DTMF Signals Detector Using Multiplier-less Resonators

• Yakushinji Tsutomu

  Okinawa National College of Technology

• Noguchi Kentaro

  Toyohashi University of Technology

• Tadokoro Yoshiaki

  Okinawa National College of Technology

Bibliographic Information

Other Title

• マルチプライアレス共振器を用いたＤＴＭＦ信号検出器
• マルチプライアレス キョウシンキ オ モチイタ DTMF シンゴウ ケンシュツキ

Abstract

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.

Journal

• IEEJ Transactions on Electronics, Information and Systems

  IEEJ Transactions on Electronics, Information and Systems 126 (5), 596-602, 2006

  The Institute of Electrical Engineers of Japan

Keywords

• Multiplier-less Resonator
• DTMF Signals
• DTMF Detector

Details

• CRID: 1390001204605368448
• NII Article ID: 10018111384
• NII Book ID: AN10065950
• DOI: 10.1541/ieejeiss.126.596
• ISSN: 13488155
• ISSN: 03854221
• NDL BIB ID: 7947047
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7947047
• Web Site: http://www.jstage.jst.go.jp/article/ieejeiss/126/5/126_5_596/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed