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Method of activating a supplemental visual warning signal based on frequency emitted from a generator of a primary audible warning signal

  • US 10,002,503 B2
  • Filed: 07/28/2017
  • Issued: 06/19/2018
  • Est. Priority Date: 10/24/2008
  • Status: Active Grant
First Claim
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1. A system to activate supplemental signals in response to primary signals, the system comprising:

  • a plurality of first signal devices for generating the primary signals, each of the first signal devices being associated with one of a plurality of defined areas to generate one of the primary signals to indicate specified events associated with said one of the plurality of defined areas;

    a plurality of second signal devices for generating the supplemental signals, each of the second signal devices being associated with one of the defined areas;

    a transceiver having a plurality of settable operating frequency for communicating with the first and second signal devices; and

    a computer for determining one of the operating frequencies of the transceiver to associate the transceiver with a selected one of the defined areas;

    wherein when one of the first signal devices associated with the selected one of the defined areas generates one of the primary signals to indicate one of the specified events relating to the selected one of the defined, said one of the first signal devices sends an activation signal to the transceiver, and the transceiver is activated by the activation signal, and in response, the transceiver activates one or more of the second signal devices associated with said selected one of the defined areas to generate one or more of the supplemental signals to confirm that said one of the first signal devices has generated one of the primary signals to indicate the one of the specified events related to said selected ons of the defined areas.

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