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:
May. 17, 1994

Filed:

May. 05, 1992
Applicant:
Inventor:

Francis H Reiff, Manitou Springs, CO (US);

Assignee:

Digital Equipment Corporation, Maynard, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371-21 ; 371 401 ;
Abstract

A symbol interleaving method for organizing data in a semiconductor memory such that fault tolerance of the memory is optimized when used in conjunction with a Reed-Solomon burst error correcting code. The Reed-Solomon symbols are aligned with respect to the bus bits of the memory such that the impact of a bus bit failure that affects all memory devices in the memory using the bus is constrained within the correction capability of the ECC. The symbols also are distributed among the memory devices in order to maximize fault tolerance. Up to two memory devices in the preferred embodiment may fail without exceeding the correction capability of the code.


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