Design of a fault‐tolerant arithmetic circuit based on distributed coding and its evaluation

Takeshi Kasuga Member, Michitaka Kameyama, Tatsuo Higuchi

研究成果: Article査読

抄録

The robust fault tolerance is a property that even if an error occurs in the arithmetic circuit, the result of operation does not differ much from the correct value. Such a property will become more important in the construction of a highly safe system. In the present digital system, the weighted code is used in representing numerical information. In this scheme, when an error occurs in a bit with a large weight, the result of operation will differ greatly from the correct value, affecting the safety of the whole system. from such a viewpoint, this paper proposes the distributed coding, i.e., the arithmetic circuit based on the number system with uniform weight 1. It is shown theoretically together with the result of execution that such a circuit is much better than the arithmetic circuit based on the weighted traditional code, in terms of the robust fault tolerance, i.e. the safety.

本文言語English
ページ(範囲)59-71
ページ数13
ジャーナルSystems and Computers in Japan
21
8
DOI
出版ステータスPublished - 1990 1 1

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • 情報システム
  • ハードウェアとアーキテクチャ
  • 計算理論と計算数学

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