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NTIS 바로가기電子工學會論文誌. Journal of the Institute of Electronics Engineers of Korea. TC, 통신, v.38 no.9 = no.291, 2001년, pp.21 - 28
The economical detection of dual-tone multi-frequency(DTMF) signals is an important factor when developing cost-effective telecommunication equipment. Each chanel has independently a DTMF receiver, and it informs the detected signal to processors. In order to detect the DTMF signals, the receiver us...
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