Evaluation of Information Leakage from PC Displays Using Spectrum Analyzers(Electromagnetic Compatibility (EMC))
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概要
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To evaluate whether electromagnetic disturbances that leak from PC displays contain information or not, we need to reconstruct the information from the measured disturbance. This requires a special receiver, and not all test houses have a special receiver. In this paper, we propose performing the evaluation with the spectrum analyzers commonly used for EMI measurement. First, we select a spectrum that containing the frequency component of the vertical sync signal using a spectrum analyzer (SA1). Then, we measure the video output of SA1 using another spectrum analyzer (SA2) and evaluate the disturbance from the frequency component of the horizontal sync signal.
- 2007-11-01
著者
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HATTORI Mitsuo
NTT Advanced Technology Corp.
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Hattori Mitsuo
Ntt Advanced Technology Corporation
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Yamanaka Yukio
National Inst. Of Information And Communication Technol. Koganei‐shi Jpn
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Ishikawa Ryo
Univ. Of Electro‐communications Chofu‐shi Jpn
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TOSAKA Toshihide
National Institute of Information and Communication Technology
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FUKUNAGA Kaori
National Institute of Information and Communication Technology
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Yamanaka Yukio
National Inst. Information And Communication Technol. Koganei‐shi Jpn
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Fukunaga Kaori
National Inst. Information And Communications Technol.
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ISHIKAWA Ryo
NTT Advanced Technology Corporation
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Ishikawa Ryo
The University Of Electro-communications
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Tosaka Toshihide
National Inst. Information And Communication Technol. Koganei‐shi Jpn
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