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.

Date of Patent:
Mar. 03, 1998

Filed:

Dec. 24, 1996
Applicant:
Inventors:

Mauro Sali, S. Angelo Lodigiano, IT;

Marcello Cane, Piobesi D'Alba, IT;

Corrado Villa, Sovico, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 365210 ; 365200 ;
Abstract

The invention relates to a programming method and device for detecting an error and inhibiting writing into a memory. The invention provides for the inclusion, in the standard programming method, of a checking step for interrupting the programming procedure and generating an error signal detecting the attempted overwriting of a '0' with a '1'. The checking step of the inventive programming method provides for an initial comparison between the contents of a plurality of bits being programmed and a corresponding plurality of bits to be written in, the generation of an error signal upon detection of homolog pairs with a value of 'one', and the interruption of the byte programming procedure to prevent a '1' from being written over a '0'.


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