Demodulation Signal Generator for Air Pulse Generator
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United States of America Patent
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Issued Date -
Apr 18, 2024
app pub date -
Dec 26, 2023
filing date -
Jan 14, 2021
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Abstract
A demodulation signal generator, coupled to an air-pulse generator comprising a flap pair, includes a resonance circuit. The resonance circuit produces a first demodulation signal and a second demodulation signal. The resonance circuit and the flap pair co-perform a resonance operation, such that the first demodulation signal and the second demodulation signal are generated via the co-performed resonance operation and have opposite polarity. The flap pair performs a differential movement to form an opening to perform a demodulation operation on a modulated air pressure variation.
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