copy memory.