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Community alarm/notification device, method and system

  • US 6,021,177 A
  • Filed: 06/26/1996
  • Issued: 02/01/2000
  • Est. Priority Date: 06/29/1995
  • Status: Expired due to Term
First Claim
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1. An emergency telephone broadcast system for sending an emergency notification signal over telephone lines in a designated geographic area to warn of an emergency situation, the system comprising:

  • a telephone transceiver system at a central location that receives an emergency notification for the designated geographic area and that transmits over a plurality of the telephone lines in the designated geographic area the emergency notification signal; and

    an alarm device, associated with one of the plurality of the telephone lines that receives the emergency notification signal at a user location, that issues an alarm signal at the user location in response thereto, wherein the emergency notification signal is a unique data signal distinct from telephone supervisory signals and independent of call status of a telephone coupled with the one of the plurality of telephone lines.

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