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Method and apparatus for selectively squelching analog signals produced by a paging terminal

  • US 5,491,836 A
  • Filed: 12/02/1993
  • Issued: 02/13/1996
  • Est. Priority Date: 12/02/1993
  • Status: Expired due to Fees
First Claim
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1. A method for producing analog signals at an analog output in a communication system, the method comprising the steps of:

  • receiving tone signals on tone lines during a first plurality of time periods;

    receiving voice signals on voice lines during a second plurality of time periods;

    detecting power levels of any signal on the tone lines;

    averaging the power levels to provide an average value;

    deciding that the tone signals are present on the tone lines when the average value exceeds a predetermined value for a predetermined amount of time;

    coupling the tone signals to the analog output when the tone signals are present on the tone lines;

    coupling the voice signals to the analog output when the tone signals are not present on the tone lines; and

    coupling the analog output to a transmitter for transmitting the tone and voice signals provided thereto as a radio frequency (RF) signal.

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