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:
Feb. 28, 1989

Filed:

Feb. 27, 1987
Applicant:
Inventors:

Richard A Lemay, Carlisle, MA (US);

David A Wallace, Chelmsford, MA (US);

Assignees:

Hutton/PRC Technology Partners 1, Minneapolis, MN (US);

Honeywell Bull Inc., Minneapolis, MN (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 38 ; 371-5 ;
Abstract

Memory failure detection apparatus is disclosed which is used with a large capacity memory that is organized in banks of memory, and with which error correction circuitry is used to correct correctable errors and provide an indication of same. The detection apparatus is responsive to the error indications and to a bank select addressing signal to provide and store error counts for a bank or banks of memory located on each memory board. A system processor periodically reads the error counts and responds to same to provide a maintenance message indicating that a specific memory board is to be replaced.


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