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Siren detection notification alarm

  • US 20070008175A1
  • Filed: 07/06/2005
  • Published: 01/11/2007
  • Est. Priority Date: 07/06/2005
  • Status: Abandoned Application
First Claim
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1. A siren detection notification alarm for detecting a siren emitted by an emergency response vehicle, said siren detection notification alarm carried in a civilian vehicle driven by a driver, comprising:

  • a. an input transducer, said input transducer configured to convert ambient sounds into electrical signals and transmit said electrical signals to an electric circuit;

    b. a bandpass filter, said bandpass filter electrically connected to said electric circuit and configured to transmit a design range of frequencies corresponding to frequencies of said siren;

    c. a time counter, said time counter electrically connected to said electric circuit and configured to transmit a first activating signal when said bandpass filter transmits electric signals falling within its design range of frequencies for a design period of time;

    d. a decibel level detector, said decibel level detector connected to said electric circuit and configured to transmit a second activating signal when said electrical signals transmitted by said input transducer exceed a design intensity threshold;

    e. an alarm means, said alarm means adapted to notify said driver when said siren is detected; and

    f. a switching means, said switching means configured to activate said alarm means when said decibel level detector transmits said second activating signal substantially concurrently with said time counter transmitting said first activating signal.

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