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Radio communication system including indication that communication link is established

  • US 5,396,651 A
  • Filed: 04/01/1992
  • Issued: 03/07/1995
  • Est. Priority Date: 04/01/1992
  • Status: Expired due to Fees
First Claim
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1. A transceiver for use in a networked radio communication system, which includes a plurality of similar transceivers that function both as source transceivers and destination transceivers, said transceiver and said plurality of similar transceivers allowing operators of said transceiver and said plurality of similar transceivers to communicate with one another, said transceiver comprising:

  • transmitter means for transmitting an interrogate signal to a particular one of said plurality of similar transceivers when said transceiver is acting as a source transceiver to determine whether a communication link exists between said transceiver and said particular one of said plurality of similar transceivers, and for automatically transmitting an acknowledge signal to said plurality of similar transceivers upon receipt of an interrogate signal from one of said plurality of similar transceivers when said transceiver is acting as a destination transceiver to indicate that a communication link exists between said transceiver and said one of said plurality of similar transceivers, without any action by the operator of said transceiver;

    receiving means for receiving an acknowledge signal transmitted from said particular one of said plurality of similar transceivers to indicate that said communication link exists between said transceiver and said particular one of said plurality of similar transceivers, said acknowledge signal being automatically transmitted by said particular one of said plurality of similar transceivers when said particular one of said plurality of similar transceivers receives the interrogate signal transmitted by said transmitter means when said transceiver is acting as a source transceiver, without any action by the operator of said particular one of said plurality of similar transceivers;

    decoder means for;

    (i) analyzing the acknowledge signal that was received by said receiving means to determine whether said acknowledge signal that was received by said receiving means was transmitted by said particular one of said plurality of similar transceivers; and

    (ii) if said acknowledge signal that was received by said receiving means was transmitted by said particular one of said plurality of similar transceivers, then producing a switch signala microphone for receiving an input voice signal from the operator of said transceiver to be transmitted from said transceiver to said plurality of similar transceivers;

    a set of earphones used by the operator of said transceiver to hear signals transmitted to said transceiver from said plurality of similar transceivers; and

    switch means for coupling said microphone to said set of earphones when said decoder means produces said switch signal, thereby allowing the operator of said transceiver to hear the input voice signal in the earphones as the input voice signal is transmitted by said transceiver to said plurality of similar transceivers, so as to provide the Operator of said transceiver an indication that said communication link has been established with said particular one of said plurality of similar transceivers.

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