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Emergency service apparatus and method

  • US 5,162,776 A
  • Filed: 07/09/1991
  • Issued: 11/10/1992
  • Est. Priority Date: 07/09/1991
  • Status: Expired due to Term
First Claim
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1. A system for providing positive indication that a responder has arrived at a subscriber'"'"'s location, said system comprising:

  • a central monitoring station;

    a subscriber station capable of communication with said central monitoring station, said subscriber station comprising;

    a home communicator for establishing communications between said home communicator and said central monitoring station;

    a personal communicator for initiating said communication between said home communicator and said central monitoring station; and

    a local annunciator located at said subscriber station, for providing a tone indicating the central monitoring station has received a first help call from said subscriber station, and for indicating said central monitoring station has not received a communication from a responder who has arrived at said subscriber station; and

    a central timer located at said central monitoring station, said central timer capable of causing a warning message to be periodically generated at said central monitoring station, said central timer being started in response to said first help call from said subscriber station,wherein initiation of a subsequent help call from said subscriber station causes said local annunciator to stop generating said tone and also causing the central timer to stop thereby preventing the generation of said warning message.

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