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Data transmitting-receiving system

  • US 4,584,692 A
  • Filed: 12/05/1983
  • Issued: 04/22/1986
  • Est. Priority Date: 12/07/1982
  • Status: Expired due to Term
First Claim
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1. A data transmitting-receiving system operatively connected to receive digital input data and first and second carriers, comprising:

  • a transmitter part, operatively connected to receive the digital input data and the first carrier, for modulating the first carrier with the digital input data to obtain a modulation signal and for transmitting the modulation signal therefrom; and

    a receiver part, operatively connected to said transmitter part and operatively connected to receive the second carrier, for receiving the modulation signal and for demodulating the modulation signal with the second carrier, having the same frequency as that of the first carrier, to reproduce, as digital output data, the digital input data,said transmitter part including means for simultaneously transmitting the modulation signal on one of a vertically polarized wave and a horizontally polarized wave and for transmitting the first carrier to said receiver part on the other of the vertically and horizontally polarized waves,said receiver part including means for simultaneously receiving the modulation signal and the first carrier, and for achieving synchronous detection of the received modulation signal with the received first carrier so as to demodulate the modulation signal, thereby obtaining the digital output data.

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