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Digital and voice telecommunication apparatus

  • US 4,524,244 A
  • Filed: 08/05/1983
  • Issued: 06/18/1985
  • Est. Priority Date: 08/05/1983
  • Status: Expired due to Term
First Claim
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1. A communication apparatus for transmitting and receiving analog voice signals, digital data signals, and data carrier signals that precede and follow the digital data signals to and from a communication medium, in the same session, said apparatus comprising:

  • telephony means for transmitting and receiving said voice signals to and from said medium;

    modem means for transmitting and receiving said data signals to and from said medium;

    switch means interposed between said communication medium, said telephony means, and said modem means;

    said switch means are adapted to connect said medium and said telephony means and said modem means in a first position and in a second position, wherein in said first position said telephony means are connected to transmit and to receive voice signals to and from said medium and said modem means are connected to receive data carrier signals from said medium; and

    wherein in said second position said telephony means are disconnected from said medium and said modem means are connected to transmit and to receive digital data signals to and from said medium; and

    control means for controlling said switch means between said first position and said second position;

    said control means for automatically switching said switch means from said first position to said second position when said apparatus transmits data signals to said medium or when said modem means detects said data carrier signals; and

    said control means for automatically switching said switch means from said second position to said first position when said apparatus terminates the transmission of digital data signal to said medium or when said modem means ceases to receive data signals from said medium;

    whereby said data signal and voice signal are transmitted and received to and from said communication medium in the same session.

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