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Voice and data communication system

  • US 4,740,963 A
  • Filed: 01/30/1986
  • Issued: 04/26/1988
  • Est. Priority Date: 01/30/1986
  • Status: Expired due to Fees
First Claim
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1. A voice communication system comprising:

  • voice means for supplying an analog voice signal having a predetermined bandwidth;

    analog-to-digital converter means for converting the analog voice signal to a corresponding digital voice signal having a predetermined data rate;

    data compression means for converting the digital voice signal to a compressed voice signal having a reduced data rate;

    data means for supplying a first digital data signal;

    multiplexer means for time-division multiplexing the compressed voice signal and the first digital data signal to produce a composite digital signal;

    selector means for selectively connecting to an output terminal either the analog voice signal or the composite digital signal; and

    transmitter means for transmitting the signal connected to the output terminal by the selector means.

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