• 제목/요약/키워드: Chung-Ki

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ACELP/MP-MLQ에 기초한 dual-rate 음성 코더의 DSP 구현 (Implementation of the ACELP/MPMLQ-Based Dual-Rate Voice Coder Using DSP)

  • 이재식;손용기;전일;장태규;민병기
    • 한국음향학회:학술대회논문집
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    • 한국음향학회 2000년도 하계학술발표대회 논문집 제19권 1호
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    • pp.51-54
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    • 2000

  • This paper describes the fixed-point DSP implementation of a CELP(code-excited linear prediction)-based speech coder. The effective realization methodologies to maximize the utilization of the DSP's architectural features, specifically Parallel movement and pipelining are also presented together with the implementation results targeted for the ITU-T standard G.723.1 using Motorola DSP56309. The operation of the implemented speech coder is verified using the test vectors offered by the standard as well as using the peripheral interface circuits designed for the coder's real-time operation.

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발전소용, 인버터에 의한 절전형 아크용접기에 관한 연구 (A Study on Arc Welder of Inverter for Energy Saving in Power Station)

  • 윤병도;김윤호;김기용;정재륜;김찬기;이종선
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1993년도 정기총회 및 추계학술대회 논문집 학회본부
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    • pp.157-159
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    • 1993

  • Recently, in the industrial applications, accurate arc control for welding machine are developed. This paper describes arc control of inverter-fed arc welding machine, and efficiency of inverter-fed arc welding machine. It is shown that the arc pressure and are stiffness of the pulse arc nay be as much as several times that of the equivalent dc are. Finally, the theoretical predictions are compared with test. The potential of such a welding machine is also described.

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