Single event upset tolerant system and method

Details Single event upset tolerant system and method Single event upset tolerant system and method

1998-03-04

2000-07-04

Nguyen, Hoa T.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

714820, G06F 1108, G06F 702

Patent

active

060853506

ABSTRACT:
An single event upset (SEU) tolerant system for detecting and correcting an SEU includes a decision element (200) for receiving a plurality of outputs (120) from a plurality of signal generators (105) and producing an output (130) therefrom. The decision element includes voters which provide two levels of voting for the plurality of redundant outputs (120). First-level voters (300) provide intermediate voted outputs (315) which are received by a second-level voter to determine an output (130). An output disabler (400) determines when an output is provided external to the decision element. A plurality of comparators (210) receive intermediate voted outputs (315) from first-level voters and compare with a plurality of outputs from a plurality of signal generators to determine upset detected signals (125). An upset detected signal controls the selection of feedback for an element having experienced an SEU.

REFERENCES:
patent: 5297052 (1994-03-01), McIntyre et al.
patent: 5537583 (1996-07-01), Truong
patent: 5630046 (1997-05-01), Loise
patent: 5903717 (1999-05-01), Wardrop

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