データ処理装置における誤り検出

Japanese Patent JP4386766

B2

Data processing apparatus is provided for processing input data (DIN) to produce output data (DOUT). The data processing apparatus comprises: a first processing unit (12) for processing the input data (DIN) in a first processing period (T1) according to a predetermined algorithm to produce first output data (DOUT1) and a second processing unit (14) for processing the input data (DIN) in a second processing period (T2) according to the predetermined algorithm to produce second output data (DOUT2). The data processing apparatus further comprises a comparison unit (4) for comparing the first and second output data (DOUT1 and DOUT2) to determine whether there has been a processing fault. The first and second processing units (12 and 14) are operable to perform their processing such that the first and second processing periods (T1 and T2) overlap and also such that at least once during the period of overlap the first and second processing units (12 and 14) perform processing according to different respective parts of the predetermined algorithm.

John Nonwella
Andrew Kay

JP2004068254A

December 16, 2009

March 10, 2004

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Sharp Corporation

G06F21/75; G06F11/16; G06F11/18; G06F12/14; G06F15/00; G06F21/00; G06F21/86; G06K19/073; H04L9/10; G06F1/00

JP2005503069A
JP2003051817A
JP11008616A

長谷部 高行,岡田 壮一,鳥居 直哉,天満 尚二,早坂 和美,高田 滋,高速・高信頼性DESチップの開発,電子情報通信学会1998年基礎・境界ソサイエティ大会講演論文集 PROCEEDINGS OF THE 1998 ENGINEERING SCIENCES SOCIETY CONFERENCE OF IEICE,1998年10月 2日,pp.116
小柳津 育郎,やさしい情報セキュリティ(第8回),ビジネスコミュニケーション,日本,株式会社ビジネスコミュニケーション社,1997年 3月 1日,Vol.34, No.3,pp.78-81

Hidesaku Yamamoto
Takaaki Yasumura
Takeshi Oshio

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