Excavating
Patent
1989-06-09
1992-03-24
Smith, Jerry
Excavating
G06F 1110, G11C 2900, H03M 1300
Patent
active
050994840
ABSTRACT:
An error detection and correction scheme is provided utilizing a modified Reed-Solomon code which has been optimized to detect erroneous memory location accessing and catastrophic failure condition of data containing either all ones or all zeros for N-bit wide semiconductor random access memories. When data is written to memory, the scheme calculates a series of check bits to represent a data word and the address of the location that the data word is to be stored and stores that information in memory. When data is read from memory, a series of syndromes are calculated based upon the data read and its memory location. These syndromes are compared which enables the system to detect which symbol of the data word an error occurs and the corrected value of that symbol.
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Chung Phung My
Digital Equipment Corporation
Smith Jerry
LandOfFree
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