Signal transmission method and equipment

Signal transmission method and equipment

  • CN 1,159,685 A
  • Filed: 12/27/1996
  • Published: 09/17/1997
  • Est. Priority Date: 12/28/1995
  • Status: Abandoned Application
First Claim
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1. signal transmission apparatus wherein, is transmitted by transmission system by the 1-bit digital signal of sigma-delta modulator output, it is characterized in that this signal transmission apparatus comprises:

  • Phase-modulator is used for to carrying out phase modulated by the 1-bit digital signal of described sigma-delta modulator output, and this sigma-delta modulator is used for producing phase modulated signal, transmits this signal by transmission system;

    AndPhase demodulator is used for the phase modulated signal demodulation by transmission system output;

    Therefore, can make the 1-bit digital signal of transmission avoid reducing tonequality owing to power-supply fluctuation and radiation noise.

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