Voice activated date rate change in simultaneous voice and data transmission

  • US 5,475,691 A
  • Filed: 11/15/1993
  • Issued: 12/12/1995
  • Est. Priority Date: 11/15/1993
  • Status: Expired due to Term
First Claim
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1. A method for use in data communications equipment, the method comprising the steps of:

  • selecting a signal space as a function of the detection of an analog signal;

    selecting symbols from the selected signal space as a function of an applied data signal;

    providing a resultant signal, where the resultant signal represents the selected symbols when no analog signal is detected and represents the addition of a respective signal point to each one of the selected symbols when the analog signal is detected; and

    transmitting the resultant signal.

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