ELECTRONICALLY CONTROLLED SIREN
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United States of America Patent
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Issued Date -
Jul 13, 2023
app pub date -
Dec 22, 2022
filing date -
Jan 7, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An electronically controlled motor driven siren. The siren is electronically controlled to generate different sound profiles, while having advantages of a motor driven mechanical siren. In some embodiments, the siren is part of a system of multiple sirens. The phases of the rotors of the sirens of the system can be electronically controlled to generate different multi-siren combined sound profiles.
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