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Emergency alert communication system wherein emergency messages are received by a radio frequency receiver and routed to a telephone device

  • US 5,917,887 A
  • Filed: 09/08/1997
  • Issued: 06/29/1999
  • Est. Priority Date: 09/08/1997
  • Status: Expired due to Fees
First Claim
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1. An emergency alert communication system in which radio frequency emergency alert signals are transmitted, said radio frequency emergency alert signals include a header having data code signals followed by emergency alert voice message signals, said emergency alert communication system comprising:

  • (a) a radio frequency receiver for decoding and demodulating said radio frequency emergency alert signals to provide decoded and demodulated data code signals followed by decoded and demodulated emergency alert voice message signals;

    (b) converting means responsive to decoded and demodulated data code signals for producing digital data code signals;

    (c) an audio switching circuit connected to said radio frequency receiver for receiving decoded and demodulated emergency alert voice message signals;

    (d) electronic processing means for detecting said digital data code signals and controlling the passage of said emergency alert voice message signals through said audio switching circuit;

    (e) audio reproducing means for producing an emergency alert voice message; and

    (f) a keypad connected to said electronic processing means for entering into said electronic processing means coded signals;

    (g) said electronic processing means comparing said digital data code signals from said converting means with said coded signals entered into said electronic processing means by said keypad, said electronic processing means being responsive to the matching of said digital data code signals from said converting means with said code signals entered into said electronic processing means by said keypad for routing said emergency alert voice message signals through said audio switching circuit to said audio reproducing means.

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