Improving the Correction of Soft Errors in Presence of Hard Ones
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01
This article describes a method for correcting most cases of one soft error in the presence of hard errors in the data stored in a memory, based upon the invert/non-invert concept. The inability to correct all cases of soft errors in the presence of two hard ones comes from the fact that inverting, before storing back the word, does not help if only one hard error is masked. For a given pattern the following may occur: Memory bits "stuck at" . . . . 0 . . 0 . . . . .