マルチプライアレス共振器を用いたDTMF信号検出器 DTMF Signals Detector Using Multiplier-less Resonators

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The conventional methods to detect the DTMF signals are accomplished by comparing the power of an input signal using the DFT. This paper proposes a new DTMF signals detector using a multiplier-less resonators which have not the multiplications to get output signals. The proposed method detects the DTMF signals using whether the outputs of the multiplier-less resonators resonate or not. This processing is realized by controlling a downsampling ratio, that is, a time component of the input signal. Therefore, the simple algorithm which can mainly be processed by the additions and subtractions is derived. We compare the proposed method for the DTMF signals detector with the conventional method in terms of the computational complexity and show the detection performance of the proposed method.

収録刊行物

  • 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society  

    電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 126(5), 596-602, 2006-05-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018111384
  • NII書誌ID(NCID)
    AN10065950
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854221
  • NDL 記事登録ID
    7947047
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-795
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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